Liabilities / Assets
57th percentile
Higher debt load relative to assets than 57% of similar nonprofits.
EIN 04-2702169 • 501(c)3 • Boston, MA
Profile
The Foundation operates the Department of Anesthesia at Boston Children's Hospital and in communities throughout greater Boston. The physicians and CRNAs of the Foundation provide anesthesia services to patients at the Hospital and perform anesthesia (see Schedule O) research activities as well as lectures and publish related articles. The Foundation also provides care for patients in need of anesthesiology services regardless of their ability to pay.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
57th percentile
Higher debt load relative to assets than 57% of similar nonprofits.
Liabilities / Revenue
68th percentile
Higher debt load relative to revenue than 68% of similar nonprofits.
Net Margin
54th percentile
Higher net margin than 54% of similar nonprofits.
Top Officer Pay
77th percentile
Higher top officer pay than 77% of similar nonprofits.
Top officer pay equals 0.8% of source-year revenue.
Asset Growth
78th percentile
Faster asset growth than 78% of similar nonprofits.
Revenue Growth
25th percentile
Faster revenue growth than 25% of similar nonprofits.
Assets
Up$351,127,028
Up $40,673,910 (+13%) from 2023
Liabilities
Up$124,414,065
Up $24,091,412 (+24%) from 2023
Net Assets
Up$226,712,963
Up $16,582,498 (+7.9%) from 2023
Revenue
Down$159,785,556
Down $1,437,140 (-0.9%) from 2023
Expenses
Up$152,531,963
Up $6,029,579 (+4.1%) from 2023
Net Income
Down$7,253,593
Down $7,466,719 (-51%) from 2023
Most recent year
2024 • Form 990Facts available. Structured filing facts are available, but richer extracted sections are limited.
The Foundation operates the Department of Anesthesia at Boston Children's Hospital and in communities throughout greater Boston. The physicians and CRNAs of the Foundation provide anesthesia services to patients at the Hospital and perform anesthesia (see Schedule O) research activities as well as lectures and publish related articles. The Foundation also provides care for patients in need of anesthesiology services regardless of their ability to pay.
The Foundation provides medical research and educational services to Boston (see Schedule O) Children's Hospital and Harvard Medical School. The Foundation also provides care for patients in Massachusetts regardless of their ability to pay, as well as providing and supporting hospital and community based services that are either unavailable or limited elsewhere in the community.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Investments in Publicly Traded Securities | $146,466,521 | $162,342,905 | ▲ $15,876,384 |
| Investments Other Securities | $85,063,186 | $97,805,098 | ▲ $12,741,912 |
| Savings and Temporary Cash Investments | $24,123,470 | $27,065,985 | ▲ $2,942,515 |
| Accounts Receivable | $15,010,321 | $13,590,142 | ▼ $1,420,179 |
| Other Notes and Loans Receivable, Net | $3,212,640 | $4,122,527 | ▲ $909,887 |
| Cash and Non-Interest-Bearing Accounts | $1,396,015 | $3,206,438 | ▲ $1,810,423 |
| Receivables From Officers Etc | $1,016,667 | $916,667 | ▼ $100,000 |
| Prepaid Expenses and Deferred Charges | $336,513 | $366,413 | ▲ $29,900 |
| Land, Buildings, and Equipment, Net | $219,715 | $96,132 | ▼ $123,583 |
| Total Assets | $310,453,118 | $351,127,028 | ▲ $40,673,910 |
| Other Assets Total | $33,608,070 | $41,614,721 | ▲ $8,006,651 |
| Liabilities | |||
| Other Liabilities | $87,968,420 | $111,455,141 | ▲ $23,486,721 |
| Accounts Payable and Accrued Expenses | $11,909,063 | $12,766,887 | ▲ $857,824 |
| Grants Payable | $332,533 | - | - |
| Deferred Revenue | $112,637 | $192,037 | ▲ $79,400 |
| Total Liabilities | $100,322,653 | $124,414,065 | ▲ $24,091,412 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $208,584,647 | $225,362,145 | ▲ $16,777,498 |
| Net Assets With Donor Restrictions | $1,545,818 | $1,350,818 | ▼ $195,000 |
| Total Net Assets Fund Balance | $210,130,465 | $226,712,963 | ▲ $16,582,498 |
| Total Liabilities and Net Assets / Fund Balance | $310,453,118 | $351,127,028 | ▲ $40,673,910 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Equipment | $96,132 | $1,403,523 | $1,499,655 |
| Other Assets Org | $92,146 | - | - |
| Other Securities | $97,805,098 | - | - |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2023 | $1,545,818 | $402,000 | - | $597,000 | $1,350,818 |
| 2022 | $1,438,818 | $536,000 | - | $429,000 | $1,545,818 |
| 2021 | $312,818 | $1,467,345 | - | $341,345 | $1,438,818 |
| 2020 | $178,818 | $14,005,776 | - | $13,871,776 | $312,818 |
| 2019 | $111,817 | $2,575,063 | - | $2,508,062 | $178,818 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Joseph P Cravero MD | President/Treasurer | FT | $798,535 | $455,894 | $1,254,429 |
| Adrienne Randolph MD | Physician | FT | $445,000 | $620,813 | $1,065,813 |
| Paul R Hickey MD | Physician | FT | $885,897 | $179,916 | $1,065,813 |
| John Fiadjoe MD | Clerk | FT | $579,618 | $453,712 | $1,033,330 |
| Jeffrey Burns MD | Director | FT | $725,700 | $287,132 | $1,012,832 |
| James Dinardo MD | Physician | FT | $602,405 | $403,652 | $1,006,057 |
| Christine Greco MD | Director | FT | $432,866 | $556,043 | $988,909 |
| Pete Kovatsis MD | Physician | FT | $409,520 | $558,405 | $967,925 |
| Constance Houck MD | Physician | FT | $431,102 | $506,416 | $937,518 |
| Kirsten C Odegard MD | Director | FT | $399,422 | $537,153 | $936,575 |
| Walid Alrayashi MD | Physician | - | $333,234 | $563,832 | $897,066 |
| - | Former Officer | FT | $721,920 | $120,642 | $842,562 |
| Sulpicio Soriano MD | Former Officer | FT | $517,506 | $325,056 | $842,562 |
| Viviane G Nasr MD | Director | FT | $486,500 | $338,680 | $825,180 |
| Mary Landrigan-Ossar MD | Director | FT | $446,525 | $366,050 | $812,575 |
| Sally Vitali MD | Director | FT | $329,740 | $396,439 | $726,179 |
| Michael L McManus MD | Director | FT | $471,534 | $177,423 | $648,957 |
| Cynthia Tung MD | Director | FT | $374,318 | $224,234 | $598,552 |
| Anjali Koka MD | Director | FT | $324,738 | $240,665 | $565,403 |
| Jue Wang MD | Director | FT | $260,621 | $293,323 | $553,944 |
| Paul R Hickey MD | Former Officer | - | $150,300 | $194,186 | $344,486 |
| Nina Deutsch MD | Director | FT | $175,333 | $63,707 | $239,040 |
| Name | Title |
|---|---|
| Walid Alrayashi MD | Institutional Trustee |
| Contractor | Services | Location | Compensation |
|---|---|---|---|
| CHMC Surgical Foundation Inc | Physician services | 300 Longwood Avenue, Boston, MA 02115 | $624,779 |
| 3EDGE Asset Management | Investment Advisor | 225 Franklin Street 26th Floor, Boston, MA 02110 | $491,344 |
| The Wagner Law Group | Legal services | 99 Summer Street, Boston, MA 02108 | $215,500 |
| CapFinancial Partners LLC | Pension Advisor | 4208 Six Fords Road Suite 1700, Raleigh, NC 27609 | $166,387 |
| Line Item | Amount |
|---|---|
| Salaries, Compensation, and Employee Benefits | $127,789,241 |
| Other Expenses | $23,151,252 |
| Grants and Similar Amounts Paid | $1,591,470 |
| Professional Fundraising Fees | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $73,541,975 | $3,879,328 | - | $77,421,303 |
| Pension Plan Contributions | $17,588,382 | $543,971 | - | $18,132,353 |
| Other Employee Benefits | $17,144,282 | $237,225 | - | $17,381,507 |
| Current Officers, Directors, Trustees, and Key Employees | $11,929,440 | - | - | $11,929,440 |
| Payroll Taxes | $2,889,631 | $35,007 | - | $2,924,638 |
| All Other Expenses | $2,873,367 | - | - | $2,873,367 |
| Other Expenses | $2,621,493 | - | - | $2,621,493 |
| Fees for Services Other | $2,173,768 | - | - | $2,173,768 |
| Grants to Domestic Orgs | $1,591,470 | - | - | $1,591,470 |
| Office Expenses | $1,171,470 | $252,845 | - | $1,424,315 |
| Insurance | $531,682 | $43,903 | - | $575,585 |
| Fees for Service Investment Mgmnt Fees | - | $501,472 | - | $501,472 |
| Occupancy | $497,080 | - | - | $497,080 |
| Fees for Services Legal | - | $417,105 | - | $417,105 |
| Conferences and Meetings | $375,382 | - | - | $375,382 |
| Fees for Services Management | $71,690 | $95,107 | - | $166,797 |
| Depreciation Depletion | $123,583 | - | - | $123,583 |
| Total Functional Expenses | $146,526,000 | $6,005,963 | $0 | $152,531,963 |
| Line Item | Amount |
|---|---|
| Total Expenses per Form 990 | $152,531,963 |
| Expenses per Audited Statements | $152,030,491 |
| Total Expenses per Audited Statements | $152,030,491 |
| Expenses Not Reported on Financial Statements | $501,472 |
| Expenses Not Reported on Form 990 | $0 |
| Recipient | Location | Category | Purpose | Amount |
|---|---|---|---|---|
| Boston Children's Hospital | Boston, MA | 501(c)3 | General Support | $1,577,770 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
| Line Item | Beginning | End | Change |
|---|---|---|---|
| Receivables from Officers, Directors, Trustees, and Key Employees | $1,016,667 | $916,667 | ▼ $100,000 |
| Liability | Amount |
|---|---|
| Accrued education plan obligation | $33,427,540 |
| Due to Medical Center | $17,673,684 |
| Accrued SERP obligation | $16,097,448 |
| Due to Boston Children's Hospital | $11,780,234 |
| Accrued earned time pay | $10,856,220 |
| Accrued deferred compensation 457(b) plan | $9,492,248 |
| Accrued professional liability | $6,964,579 |
| Accrued money purchase plan | $2,364,078 |
| Due to Harvard - Anesthesia Med Education | $1,774,276 |
| Due to Physicians Organization at Children's Hospital, Inc. | $997,686 |
| Due to Children's Hospital Pediatric Associates, Inc. | $18,898 |
| Due to Boston Heart Children's Hospital | $8,250 |
“A majority of CHMC Anesthesia Foundation, Inc.'s (the Foundation's) board members are physicians who are not independent from the Foundation. However, the Foundation is part of an integrated delivery system with Boston Children's Hospital (the Hospital) which does have a community board. The Foundation was organized in 1980. At that time, the board was composed entirely of physicians, a board structure that was approved by the Internal Revenue Service. The Foundation has since adjusted the board structure to make it more responsive to the Hospital by adding the Physicians Organization at Children's Hospital, Inc. (the PO) as a member. See Schedule O, Part VI, Questions 3, 6, 7b, and 12 for more details on the PO's rights.”
“The Physicians Organization at Children's Hospital, Inc. (the PO) is a Class "C" member of CHMC Anesthesia Foundation, Inc. (the Foundation). The PO is responsible for providing management services to the Foundation. The PO has the power to approve the independent auditor and legal counsel of the Foundation from a list of firms mutually agreed to by the PO and the Foundation. The PO also has the right to review the annual budgets and the right to review and approve by-law changes of the Foundation. Lastly, Boston Children's Hospital has the right to review for compliance with applicable law, the general terms of and any modification to physician compensation and benefit plans for all physician employees of the Foundation.”
“CHMC Anesthesia Foundation, Inc. (the Foundation) has three classes of members. The Chief of the Department of Anesthesiology (the Department) of Boston Children's Hospital (the Hospital) is the Class "A" member. Each member (other than the Chief) who holds a medical staff appointment from the Hospital and a full-time faculty appointment under the auspices of the Anesthesiologist-in-Chief from Harvard Medical School (Harvard) is a Class "B" member of the Foundation. The Physicians Organization at Children's Hospital, Inc. (the PO) is a Class "C" member of the Foundation.”
“According to the Articles of Organization, the Chief of the Department of Anesthesiology (the Department) of Boston Children's Hospital (the Hospital) is the Class "A" member of CHMC Anesthesia Foundation, Inc. (the Foundation). Each person who holds a medical staff appointment from the Hospital and a full-time faculty appointment under the auspices of the Anesthesiologist-in-Chief from Harvard Medical School (Harvard) is a Class "B" member. The Class "A and "B" members of the Foundation elect the Board of Directors presented by the Executive Committee at their annual meeting. Each member is entitled to one vote per question at any meeting of the members.”
“The Physicians Organization at Children's Hospital, Inc. (the PO) is a Class "C" member of CHMC Anesthesia Foundation, Inc. (the Foundation). The PO is responsible for providing management services to the Foundation. The PO has the power to approve the independent auditor and legal counsel of the Foundation from a list of firms mutually agreed to by the PO and the Foundation. The PO also has the right to review the annual budgets and the right to review and approve by-law changes of the Foundation. Lastly, Boston Children's Hospital has the right to review for compliance with applicable laws, the general terms of and any modification to physician compensation and benefit plans for all physician employees of the Foundation. As a Class "C" member of the Foundation, the PO attends the Foundation's annual meeting.”
“The detailed review will be conducted by the President/Treasurer of the Foundation, Joseph P. Cravero, MD; the Senior Director of Foundation Financial Operations & Strategy Planning, Stacey Conrad; and the Director of Finance, Jaronid Jimenez. A copy of the Form 990 will be provided to the board prior to filing. The Physicians Organization at Children's Hospital, Inc. will review the Form 990 with the board members. The detailed review will be conducted before filing the return with the Internal Revenue Service.”
“The Physicians Organization at Children's Hospital, Inc. (the PO) and Boston Children's Hospital (the Hospital) administer an annual conflict of interest disclosure process to all of its member Foundations, which asks physicians (officers, top management, and highly compensated employees) and selected Foundation staff to disclose potential conflicts. A disclosure statement will be circulated annually to members of the PO. The audit committee shall determine those individuals (including medical staff members) who shall be required to complete the disclosure statement. The audit committee, at its discretion, may either: 1) refer any or all disclosure statements to the Board of Directors; 2) appoint an ad hoc committee to review and resolve any conflict of interest issues; or 3) review and resolve any conflict of interest issues personally or through a designee(s). Any person not receiving a disclosure statement nevertheless has an affirmative obligation to disclose to the PO President, PO General Counsel, or his/her supervisor whenever he/she believes he/she has or may have a conflict of interest. Similarly, each person completing a disclosure statement has an affirmative obligation to update the statement any time circumstances change and/or he/she believes that a conflict of interest may exist. In the event a conflict of interest is found to exist, the Foundation prohibits the member from voting on any matter to which the conflict relates or otherwise influence the voting on such matter.”
“Faculty compensation must comply with the Boston Children's Hospital (the Hospital) Physician Compensation Guidelines. These guidelines are developed in consultation with an independent external compensation consulting firm and are approved by the independent Compensation Committee of the Board of Children's Medical Center Corporation and the Hospital. The guidelines set the maximum compensation limits based on a peer group analysis for the Foundation. The maximum compensation limits are based on pediatric specialty, sub-specialty, academic rank and include productivity adjustments. Any proposed compensation that exceeds the limits must be prospectively approved by the independent Compensation Committee of the Board of the Hospital. Annual compensation for individual faculty members is set by the President of CHMC Anesthesia Foundation, Inc. (the Foundation), reviewed and approved by the Foundation in accordance with the Foundation's compensation policies and procedures. The Foundation's President's compensation is reviewed and approved annually on a prospective basis by the Boston Children's Hospital President/Chief Executive Officer.”
“The Foundation maintains all financial statements, conflict of interest policies, and governing documents at its main office at 300 Longwood Avenue, Boston, MA 02115. The documents are available upon request.”
“Pension adjustment 7,461,373. Net assets transfer to affiliate -26,510,526.”
“The audit process and scope has not changed from the prior year.”
“The restricted funds represent donations that were given for physician recruitment. The use of these funds was restricted by the donor.”
“The Foundation is a tax-exempt corporation as described in Section 501(c)(3) of the Internal Revenue Code (the Code), and is exempt from federal income taxes on related income pursuant to Section 501(a) of the Code. In addition, the Foundation qualifies for the charitable contribution deduction under Section 170(b)(1)(a), and has been classified as an organization that is not a private foundation under Section 509(a)(2). Tax-exempt organizations could be required to record an obligation for income taxes as the result of a tax position they have historically taken on various tax exposure items, including unrelated business income or tax status. Management of the Foundation has evaluated the positions taken on the Foundation's filed tax returns and has concluded that no uncertain income tax positions exist at September 30, 2024.”
“Pension adjustment 7,461,373.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 11909063 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 12766887 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 15010321 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 13590142 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | The Foundation provides medical research and educational services to Boston (see Schedule O) Children's Hospital and Harvard Medical School. The Foundation also provides care for patients in Massachusetts regardless of their ability to pay, as well as providing and supporting hospital and community based services that are either unavailable or limited elsewhere in the community. |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 2873367 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 2873367 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | Joseph P Cravero MD |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 6173556457 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 300 Longwood Avenue Bader 3 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | Boston |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 02115 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 1396015 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 3206438 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 4 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 11929440 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 11929440 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 1 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 375382 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 375382 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 1 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 624779 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 1 | 491344 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 2 | 215500 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 3 | 166387 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 300 Longwood Avenue |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 1 | 225 Franklin Street 26th Floor |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 2 | 99 Summer Street |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 3 | 4208 Six Fords Road Suite 1700 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | Boston |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 1 | Boston |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 2 | Boston |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 3 | Raleigh |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 1 | MA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 2 | MA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 3 | NC |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 02115 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 1 | 02110 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 2 | 02108 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 3 | 27609 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | CHMC Surgical Foundation Inc |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 1 | 3EDGE Asset Management |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 2 | The Wagner Law Group |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 3 | CapFinancial Partners LLC |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | Physician services |
| IRS990/ContractorCompensationGrp/ServicesDesc | 1 | Investment Advisor |
| IRS990/ContractorCompensationGrp/ServicesDesc | 2 | Legal services |
| IRS990/ContractorCompensationGrp/ServicesDesc | 3 | Pension Advisor |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 402000 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 1591470 |
| IRS990/CYInvestmentIncomeAmt | 0 | 6190091 |
| IRS990/CYOtherExpensesAmt | 0 | 23151252 |
| IRS990/CYOtherRevenueAmt | 0 | 3185954 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 150007511 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 7253593 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 127789241 |
| IRS990/CYTotalExpensesAmt | 0 | 152531963 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 159785556 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 1 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 112637 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 192037 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 1 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 123583 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 123583 |
| IRS990/Desc | 0 | The CHMC Anesthesia Foundation, Inc. (the Foundation) provides anesthesia and intensive care services to the patients of Boston Children's Hospital and at satellite locations. The Foundation may charge for patient care and other medical services, where any net income generated is used exclusively for the charitable, scientific, and educational purposes for which the Foundation was created. The Foundation also provides care for patients in need of anesthesia and intensive care services, regardless of their ability to pay, as well as providing and supporting hospital and community based services that are either unavailable or limited elsewhere in the community. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 1545818 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 1350818 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 1 |
| IRS990/ElectionOfBoardMembersInd | 0 | 1 |
| IRS990/EmployeeCnt | 0 | 173 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 143595480 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 417105 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 417105 |
| IRS990/FeesForServicesManagementGrp/ManagementAndGeneralAmt | 0 | 95107 |
| IRS990/FeesForServicesManagementGrp/ProgramServicesAmt | 0 | 71690 |
| IRS990/FeesForServicesManagementGrp/TotalAmt | 0 | 166797 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 2173768 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 2173768 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 501472 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 501472 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 6.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 3 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 4 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 5 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 6 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 7 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 8 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 9 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 10 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 11 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 12 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 13 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 14 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 15 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 16 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 17 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 18 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 19 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 20 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 54.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 59.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 60.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 60.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 60.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 60.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 60.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 60.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 60.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 60.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 60.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 60.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 60.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 60.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 60.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 60.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 60.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 18 | 60.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 19 | 36.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 20 | 60.00 |
| IRS990/Form990PartVIISectionAGrp/BusinessName/BusinessNameLine1Txt | 0 | Physicians Org at CH Inc |
| IRS990/Form990PartVIISectionAGrp/FormerOfcrDirectorTrusteeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/FormerOfcrDirectorTrusteeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 10 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 11 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 12 | X |
| IRS990/Form990PartVIISectionAGrp/InstitutionalTrusteeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 148128 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 114762 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 147183 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 124147 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 138666 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 184653 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 162878 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 180479 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 177867 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 114762 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 101619 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 138531 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 17655 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 138297 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 172805 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 114762 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 114762 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 18 | 179916 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 19 | 90350 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 20 | 120642 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | Joseph P Cravero MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | Jeffrey Burns MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | John Fiadjoe MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | Jue Wang MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | Anjali Koka MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | Kirsten C Odegard MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | Sally Vitali MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | Mary Landrigan-Ossar MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | Christine Greco MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | Michael L McManus MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | Cynthia Tung MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | Viviane G Nasr MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | Nina Deutsch MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | Walid Alrayashi MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | Pete Kovatsis MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | Constance Houck MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | James Dinardo MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | Adrienne Randolph MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 18 | Paul R Hickey MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 19 | Sulpicio Soriano MD |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 1106301 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 898070 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 886147 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 429797 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 426737 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 751922 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 563301 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 632096 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 811042 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 534195 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 496933 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 686649 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 221385 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 758769 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 15 | 795120 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 822756 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 891295 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 18 | 885897 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 19 | 254136 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 20 | 721920 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 18 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 19 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 20 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | President/Treasurer |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | Clerk |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | Institutional Trustee |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | Physician |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | Physician |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | Physician |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | Physician |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 18 | Physician |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 19 | Former Officer |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 20 | Former Officer |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/Form990TFiledInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1980 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 1 |
| IRS990/FSAuditedBasisGrp/ConsolidatedBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 1251530 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 13 |
| IRS990/GrantAmt | 0 | 1591470 |
| IRS990/GrantsPayableGrp/BOYAmt | 0 | 332533 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 1591470 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 1591470 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 1 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 10000000 |
| IRS990/GrossReceiptsAmt | 0 | 168534026 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 0 |
| IRS990/IndependentVotingMemberCnt | 0 | 0 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 162 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIInd | 0 | X |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 43903 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 531682 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 575585 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 4961843 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 4938561 |
| IRS990/InvestmentIncomeGrp/UnrelatedBusinessRevenueAmt | 0 | -23282 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsOtherSecuritiesGrp/BOYAmt | 0 | 85063186 |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 97805098 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 146466521 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 162342905 |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 1403523 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 219715 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 96132 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 1499655 |
| IRS990/LegalDomicileStateCd | 0 | MA |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 8748470 |
| IRS990/LoanOutstandingInd | 0 | 1 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 1 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | The Foundation operates the Department of Anesthesia at Boston Children's Hospital and in communities throughout greater Boston. The physicians and CRNAs of the Foundation provide anesthesia services to patients at the Hospital and perform anesthesia (see Schedule O) research activities as well as lectures and publish related articles. The Foundation also provides care for patients in need of anesthesiology services regardless of their ability to pay. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 210130465 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 226712963 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 1251530 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 1251530 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 28378058 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 208584647 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 225362145 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 497080 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 497080 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 252845 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 1171470 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 1424315 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
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| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 41614721 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | -19049153 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 237225 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 17144282 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 17381507 |
| IRS990/OtherExpensesGrp/Desc | 0 | Administrative fee |
| IRS990/OtherExpensesGrp/Desc | 1 | Coordinated Specialty P |
| IRS990/OtherExpensesGrp/Desc | 2 | Research and education |
| IRS990/OtherExpensesGrp/Desc | 3 | PO management services |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 4881773 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 3677523 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 2842009 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 2621493 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 4881773 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 3677523 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 2842009 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 2621493 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 87968420 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 111455141 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | Non-Operating pension gains |
| IRS990/OtherRevenueMiscGrp/ExclusionAmt | 0 | 3185954 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 3185954 |
| IRS990/OtherRevenueTotalAmt | 0 | 3185954 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 3879328 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 73541975 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 77421303 |
| IRS990/OthNotesLoansReceivableNetGrp/BOYAmt | 0 | 3212640 |
| IRS990/OthNotesLoansReceivableNetGrp/EOYAmt | 0 | 4122527 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 35007 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 2889631 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 2924638 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 543971 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 17588382 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 18132353 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
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