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Nonprofit · EIN 76-0022338

OPERATION RAINBOW INC

Tax-exempt · OAKLAND, CA 94602

Financials

$410K$457K2023$713K$498K2024
Revenue Expenses · by fiscal year end
Financials of OPERATION RAINBOW INC by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
June 30, 2025990$712,590$497,830$214,760$706,461$5,330$701,131
June 30, 2024990$410,144$457,012-$46,868$531,657$45,286$486,371
Financial details: 990 for the year ended June 30, 2025

Revenue

Contributions, gifts and grants
$712,165
Program service revenue
$0
Investment income
$425
Other revenue
$0

Expenses

Grants and similar amounts paid
$0
Compensation of officers, directors and key employees
$60,000
Salaries, compensation and benefits (total)
$67,776
Professional fundraising fees
$0
Legal fees
$460
Accounting fees
$4,900
Travel
$3,340
Depreciation
$5,195
Program services (functional)
$394,171
Management and general (functional)
$67,523
Fundraising (functional)
$36,136

Balance sheet and other

Total assets, start of year
$531,657
Total assets, end of year
$706,461
Total liabilities, end of year
$5,330
Net assets, end of year
$701,131
Land, buildings and equipment
$10,723
Net assets without donor restrictions
$701,131
Gross unrelated business income
$425
Gross receipts
$712,590
Employees
1
Volunteers
0
Year formed
1981
State of legal domicile
CA

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended June 30, 2025, highest compensation first.

NameTitleHours / weekCompensation
MICHELLE DUNCAN-LOWENBERGEXECUTIVE DIRECTOR
Trustee or director
40$60,000
GUS GIALAMAS MDDIRECTOR/CHAIRMAN
Trustee or director, Officer
1$0
DAVID M ATKIN MDDIRECTOR/PRESIDENT
Trustee or director, Officer
1$0
TAYLOR K SMITH MDDIRECTOR/SECRETARY/TREASUR
Trustee or director, Officer
1$0
LAURA ESCOBOSADIRECTOR
Trustee or director
1$0
RICHARD GOSSELIN MDDIRECTOR
Trustee or director
1$0
PHILIP BICKLER MDDIRECTOR
Trustee or director
1$0
ERROL LOBO MDDIRECTOR
Trustee or director
1$0
990 for the year ended June 30, 2024: 8 people
NameTitleHours / weekCompensation
MICHELLE DUNCAN-LOWENBERGEXECUTIVE DIRECTOR
Trustee or director
40$60,000
GUS GIALAMAS MDDIRECTOR/CHAIRMAN
Trustee or director, Officer
1$0
DAVID M ATKIN MDDIRECTOR/PRESIDENT
Trustee or director, Officer
1$0
TAYLOR K SMITH MDDIRECTOR/SECRETARY/TREASUR
Trustee or director, Officer
1$0
LAURA ESCOBOSADIRECTOR
Trustee or director
1$0
RICHARD GOSSELIN MDDIRECTOR
Trustee or director
1$0
PHILIP BICKLER MDDIRECTOR
Trustee or director
1$0
ERROL LOBO MDDIRECTOR
Trustee or director
1$0

Address and contacts

Address (IRS master file)
4200 PARK BLVD PMB 157, OAKLAND, CA 94602-1312
Principal officer (990 for 2024)
MICHELLE DUNCAN-LOWENBERG, 4200 PARK BLVD PMB 157, OAKLAND, CA 94602
Signed the 990
MICHELLE DUNCAN-LOWENBERG, EXECUTIVE DIRECTOR
Phone
(415) 218-3220
Return prepared by
BOERIO LLP

California records

California keeps its own records of charities and corporations. Search them by EIN 76-0022338 or by the name OPERATION RAINBOW INC.

Attorney General, Registry of Charities and Fundraisers
Registration status and filed reports (CT-TR-1, RRF-1)

Mission

TO PROVIDE VOLUNTEER HEALTH CARE SERVICES TO MEDICALLY UNDERSERVED COUNTRIES.

990 for the year ended June 30, 2025

Program accomplishments

  • ORGANIZES, FUNDS, & OVERSEES VOLUNTEER HEALTH CARE TEAMS THAT PROVIDE RECONSTRUCTIVE SURGERY TO INDIGENT PATIENTS; OVER 240 PATIENTS WERE SEEN AND 280 SURGERIES WERE PERFORMED IN THE FOUR UNDERSERVED COUNTRIES OF ARMENIA (1 MISSIONS); ECUADOR (1 MISSION); HONDURAS (2 MISSIONS) AND GUATEMALA (1 MISSION) IN THE FISCAL YEAR ENDED 6/30/2025.
    Expenses $394,171

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in June, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026Not due yet
2024June 30, 2025November 17, 2025990 on file
2023June 30, 2024November 15, 2024990 on file

IRS record

EIN
76-0022338
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (170(b)(1)(A)(vi))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
1983
Accounting year ends
June
Files
Form 990 or 990-EZ
Assets (IRS master file)
$706,461
Income (IRS master file)
$712,590

Filing history

FormYear endedRevenueExpensesAssetsReturn
990June 2025$712,590$497,830$706,461XML
990June 2024$410,144$457,012$531,657IRS
990June 2023$331,492$468,807$542,571IRS
990June 2022$215,030$145,205$683,552IRS
990June 2021–––IRS
990June 2020–––IRS
990June 2019–––IRS
990June 2018–––IRS

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 76-0022338).

Questions about OPERATION RAINBOW INC

What is the EIN of OPERATION RAINBOW INC?
The employer identification number (EIN) of OPERATION RAINBOW INC is 76-0022338.
Is OPERATION RAINBOW INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1983.
Are donations to OPERATION RAINBOW INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does OPERATION RAINBOW INC file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of OPERATION RAINBOW INC due?
The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did OPERATION RAINBOW INC last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended June 2025.
Who is the principal officer of OPERATION RAINBOW INC?
The 990 for the year ended June 30, 2025 names MICHELLE DUNCAN-LOWENBERG.
Who are the officers and directors of OPERATION RAINBOW INC?
The 990 for the year ended June 30, 2025 lists 8 people; 1 received compensation from the organization, the highest $60,000 (MICHELLE DUNCAN-LOWENBERG, EXECUTIVE DIRECTOR).
How much revenue does OPERATION RAINBOW INC have?
On its 990 for the year ended June 30, 2025 it reported revenue of $712,590, expenses of $497,830 and total assets of $706,461 at year end.

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