Civic Intelligence

Frederick a Coller Surgical Society

EIN 23-7369885 • 501(c)6 • Ann Arbor, MI

Profile

To update and reassess expertise in management of surgical diseases and application of basic science and research to surgical patients.

1500 E Medical Ctr/2101 Taubman CtrAnn Arbor, MI 48109-5346

www.collersociety.org

Siviq Scores

Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.

Liabilities / Assets

Score unavailable

No value available

Liabilities-to-assets requires both liabilities and assets on the latest valid filing.

Source year 2025

Liabilities / Revenue

50th percentile

0.00x

Tied with the lowest-debt nonprofits in its peer group.

501(c)6 • <$500k nonprofits • Source year 2025

Net Margin

3rd percentile

-517%

Higher net margin than 3% of similar nonprofits.

501(c)6 • <$500k nonprofits • Source year 2025

Top Officer Pay

79th percentile

$0

Higher top officer pay than 79% of similar nonprofits.

Top officer pay equals 0.0% of source-year revenue.

501(c)6 • <$500k nonprofits • Source year 2025

Asset Growth

7th percentile

-100%

Faster asset growth than 7% of similar nonprofits.

501(c)6 • <$500k nonprofits • Annualized from 2022 to 2025

Revenue Growth

74th percentile

18%

Faster revenue growth than 74% of similar nonprofits.

501(c)6 • <$500k nonprofits • Annualized from 2022 to 2025

Balance Sheet
Liabilities / AssetsScore unavailable

Assets

Down

$0

Down $119,278 (-100%) from 2022

Liabilities

Flat

$0

Flat from 2022

Net Assets

Down

$0

Down $119,278 (-100%) from 2022

Operations
Liabilities / Revenue50th percentileNet Margin3rd percentile

Revenue

Up

$13,627

Up $5,228 (+62%) from 2022

Expenses

Up

$84,018

Up $13,342 (+19%) from 2022

Net Income

Down

-$70,391

Down $8,114 (-13%) from 2022

Trend Graphs

Balance Sheet Trend

Asset Growth7th percentile

Grouped bars show assets, liabilities, and net assets across loaded filings.

$200K$150K$100K$50K$0Assets 2010: $109,252Liabilities 2010: $0Net Assets 2010: $109,2522010Assets 2011: $103,048Liabilities 2011: $0Net Assets 2011: $103,0482011Assets 2012: $123,367Liabilities 2012: $0Net Assets 2012: $123,3672012Assets 2013: $151,608Liabilities 2013: $0Net Assets 2013: $151,6082013Assets 2014: $174,049Liabilities 2014: $0Net Assets 2014: $174,0492014Assets 2015: $127,610Liabilities 2015: $0Net Assets 2015: $127,6102015Assets 2016: $128,646Liabilities 2016: $0Net Assets 2016: $128,6462016Assets 2017: $156,811Liabilities 2017: $0Net Assets 2017: $156,8112017Assets 2019: $146,980Liabilities 2019: $0Net Assets 2019: $146,9802019Assets 2020: $170,493Liabilities 2020: $0Net Assets 2020: $170,4932020Assets 2021: $177,059Liabilities 2021: $0Net Assets 2021: $177,0592021Assets 2022: $119,278Liabilities 2022: $0Net Assets 2022: $119,2782022Assets 2025: $0Liabilities 2025: $0Net Assets 2025: $02025

Highlighted filing

2025

Assets$0
Liabilities$0
Net Assets$0
Open 2025 Filing

Operations Trend

Revenue Growth74th percentile

Revenue, expenses, and net income by year, with the latest filing highlighted.

$150K$100K$50K$0-$50K-$100KExpenses 2010: $96,1402010Expenses 2011: $111,9552011Expenses 2012: $82,7572012Revenue 2013: $121,412Expenses 2013: $93,171Net Income 2013: $28,2412013Revenue 2014: $90,205Expenses 2014: $67,764Net Income 2014: $22,4412014Revenue 2015: $59,604Expenses 2015: $106,043Net Income 2015: -$46,4392015Revenue 2016: $109,937Expenses 2016: $108,901Net Income 2016: $1,0362016Revenue 2017: $102,458Expenses 2017: $74,293Net Income 2017: $28,1652017Revenue 2019: $18,151Expenses 2019: $38,659Net Income 2019: -$20,5082019Revenue 2020: $29,466Expenses 2020: $16,731Net Income 2020: $12,7352020Revenue 2021: $65,417Expenses 2021: $68,802Net Income 2021: -$3,3852021Revenue 2022: $8,399Expenses 2022: $70,676Net Income 2022: -$62,2772022Revenue 2025: $13,627Expenses 2025: $84,018Net Income 2025: -$70,3912025

Highlighted filing

2025

Revenue$13,627
Expenses$84,018
Net Income-$70,391
Open 2025 Filing

Filings

Most recent year

2025 • Form 990Facts available. Structured filing facts are available, but richer extracted sections are limited.

Open filing
Assets
$0
Liabilities
$0
Net assets
$0
Revenue
$13,627
Expenses
$84,018
Net income
-$70,391
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2025Facts available. Structured filing facts are available, but richer extracted sections are limited.$0.00$0.00$0.00$0.14$0.84$0.70
2022Facts available. Structured filing facts are available, but richer extracted sections are limited.$1.19$0.00$1.19$0.08$0.71$0.62
2021XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$1.77$0.00$1.77$0.65$0.69$0.03
2020Facts available. Structured filing facts are available, but richer extracted sections are limited.$1.70$0.00$1.70$0.29$0.17$0.13
2019XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$1.47$0.00$1.47$0.18$0.39$0.21
2017XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$1.57$0.00$1.57$1.02$0.74$0.28
2016XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$1.29$0.00$1.29$1.10$1.09$0.01
2015Detailed filing. Detailed filing data is available for this year.$1.28$0.00$1.28$0.60$1.06$0.46
2014Detailed filing. Detailed filing data is available for this year.$1.74$0.00$1.74$0.90$0.68$0.22
2013Detailed filing. Detailed filing data is available for this year.$1.52$0.00$1.52$1.21$0.93$0.28
2012Facts available. Structured filing facts are available, but richer extracted sections are limited.$1.23$0.00$1.23$0.83
2011Facts available. Structured filing facts are available, but richer extracted sections are limited.$1.03$0.00$1.03$1.12
2010Facts available. Structured filing facts are available, but richer extracted sections are limited.$1.09$0.00$1.09$0.96
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jan 1, 2025 to Dec 31, 2025
Signed
Jan 21, 2026
Return Version
2025v4.0
Gross Receipts
$13,627
Mission and Program Overview

Mission

To update and reassess expertise in management of surgical diseases and application of basic science and research to surgical patients.

Balance Sheet Detail
LineBeginningEndChange
Assets
Rtn Earn Endowment Incm Other Fnds$189,261--
Investments in Publicly Traded Securities$154,981--
Savings and Temporary Cash Investments$34,280--
Total Assets$189,261$0▼ $189,261
Liabilities
Total Liabilities$0$0→ $0
Net Assets / Fund Balance
Total Net Assets Fund Balance$189,261$0▼ $189,261
Total Liabilities and Net Assets / Fund Balance$189,261$0▼ $189,261
Compensation and Service Providers
Top Officer Pay79th percentile

Board Members and Trustees

NameTitle
Justin DimickPresident
Wendy WahlPresident El
Andrea ObiCouncil/boar
Benjamin JacobsCouncil/boar
Bruce GerwertzCouncil/boar
David HeidtCouncil/boar
Erin PerroneCouncil/boar
Farokh DemehriCouncil/boar
Jim GirardyCouncil/boar
John EggenbergerCouncil/boar
Lesly DossettCouncil/boar
Steve HughesPast Preside
Amir GhaferiSecretary/tr
Revenue and Support

Revenue Composition

Contributions and Grants
$275
Program Service Revenue
$9,850
Investment Income
$3,502
Other Revenue
$0
Change in Net Assets
$-70,391
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Other Expenses$84,018
Grants and Similar Amounts Paid$0
Professional Fundraising Fees$0
Salaries, Compensation, and Employee Benefits$0
Total Fundraising Expense$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Fees for Services Accounting$10,500$14,575-$25,075
Fees for Services Legal-$8,143-$8,143
Travel$2,000--$2,000
Office Expenses$1,978--$1,978
Other Expenses$1,000--$1,000
Information Technology$980--$980
All Other Expenses$615--$615
Fees for Service Investment Mgmnt Fees-$300-$300
Total Functional Expenses$61,000$23,018$0$84,018
Fundraising, Events, and Gaming
Fundraising activities
No
Gaming activities
No
Professional fundraiser used
No

Fundraising and Gaming Totals

Line ItemAmount
Professional Fundraising Fees$0
Political and Lobbying Activity
Political campaign activity
No
Subject to proxy tax
No
Governance and Compliance

Governance Checklist

Compiled or reviewed by an accountant
No
Backup withholding compliance
No
Business relationship with 35% controlled entity
No
Business relationship with family members
No
Business relationship with organization members
No
Material changes to governing documents
No
Compensation from other sources disclosed
No
CEO compensation reviewed
No
Other officer compensation reviewed
No
Conflict-of-interest policy
No
Audited financial statements prepared
No
Key decisions subject to board approval
No
Management duties delegated
No

Governance Explanations

Form 990, Page 6, Part VI, Line 11B

“Form 990 reviewed by authorized officer.”

Form 990, Page 6, Part VI, Line 19

“UPON REQUEST.”

Filing and Contact Details

Filer

Filer Name
Frederick a Coller Surgical Society
EIN
23-7369885
Phone
7349369700
Address
1500 E MEDICAL CTR/2101 TAUBMAN CTR, ANN ARBOR, MI 48109-5346

Signing Officer

Name
Amir Ghaferi
Title
Secretary/treasurer
Phone
7349369700
Signed
2026-01-21
Discuss with paid preparer
Yes

Organization Details

Principal Officer
Justin Dimick
Formed
1947
Voting Board Members
15
Independent Board Members
15
Employees
0
Volunteers
6

Preparer

Firm
Sigler Accounting
Address
2900 PACKARD RD STE 3, YPSILANTI, MI 48197
Preparer
Nicole Sigler
Phone
7344343444
Supplemental Narrative

Additional Explanations

Form 990, Part XI, Line 9

“All funds transferred to u of m -118,870”

Raw XML Appendix326 raw XML fields

This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.

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IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt0FORM 990 REVIEWED BY AUTHORIZED OFFICER.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt1UPON REQUEST.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt2ALL FUNDS TRANSFERRED TO U OF M -118,870
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ReturnHeader/BusinessOfficerGrp/SignatureDt02026-01-21
ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt0FREDERICK A COLLER SURGICAL SOCIETY
ReturnHeader/Filer/BusinessNameControlTxt0FRED
ReturnHeader/Filer/EIN0237369885
ReturnHeader/Filer/PhoneNum07349369700
ReturnHeader/Filer/USAddress/AddressLine1Txt01500 E MEDICAL CTR/2101 TAUBMAN CTR
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ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt0SIGLER ACCOUNTING
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt02900 PACKARD RD STE 3
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm0YPSILANTI
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd0MI
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd048197
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ReturnHeader/PreparerPersonGrp/PreparationDt02026-01-21
ReturnHeader/PreparerPersonGrp/PreparerPersonNm0NICOLE SIGLER
ReturnHeader/ReturnTs02026-02-04T09:16:10-05:00
ReturnHeader/ReturnTypeCd0990
ReturnHeader/TaxPeriodBeginDt02025-01-01
ReturnHeader/TaxPeriodEndDt02025-12-31
ReturnHeader/TaxYr02025

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