John Muir Physician Network
To establish, operate and maintain multi-specialty medical clinics for the provision of healthcare services. Engage in, sponsor and promote charitable healthcare, educational and medical research activities and provide health plan services and physician
John Muir Physician Network at a glance
In short: John Muir Physician Network gave $540K across 1 grant in 2024 (avg $540K), mostly in California. Source: 2024 IRS Form 990.
- Annual giving (2024)
- $540,259
- -58.6% vs 2023
- Grants made (2024)
- 1
- +0.0% vs 2023
- Average grant
- $540,259
- -58.6% vs 2023
- Median grant
- $540,259
- Total assets
- $167,418,772
- -9.7% vs 2023
- Primary geography
- California (100% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990, 2024 View filing
Data from IRS Form 990, 2024; updated September 2026.
Who John Muir Physician Network funds
How this funder distributes its grants
Top Recipients
Top recipient in 2024
The largest 2024 recipient was John Muir Health ($540K).
Grant Size Distribution
8 grants across all recorded years
The most common grant size was in the $250–500K range: 2 grants of 8 (25%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of the 2024 grant dollars on its one itemized grant.
States
Cities
How John Muir Physician Network gives
- Giving fell 93% from 2021 to 2024. Method
From the foundation's IRS Form 990 filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2024, annual grant giving ranged from $540K (2024) to $13.3M (2020). In 2024 it made 1 grant totaling $540K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| John Muir Health Walnut Creek, CA | General Support | $540,259 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2024 | $167,418,772 | $519,192,918 | $529,027,075 | $540,259 | 1 | $186,642 |
| 2023 | $185,336,528 | $582,031,651 | $598,770,660 | $1,305,559 | 1 | $460,040 |
| 2022 | $205,132,147 | $572,725,768 | $588,596,568 | $3,755,372 | 2 | $-42,953 |
| 2021 | $217,370,876 | $548,794,015 | $524,433,647 | $7,472,883 | 2 | $292,460 |
| 2020 | $195,368,788 | $437,709,023 | $440,982,117 | $13,340,231 | 2 | $36,379 |
About John Muir Physician Network
Based on IRS filings
John Muir Physician Network is a public charity focused on Health, based in Walnut Creek, CA. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $167.4M in total assets. In 2024, it awarded 1 grant totaling $540K. Net investment income was $187K.
Focus Areas
Leadership & Key People
Officers and directors from IRS filings
John Muir Physician Network is led by Michael S. Thomas, President & CEO since 2023 (on filings since 2022); 6 of 25 officers listed in 2024 are compensated.
Officers on the 2024 filing
Michael S. Thomas
President & CEO
President, CEO & Director → President & CEO, 2023
On filings since 2022
5 hrs/week
No compensation reported
Timothy Souva
Executive Director & Practice Ops
Executive Director & Practice Ops → Executive Director Cardiology & Practice Op, 2023
Executive Director Cardiology & Practice Op → Executive Director & Practice Ops, 2024
On filings since 2020
60 hrs/week
$221K (2020) → $310K (2024)
Jay Harris
Chairman
Director → Vice Chairman, 2021
Vice Chairman → Chairman, 2023
On filings since 2020
5 hrs/week
No compensation reported
Jayla Kyaw
Director & Medical Group Support
New on the 2024 filing
60 hrs/week
$276K (2024)
Anne Grodin
Director
On filings since 2020
5 hrs/week
No compensation reported
Jack Thompson
Director
On filings since 2020
5 hrs/week
No compensation reported
Kathleen Odne
Director
Vice Chairman → Chairman, 2021
Chairman → Director, 2023
On filings since 2020
5 hrs/week
No compensation reported
Mark Musco MD
Director
On filings since 2020
5 hrs/week
No compensation reported
Peter Wilson
Director
On filings since 2020
5 hrs/week
No compensation reported
Carolyn Lacey MD
Director
On filings since 2022
5 hrs/week
No compensation reported
Fatima Angeles
Director
On filings since 2022
5 hrs/week
No compensation reported
Chinnavuth De Monteiro MD
Director
On filings since 2023
5 hrs/week
No compensation reported
Lauren Markstein
Director
On filings since 2023
5 hrs/week
No compensation reported
Vivian Wing MD
Director
On filings since 2023
5 hrs/week
No compensation reported
Steven Green MD
Director
New on the 2024 filing
5 hrs/week
No compensation reported
Steven Young MD
Director
New on the 2024 filing
5 hrs/week
No compensation reported
Maureen Stevenson MD
CAO
Senior Vice President → CAO, 2024
On filings since 2021
60 hrs/week
$156K (2021) → $950K (2024)
Ramzy Awad
Vice President Foundation Practice Ops
Vice President Contracting & Risk Ops → Vice President Foundation Practice Ops, 2024
On filings since 2023
60 hrs/week
$376K (2023) → $495K (2024)
Michele Claar
Supervisor & Nuclear Medicine
New on the 2024 filing
60 hrs/week
$276K (2024)
Zachary Ladner
Physician Assistant
New on the 2024 filing
60 hrs/week
$301K (2024)
John Sayres
Secretary & Treasurer
Secretary → Secretary & Treasurer, 2021
On filings since 2020
5 hrs/week
No compensation reported
Roger Bailey
Vice Chairman
Director → Vice Chairman, 2023
On filings since 2020
5 hrs/week
No compensation reported
Melinda Estep
Senior Vice President & CFO
On filings since 2023
5 hrs/week
No compensation reported
Jane Willemsen
Chief Operating Officer
New on the 2024 filing
6 hrs/week
No compensation reported
Tim Maurice
Interim CFO
New on the 2024 filing
5 hrs/week
No compensation reported
Former officers (22)
- Former: Christian Pass (2020–2023) — Senior Vice President & CFO
- Former: Johannes Joe Peters MD (2020–2023) — Director
- Former: Lee Huskins (2020–2023) — Former President & CAO
- Former: Paul Deeringer (2020–2023) — Former Vice President Strategy
- Former: Ravi Hundal MD (2020–2023) — Director
- Former: Jessica Wilkes (2022–2023) — Vice President & Practice Management
- Former: Lori Orr (2022–2023) — Executive Director & Practice Mg
- Former: Vikram Auluck (2022–2023) — Lead Pharmacist
- Former: Calvin Knight (2020–2022) — President, CEO & Director
- Former: Chi Perlroth MD (2020–2022) — Director
- Former: Laura Markstein (2020–2022) — Director
- Former: Taejoon Ahn MD (2020–2022) — Director
- Former: Zarah Ross (2020–2022) — Executive Director & Contracts
- Former: Bazil Fonseca (2020–2021) — Executive Director & Practice Management
- Former: Christopher Taylor (2020–2021) — Executive Director & Practice Management
- Former: John Merson MD (2020–2021) — Director
- Former: Laura Kazaglis (2020–2021) — Vice President Primary Care Operations
- Former: Shelley Horwitz (2020–2021) — Vice President Physician Relations & Interim
- Former: Tom Macmillan (2020–2021) — Director & Physician Services
- Former: Shelly Poole (2021) — Executive Director & Practice Management
- Former: Keith Pugliese (2020) — Vice President Contracting & Risk Operat
- Former: Robert E. Edmondson (2020) — Chairman
Data from IRS Form 990 filings, 2020–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2024 IRS filing
The highest reported compensation on the 2024 filing was $950K, to Maureen Stevenson MD (Cao). 6 officers or directors reported compensation on that filing.
Frequently asked questions about John Muir Physician Network
How much does John Muir Physician Network give each year?
John Muir Physician Network gave $540K across 1 grant in 2024, according to its 2024 IRS Form 990. In 2023 it gave $1.3M across 1 grant.
How large is John Muir Physician Network?
John Muir Physician Network reported $167.4M in total assets on its 2024 IRS Form 990. Its revenue that year was $519.2M.
What is John Muir Physician Network?
John Muir Physician Network is a public charity focused on Health, based in Walnut Creek, CA. It holds $167.4M in total assets as of 2024.
Where does John Muir Physician Network operate?
John Muir Physician Network has awarded grants in California.
What is John Muir Physician Network's EIN?
John Muir Physician Network's EIN (Employer Identification Number) is 68-0360801. IRS Form 990 filing data is available on this page for 2020–2024.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Data update history
(6)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2020 (received by the IRS November 12, 2021)
- Updated Form 990 for fiscal year 2021 (received by the IRS November 9, 2022)
- Updated Form 990 for fiscal year 2022 (received by the IRS November 15, 2023)
- Updated Form 990 for fiscal year 2023 (received by the IRS November 14, 2024)
- Updated Form 990 for fiscal year 2024 (received by the IRS November 12, 2025)
- IRS filings on file for fiscal years 2020–2024
Live grants for the work John Muir Physician Network funds
Health Open opportunities, soonest deadline first.
Explore Open Grants
Browse active grant opportunities in John Muir Physician Network's focus areas in our free grants database
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