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Compensation 990 is an independent service that uses public IRS Form 990 filings as its source data. We clean and standardize this information, but the original filings may contain errors or omissions. Years on this site refer to the organization’s fiscal year end date on the filing.

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Organizations Health Care Mathiesen Memorial Health Clinic

Mathiesen Memorial Health Clinic

Fiscal year ending 2022. Filed on October 26, 2023.

PO Box 535
Jamestown, California 95327

Mathiesen Memorial Health Clinic (EIN: 26-0895668) has filed an IRS Form 990 since at least fiscal year 2016. In its fiscal year 2022 IRS Form 990 filing, Mathiesen Memorial Health Clinic, a 501(c)(3) charitable organization, reported compensation for 8 out of 79 total employees. Among the employees shown here, the average compensation is $228,183. The highest compensated employee at Mathiesen Memorial Health Clinic is Gina Valente-Moore with fiscal year 2022 compensation of $362,328.

Revenue, expenses, and employee compensation

Revenue

$10,756,525

Expenses

$8,006,965

Employee compensation

$6,136,356
Revenue, expenses, and employee compensation over time

Reported Compensated Employees

Gina Valente-Moore
Fnpcoo
$362,328
$326,967 No related comp$35,361
John Vass
Chief Executive Officer
$279,384
$247,130 No related comp$32,254
Tom King
Family Nurse Practitioner
$241,887
$206,643 No related comp$35,244
David Demattei
Physician Assistant
$231,992
$203,635 No related comp$28,357
Taya Stanley
Acupunturist
$199,737
$170,860 No related comp$28,877
Dolora Dossi
Psychologist
$193,079
$166,471 No related comp$26,608
Melissa Ronneburg
Family Nurse Practitioner
$180,572
$146,078 No related comp$34,494
Amy Curtin
Chief Financial Officer
$136,482
$110,552 No related comp$25,930

Benchmark Employee Compensation

Non-Employee Board Members

Joseph Mathiesen-Powell
Health Board Chairman
Lloyd Mathiesen
Member
Melissa Mathiesen Powell
Member
Raymond Mathiesen
Member
Tony Erwin
Health Board Member

Mission Statement

TO PROVIDE NEEDED COMPREHENSIVE HEALTH SERVICES TO THE TRIBAL MEMBERSHIP, TRIBAL EMPLOYEES, NON-AFFILIATED AMERICAN INDIANS RESIDING IN TOLUMNE COUNTY AND RESIDENTS IN THE GREATER JAMESTOWN, CALIFORNIA AREA

Revisions to this organization profile

November 17, 2025:
2024 Mathiesen Memorial Health Clinic 990 filed
November 8, 2024:
2023 Mathiesen Memorial Health Clinic 990 filed
October 26, 2023:
2022 Mathiesen Memorial Health Clinic 990 filed

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