Liabilities / Assets
50th percentile
Higher debt load relative to assets than 50% of similar nonprofits.
EIN 11-2734849 • 501(c)3 • Durham, NC
Profile
The national mps society exists to cure, support, and advocate for mucopolysaccharidosis (mps) and mucolipidosis(ml).
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
50th percentile
Higher debt load relative to assets than 50% of similar nonprofits.
Liabilities / Revenue
58th percentile
Higher debt load relative to revenue than 58% of similar nonprofits.
Net Margin
15th percentile
Higher net margin than 15% of similar nonprofits.
Top Officer Pay
Score unavailable
No filing with officer rows is available for this organization yet.
Asset Growth
26th percentile
Faster asset growth than 26% of similar nonprofits.
Revenue Growth
23rd percentile
Faster revenue growth than 23% of similar nonprofits.
Assets
Down$3,874,160
Down $139,749 (-3.5%) from 2023
Liabilities
Down$260,484
Down $25,607 (-9.0%) from 2023
Net Assets
Down$3,613,676
Down $114,142 (-3.1%) from 2023
Revenue
Down$2,108,438
Down $188,221 (-8.2%) from 2023
Expenses
Down$2,506,869
Down $251,392 (-9.1%) from 2023
Net Income
Up-$398,431
Up $63,171 (+14%) from 2023
Most recent year
2024 • Form 990Detailed filing. Detailed filing data is available for this year.
The national mps society exists to cure, support, and advocate for mucopolysacchariddosis (mps) and mucolipidosis (ml).
The national mps society exists to cure, support, and advocate for mucopolysaccharidosis (mps) and mucolipidosis (ml).
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Investments in Publicly Traded Securities | $3,114,291 | $3,149,341 | ▲ $35,050 |
| Savings and Temporary Cash Investments | $460,922 | $271,284 | ▼ $189,638 |
| Cash and Non-Interest-Bearing Accounts | $169,899 | $155,901 | ▼ $13,998 |
| Prepaid Expenses and Deferred Charges | $34,545 | $64,269 | ▲ $29,724 |
| Pledges and Grants Receivable | - | $56,450 | - |
| Land, Buildings, and Equipment, Net | $37,432 | $30,302 | ▼ $7,130 |
| Accounts Receivable | $9,971 | $7,631 | ▼ $2,340 |
| Total Assets | $4,013,909 | $3,874,160 | ▼ $139,749 |
| Other Assets Total | $186,849 | $138,982 | ▼ $47,867 |
| Liabilities | |||
| Other Liabilities | $190,787 | $144,011 | ▼ $46,776 |
| Accounts Payable and Accrued Expenses | $45,304 | $66,473 | ▲ $21,169 |
| Grants Payable | $50,000 | $50,000 | → $0 |
| Total Liabilities | $286,091 | $260,484 | ▼ $25,607 |
| Net Assets / Fund Balance | |||
| Net Assets With Donor Restrictions | $2,062,373 | $2,350,136 | ▲ $287,763 |
| Net Assets Without Donor Restrictions | $1,665,445 | $1,263,540 | ▼ $401,905 |
| Total Net Assets Fund Balance | $3,727,818 | $3,613,676 | ▼ $114,142 |
| Total Liabilities and Net Assets / Fund Balance | $4,013,909 | $3,874,160 | ▼ $139,749 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Equipment | $7,087 | $35,471 | $42,558 |
| Other Land Buildings | $23,215 | $16,301 | $39,516 |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2024 | $1,423,581 | $500 | ▲ $219,087 | $49,048 | $1,578,914 |
| 2023 | $1,297,269 | - | ▲ $186,665 | $47,209 | $1,423,581 |
| 2022 | $1,554,867 | - | ▼ $244,235 | - | $1,297,269 |
| 2021 | $1,360,954 | - | ▲ $208,125 | - | $1,554,867 |
| 2020 | $1,315,350 | - | ▲ $58,079 | - | $1,360,954 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Matthew Ellinwood | CSO | FT | $161,019 | $11,011 | $172,030 |
| Terri Klein | President & | FT | $137,445 | $4,123 | $141,568 |
| Name | Title |
|---|---|
| Lisa Todd | Board Chairm |
| Steve Amy Holland | Vice Chairma |
| Carl Kapes | Director |
| Jason Madison | Director |
| Lisa Berry | Director |
| Patricia Espinal | Director |
| Sheri Wise | Director |
| Stacey Montgomery | Director |
| Stephanie Cozine | Director |
| Tamara Cullere | Director |
| Maureen Cote | Secretary |
| Lynn Scott Hopkins | Treasurer |
| Line Item | Amount |
|---|---|
| Other Expenses | $953,484 |
| Salaries, Compensation, and Employee Benefits | $914,468 |
| Grants and Similar Amounts Paid | $638,917 |
| Total Fundraising Expense | $212,345 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $306,815 | $86,881 | $82,135 | $475,831 |
| Conferences and Meetings | $434,900 | - | - | $434,900 |
| Current Officers, Directors, Trustees, and Key Employees | $202,207 | $57,259 | $54,132 | $313,598 |
| Grants to Domestic Orgs | $256,379 | - | - | $256,379 |
| Foreign Grants | $198,700 | - | - | $198,700 |
| Grants to Domestic Individuals | $183,838 | - | - | $183,838 |
| Travel | $115,364 | - | - | $115,364 |
| Fees for Services Other | $47,057 | $21,061 | $11,249 | $79,367 |
| Office Expenses | $33,299 | $21,003 | $19,328 | $73,630 |
| Payroll Taxes | $40,479 | $11,463 | $10,836 | $62,778 |
| Occupancy | $36,618 | $24,412 | - | $61,030 |
| Other Employee Benefits | $30,854 | $8,737 | $8,260 | $47,851 |
| Fees for Services Accounting | - | $39,159 | - | $39,159 |
| Fees for Service Investment Mgmnt Fees | - | $31,207 | - | $31,207 |
| Fees for Services Lobbying | $24,680 | - | - | $24,680 |
| Depreciation Depletion | $10,053 | $6,700 | - | $16,753 |
| Pension Plan Contributions | $9,292 | $2,631 | $2,487 | $14,410 |
| Insurance | $4,236 | $2,822 | - | $7,058 |
| Other Expenses | $5,620 | $3,143 | $23,918 | $5,620 |
| Total Functional Expenses | $1,978,046 | $316,478 | $212,345 | $2,506,869 |
| Line Item | Amount |
|---|---|
| Total Expenses per Audited Statements | $2,514,416 |
| Total Expenses per Form 990 | $2,506,869 |
| Expenses per Audited Statements | $2,475,662 |
| Expenses Not Reported on Form 990 | $38,754 |
| Expenses Not Reported on Financial Statements | $31,207 |
| Recipient | Location | Category | Purpose | Amount |
|---|---|---|---|---|
| Regents of the Univ of California | La Jolla, CA | 501c3 | Medical Research | $100,000 |
| Washington University | St Louis, MO | 501c3 | Medical Research | $100,000 |
| Greenwood Genetic Center | Greenwood, SC | 501c3 | Medical Research | $50,000 |
| Trustees of University of Pa | Philadelphia, PA | 501c3 | Medical Research | $6,379 |
| Region | Activity | Services | Offices | Employees | Spending |
|---|---|---|---|---|---|
| Europe | Grantmaking | Medical Research | - | - | $150,000 |
| East Asia and the Pacific | Grantmaking | Medical Research | - | - | $48,700 |
| Line Item | Amount |
|---|---|
| Fundraising Gross Income | $77,709 |
| Fundraising Direct Expenses | $72,610 |
| Professional Fundraising Fees | $0 |
| Event | Gross Receipts | Gross Revenue | Direct Expenses | Net Income |
|---|---|---|---|---|
| Annual Fund | $367,887 | - | $6,294 | - |
| HOLLAND'S HOPE | $73,469 | - | - | - |
| Total Events | $822,737 | $77,709 | $72,610 | $5,099 |
| Liability | Amount |
|---|---|
| Operating Lease Liability | $144,011 |
“Steve holland, vice chairman and amy holland, director have a family relationship. Scott hopkins, director and lynn hopkins, treasurer have a family relationship. Each of these family relationships constitutes one director vote out of 12 director votes.”
“National mps society's by-laws were amended april 20,2024”
“As a not-for-profit corporation, we have members.”
“Prior to filing the return, electronic copies of form 990 are sent to all members of the executive committee as well as to all members of the governing body for their review. After the form 990 has been reviewed, all members of the governing body will discuss and approve the irs form 990.”
“The conflict of interest policy is a self-compliance process. All officers, directors, and employees sign the conflict of interest policy on an annual basis.”
“In determining the compensation for the ceo/president, the governance committee performs an annual review. Following the governance committee review, the executive committee and board of directors review and deliberate regarding the compensation.”
“In determining the compensation for the other officers and key employees, the ceo/president performs an annual review. Following the ceo's review, the governance committee and board of directors review and deliberate regarding compensation.”
“Maryland, maine, michigan, minnesota, mississippi, north carolina, north dakota, new hampshire, new jersey, new mexico, nevada, new york, ohio, oklahoma, oregon, pennsylvania, rhode island, south carolina, tennessee, utah, virginia, washington, wisconsin, west virginia”
“Donations are listed in the online publication quarterly. The budget is published shortly after it is approved. The organization's annual report is mailed to members and donors once a year, and the irs form 990 is available on the website. The organization's by-laws are available online. Information is also available on the charity navigator website. Documents are also available upon request.”
“The national mps society provides comprehensive support to families affected by mps and ml through its family support and pathways programs. At the time of diagnosis and beyond, licensed social workers engage families through in-home visits and ongoing guidance, helping them navigate the complex challenges of living with a rare disease. The society also offers critical financial assistance, including funding for medical equipment, educational and bereavement scholarships, extended hospital stays, medical travel, and conference participation. These services ensure families receive compassionate, practical support. In the crossing paths program expands equitable access to education, clinical studies, and critical resources for families affected by mps and ml in underserved inner-city and rural communities. Through outreach, partnerships, and tailored support, the program bridges geographic and socioeconomic barriers, ensuring families have the knowledge and opportunities to participate in clinical research and receive specialized care.”
“Fundraising expenses netted with revenue 38,754 fundraising expenses netted with revenue -38,754”
“To provide a permanent source of funding for family support, operations and adminstrative overhead expenses.”
“The society evaluates any uncertain tax positions. Accordingly, the societys policy is to record a liability for any tax position taken by the society, including any related interest and penalties, when it is more likely than not the position of management with respect to a transaction or class of transactions will be overturned by a taxing authority upon examination. Management does not believe any significant income tax uncertainties exist as of december 31, 2024 and 2023.”
“Fundraising expenses netted with revenue 38,754”
“Fundraising expenses netted with revenue 38,754”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
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| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 66473 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 9971 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 7631 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | THE NATIONAL MPS SOCIETY EXISTS TO CURE, SUPPORT, AND ADVOCATE FOR MUCOPOLYSACCHARIDOSIS (MPS) AND MUCOLIPIDOSIS (ML). |
| IRS990/AllOtherContributionsAmt | 0 | 773710 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/AuditCommitteeInd | 0 | true |
| IRS990/BackupWthldComplianceInd | 0 | true |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | ANGELA GUAJARDO |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 9198060101 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | PO BOX 14686 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | DURHAM |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | NC |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 27709 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
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| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 169899 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 155901 |
| IRS990/ChangeToOrgDocumentsInd | 0 | true |
| IRS990/CollectionsOfArtInd | 0 | false |
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| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 57259 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 202207 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 313598 |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | true |
| IRS990/CompensationProcessOtherInd | 0 | true |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 434900 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 434900 |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/ContriRptFundraisingEventAmt | 0 | 745028 |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 1525957 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 638917 |
| IRS990/CYInvestmentIncomeAmt | 0 | 162666 |
| IRS990/CYOtherExpensesAmt | 0 | 953484 |
| IRS990/CYOtherRevenueAmt | 0 | 5099 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 414716 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -398431 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 914468 |
| IRS990/CYTotalExpensesAmt | 0 | 2506869 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 212345 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 2108438 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 6700 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 10053 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 16753 |
| IRS990/Desc | 0 | THE SOCIETY FUNDED APPROXIMATELY 8 RESEARCH GRANTS DURING 2024 FOR THE PURPOSE OF FINDING TREATMENTS AND CURES FOR MPS AND RELATED DISEASES. THE CHIEF SCIENTIFIC OFFICER (CSO) LEADS THE SOCIETYS STRATEGIC DIRECTION IN RESEARCH, NEWBORN SCREENING, AND EMERGING SCIENCE INITIATIVES. THIS ROLE OVERSEES THE DEVELOPMENT AND FUNDING OF RESEARCH PROGRAMS TO ADDRESS UNMET MEDICAL NEEDS IN MPS AND ML DISORDERS, GUIDES ADVOCACY FOR NEWBORN SCREENING EXPANSION, AND EVALUATES INNOVATIVE SCIENTIFIC ADVANCEMENTS. THE CSO COLLABORATES WITH ACADEMIC, CLINICAL, AND INDUSTRY PARTNERS TO DRIVE PROGRESS IN TREATMENT AND DIAGNOSIS, AND ENSURES ALIGNMENT WITH THE ORGANIZATIONS MISSION TO SUPPORT FAMILIES AND ACCELERATE CURES. |
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| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | true |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 2062373 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 2350136 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | true |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 12 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 674216 |
| IRS990/FamilyOrBusinessRlnInd | 0 | true |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FederatedCampaignsAmt | 0 | 3319 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 39159 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 39159 |
| IRS990/FeesForServicesLobbyingGrp/ProgramServicesAmt | 0 | 24680 |
| IRS990/FeesForServicesLobbyingGrp/TotalAmt | 0 | 24680 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 11249 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 21061 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 47057 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 79367 |
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| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 31207 |
| IRS990/ForeignActivitiesInd | 0 | true |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignGrantsGrp/ProgramServicesAmt | 0 | 198700 |
| IRS990/ForeignGrantsGrp/TotalAmt | 0 | 198700 |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
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| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 55.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 1.00 |
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| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 1.00 |
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| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 1.00 |
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| 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 |
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| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 10 | X |
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| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | LYNN SCOTT HOPKINS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | MAUREEN COTE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | LISA TODD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | STEVE AMY HOLLAND |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | STEPHANIE COZINE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | TAMARA CULLERE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | LISA BERRY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | CARL KAPES |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | PATRICIA ESPINAL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | JASON MADISON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | STACEY MONTGOMERY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | SHERI WISE |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 0 |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 0 |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 7 | 0 |
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| 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/TitleTxt | 0 | CSO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | PRESIDENT & |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | BOARD CHAIRM |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | VICE CHAIRMA |
| 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 | DIRECTOR |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 1985 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | true |
| IRS990/FundraisingActivitiesInd | 0 | true |
| IRS990/FundraisingAmt | 0 | 745028 |
| IRS990/FundraisingDirectExpensesAmt | 0 | 72610 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 77709 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 69105 |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 12 |
| IRS990/GrantAmt | 0 | 455079 |
| IRS990/GrantsPayableGrp/BOYAmt | 0 | 50000 |
| IRS990/GrantsPayableGrp/EOYAmt | 0 | 50000 |
| IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt | 0 | 183838 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 183838 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 256379 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 256379 |
| IRS990/GrantsToIndividualsInd | 0 | true |
| IRS990/GrantsToOrganizationsInd | 0 | true |
| IRS990/GrantToRelatedPersonInd | 0 | true |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 1255405 |
| IRS990/GrossReceiptsAmt | 0 | 3367348 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | true |
| IRS990/IndependentAuditFinclStmtInd | 0 | true |
| IRS990/IndependentVotingMemberCnt | 0 | 12 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 2 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIInd | 0 | X |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 2822 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 4236 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 7058 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 93561 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 93561 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 3114291 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 3149341 |
| IRS990/IRPDocumentCnt | 0 | 19 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 51772 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 37432 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 30302 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 82074 |
| IRS990/LegalDomicileStateCd | 0 | NY |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 1186300 |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | true |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembershipDuesAmt | 0 | 3900 |
| IRS990/MembersOrStockholdersInd | 0 | true |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | THE NATIONAL MPS SOCIETY EXISTS TO CURE, SUPPORT, AND ADVOCATE FOR MUCOPOLYSACCHARIDOSIS (MPS) AND MUCOLIPIDOSIS (ML). |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | true |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 3727818 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 3613676 |
| IRS990/NetGainOrLossInvestmentsGrp/RelatedOrExemptFuncIncomeAmt | 0 | 69105 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 69105 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 5099 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 284289 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 1665445 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 1263540 |
| IRS990/NoncashContributionsAmt | 0 | 10363 |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 24412 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 36618 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 61030 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 19328 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 21003 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 33299 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 73630 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 186849 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 138982 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 8260 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 8737 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 30854 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 47851 |
| IRS990/OtherExpensesGrp/Desc | 0 | DUES AND SUBSCRIPTIONS |
| IRS990/OtherExpensesGrp/Desc | 1 | SPONSORED EXPENSES |
| IRS990/OtherExpensesGrp/Desc | 2 | BEREAVEMENT |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 23918 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 3143 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 25622 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 12033 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 5620 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 52683 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 12033 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 5620 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 190787 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 144011 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 82135 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 86881 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 306815 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 475831 |
| IRS990/OwnWebsiteInd | 0 | X |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 10836 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 11463 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 40479 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 62778 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 2487 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 2631 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 9292 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 14410 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 56450 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 34545 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 64269 |
| IRS990/PrincipalOfficerNm | 0 | TERRI KLEIN |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | CONFERENCE INCOME |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 414716 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 414716 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | THE NATIONAL MPS SOCIETY PROVIDES COMPREHENSIVE SUPPORT TO FAMILIES AFFECTED BY MPS AND ML THROUGH ITS FAMILY SUPPORT AND PATHWAYS PROGRAMS. AT THE TIME OF DIAGNOSIS AND BEYOND, LICENSED SOCIAL WORKERS ENGAGE FAMILIES THROUGH IN-HOME VISITS AND ONGOING GUIDANCE, HELPING THEM NAVIGATE THE COMPLEX CHALLENGES OF LIVING WITH A RARE DISEASE. THE SOCIETY ALSO OFFERS CRITICAL FINANCIAL ASSISTANCE, INCLUDING FUNDING FOR MEDICAL EQUIPMENT, EDUCATIONAL AND BEREAVEMENT SCHOLARSHIPS, EXTENDED HOSPITAL STAYS, MEDICAL TRAVEL, AND CONFERENCE PARTICIPATION. THESE SERVICES ENSURE FAMILIES RECEIVE COMPASSIONATE, PRACTICAL SUPPORT. IN THE CROSSING PATHS PROGRAM EXPANDS EQUITABLE ACCESS TO EDUCATION, CLINICAL STUDIES, AND CRITICAL RESOURCES FOR FAMILIES AFFECTED BY MPS AND ML IN UNDERSERVED INNER-CITY AND RURAL COMMUNITIES. THROUGH OUTREACH, PARTNERSHIPS, AND TAILORED SUPPORT, THE PROGRAM BRIDGES GEOGRAPHIC AND SOCIOECONOMIC BARRIERS, ENSURING FAMILIES HAVE THE KNOWLEDGE AND OPPORTUNITIES TO PARTICIPATE IN CLINICAL RESEARCH AND RECEIVE SPECIALIZED CARE. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 499937 |
| IRS990/ProgSrvcAccomActy2Grp/GrantAmt | 0 | 183838 |
| IRS990/ProgSrvcAccomActy3Grp/Desc | 0 | THE SOCIETY PROVIDED INFORMATION SERVICES AND EDUCATIONAL SUPPORT FOR AFFECTED FAMILIES (NEWSLETTERS, SYNDROME BOOKLETS, FACT SHEETS, WEBSITE, DIRECTORY) AND INCREASED PUBLIC AWARENESS OF THESE RARE GENETIC DISEASES (CONFERENCES & ADVOCACY). |
| IRS990/ProgSrvcAccomActy3Grp/ExpenseAmt | 0 | 803893 |
| IRS990/ProgSrvcAccomActy3Grp/RevenueAmt | 0 | 414716 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 1771031 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 565222 |
| IRS990/PYInvestmentIncomeAmt | 0 | 107962 |
| IRS990/PYOtherExpensesAmt | 0 | 1406027 |
| IRS990/PYOtherRevenueAmt | 0 | -34286 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 451952 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | -461602 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 787012 |
| IRS990/PYTotalExpensesAmt | 0 | 2758261 |
| IRS990/PYTotalRevenueAmt | 0 | 2296659 |
| IRS990/QuidProQuoContributionsInd | 0 | false |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | false |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -398431 |
| IRS990/RegularMonitoringEnfrcInd | 0 | true |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | true |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | true |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 460922 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 271284 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 1525957 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 1771031 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1450281 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 1407387 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 1946146 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 8100802 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 93561 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus1YearAmt | 0 | 124182 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 139347 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 108120 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 87499 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 552709 |
| IRS990ScheduleA/GrossReceiptsRltdActivitiesAmt | 0 | 1983187 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.64840 |
| IRS990ScheduleA/PublicSupportPY170Pct | 0 | 0.64210 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 5610597 |
| IRS990ScheduleA/SubstantialContributorsTotAmt | 0 | 2490205 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind | 0 | X |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 1525957 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt | 0 | 1771031 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1450281 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 1407387 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 1946146 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 8100802 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 8653511 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine2 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | RESTRICTED |
| IRS990/ScheduleBRequiredInd | 0 | true |
| IRS990ScheduleC/DirectContactLegislatorsAmt | 0 | 24680 |
| IRS990ScheduleC/DirectContactLegislatorsInd | 0 | true |
| IRS990ScheduleC/GrantsOtherOrganizationsInd | 0 | false |
| IRS990ScheduleC/MailingsMembersInd | 0 | false |
| IRS990ScheduleC/MediaAdvertisementsInd | 0 | false |
| IRS990ScheduleC/NotDescribedSection501c3Ind | 0 | false |
| IRS990ScheduleC/OtherActivitiesInd | 0 | false |
| IRS990ScheduleC/PaidStaffOrManagementInd | 0 | true |
| IRS990ScheduleC/PublicationsOrBroadcastInd | 0 | false |
| IRS990ScheduleC/RalliesDemonstrationsInd | 0 | false |
| IRS990ScheduleC/SupplementalInformationDetail/ExplanationTxt | 0 | DURING 2024, THE US CONGRESS CONSIDERED SEVERAL BILLS THAT WOULD HAVE A POSITIVE IMPACT ON PROVIDING FUNDING FOR RESEARCH INTO A RARE DISEASE AND ON PROVIDING SERVICES FOR THE NEEDS OF CHILDREN WITH DISABILITIES. IN SUPPORT OF THIS LEGISLATION, SOCIETY BOARD MEMBERS CONTACTED LEGISLATIVE OFFICES BY PHONE, MAIL, AND PERSONAL VISITS AND PROVIDED SUCH INFORMATION TO SOCIETY MEMBERS VIA NEWSLETTERS AND EMAIL. SUCH LEGISLATION IS OF DIRECT INTEREST TO THE SOCIETY AND ITS MEMBERS. SUCH ACTIVITIES REPRESENT AN INSUBSTANTIAL PART OF ITS TOTAL EFFORTS. THE TOTAL FUNDS EXPENDED ON THESE ACTIVITIES IS LESS THAN 4% OF THE SOCIETY'S TOTAL REVENUE. |
| IRS990ScheduleC/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | SCHEDULE C, PART II-B, LINE 1 |
| IRS990ScheduleC/TotalLobbyingExpendituresAmt | 0 | 24680 |
| IRS990ScheduleC/VolunteersInd | 0 | true |
| IRS990ScheduleD/BoardDesignatedBalanceEOYPct | 0 | 0.01280 |
| IRS990ScheduleD/CYEndwmtFundGrp/AdministrativeExpensesAmt | 0 | 15206 |
| IRS990ScheduleD/CYEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 1423581 |
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