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Governance Register
US nonprofit · EIN 452394204 · Chicago, ILiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 452394204) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe time served.Latest return IRS Form 990 series e-file data - 990 for the year to 30 June 2025: assets, liabilities, staff, website, telephone, pay, related organisations (Schedule R).Renewal outlook Computed by Governance Register from the observed filing history and filed revenue. Not a statement that the organisation is recruiting.Principal officer IRS Form 990-N (e-Postcard) - principal officer named for tax year 2018.Exemption status IRS Automatic Revocation of Exemption List (posted to 13 October 2026).Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data
Exemption reinstated on 15 February 2013. The IRS had automatically revoked it on 15 February 2013 (after three years without a return). Source: IRS Automatic Revocation of Exemption List, posted to 13 October 2026.

Alliance for Community Research Engagement and Support's network

10 people1 organisationi10 people and 1 organisation on this map.The large node is the subject of this page. Solid lines are what the register itself records (10). Violet dotted lines (4) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.

The board

10 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations in the tables. The network map shows same-name matches as likely links only, never as confirmed.Time served and departures are observed across annual filings. Observed time served is a lower bound - a member may have joined before the first year on record. The organisation reported 9 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Berneice Mills-Thomas ChairBoard Co-Chairperson (Until 10/31/22)2021
5 yrs
Richard Taaffe ChairBoard Co-Chairperson2020
6 yrs
Alejandro RomilloCo-Chief Executive Officer2020
6 yrs
David MunarBoard Member2020
6 yrs
ED StellonBoard Member2020
6 yrs
Elodie DorsoBoard Member2020
6 yrs
Frank Mazzeo JR DDSBoard Member2020
6 yrs
Fred D Rachman MDCo-Chief Executive Officer2020
6 yrs
Lee Francis MDBoard Member2020
6 yrs
Merrill ThomasTreasurer2020
6 yrs
Under 5 years5 to 6 years6 years or more

Officers and senior leadership

9 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Andrew HamiltonChief Informatics Officersince 2020
Margaret CastrovillariCo-Chief Financial Officersince 2020
Margarita OlletChief Operating Officersince 2020
Maylee SanchezChief Information Officersince 2020
Meredith MarshQuality Improvement Officersince 2020
Nivedita Mohanty MDChief Research Officersince 2020
Rick FriedfeldCo-Chief Financial Officer2020
Rick FriedfieldCo-Chief Financial Officersince 2021
Timothy Long MDChief Clinical Officersince 2020

Pay and hours

year to 30 June 2025iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
Fred D Rachman MDCo-Chief Executive Officer2$0$272k$33k
Alejandro RomilloCo-Chief Executive Officer2$0
Richard TaaffeBoard Co-Chairperson1$0
Triste Lieteau Smith MD JDBoard Co-Chairperson1$0
Merrill ThomasTreasurer1$0
Anthony ArmstrongBoard Member1$0
Lee Francis MDBoard Member1$0
Elodie DorsoBoard Member1$0
Andrew HamiltonChief Informatics Officer4$0$242k$22k
Margaret CastrovillariCo-Chief Financial Officer2$0$233k$36k
Nivedita Mohanty MDChief Research Off. (Until 8/31/24)2$0$163k$15k
Maylee SanchezChief Information Officer2$0
Rick FriedfieldCo-Chief Financial Officer2$0
Margarita OlletChief Operating Officer2$0
Meredith MarshQuality Improvement Officer2$0

About

Legal name
Alliance for Community Research Engagement and Support
EIN
452394204
Address
225 West Illinois Street 5th Floor, Chicago, IL, 60654-7927
State
Illinois
Mission
To support the use of data and health information technology through research and technical assistance, education, innovation, and evaluation in order to improve health care delivery in safety net settings and to improve the health status of underserved communities. (as filed on the Form 990)
Activity (NTEE)
H050 Medical research
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Medical Research
Size band
6 (IRS master file code)
Formed
2010
Principal officer
Margaret S Castrovillari (as named on the Form 990)
IRS ruling date
1 January 2014
Status
Code 01 (unconditional exemption)
Form 990 filings on record
4, latest 2023
IRS Publication 78
PC (contributions deductible)

Most connected

Related organisations (Schedule R)

Longest observed on the filings

≥6years on the filingsRichard Taaffe
≥6years on the filingsAlejandro Romillo
≥6years on the filingsDavid Munar
≥6years on the filingsED Stellon

Latest return

year to 30 June 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 30 June 2025. US dollars, as filed.
Total assets
$2.6m
Total liabilities
$8.8m
Net assets or fund balances
Minus $6.2m
Contributions and grants received
$459k
Program service revenue
$269k
Employees
0