Arizona Society of Anesthesiologists
To raise the quality of the practice of anesthesiology, to improve patient care and safety through education, research and advocacy, and to disseminate current information about scientific progress in anesthesiology.
Arizona Society of Anesthesiologists at a glance
- Total assets
- $654,909
- -10.7% vs 2023
- Revenue (2024)
- $307,600
- +1.8% vs 2023
- Net investment income (2024)
- $28,682
- +15.9% vs 2023
- Expenses (2024)
- $423,332
- +5.8% vs 2023
- Latest 990 filing
- Form 990, 2024 View filing
Data from IRS Form 990, 2024; updated October 2026.
Who Arizona Society of Anesthesiologists funds
How this funder distributes its grants
Grant Size Distribution
4 grants across all recorded years
The most common grant size was under $50K: 4 grants of 4 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
States
Cities
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2022, annual grant giving ranged from $4K (2022) to $19K (2020). In 2022 it reported $4K in grants paid, as a total without an itemized list.
Hatched bars: grants paid as reported on the IRS filing, which lists no individual grants for that year.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| AZ Academy of Anesthesiologist Centennial, CO | Operations | $10,000 |
| Others under 5K each | — | $3,650 |
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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 | $654,909 | $307,600 | $423,332 | — | — | $28,682 |
| 2023 | $733,561 | $302,095 | $399,956 | — | — | $24,742 |
| 2022 | $811,595 | $301,720 | $285,038 | $3,650 | Total only | $793 |
| 2021 | $787,035 | $236,029 | $165,589 | $13,650 | 2 | $188 |
| 2020 | $717,515 | $316,502 | $268,286 | $18,650 | 2 | $165 |
"Total only": grants paid as reported on the IRS filing, which lists no individual grants for that year.
About Arizona Society of Anesthesiologists
Based on IRS filings
Arizona Society of Anesthesiologists is a public charity, based in Phoenix, AZ. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $655K in total assets. Net investment income was $29K.
Leadership & Key People
Officers and directors from IRS filings
Arizona Society of Anesthesiologists is led by Gary Tzeng MD, President since 2024 (on filings since 2021); none of the 16 officers listed in 2024 report compensation.
Officers on the 2024 filing
Gary Tzeng MD
President
Director → Treasurer, 2023
Treasurer → President, 2024
On filings since 2021
5 hrs/week
No compensation reported
Kassie Mueller
Executive Director
New on the 2024 filing
15 hrs/week
No compensation reported
James Fleck DO
Director
On filings since 2020
5 hrs/week
No compensation reported
Kevin Luk MD
Director
On filings since 2023
5 hrs/week
No compensation reported
Monica Harbell MD
Director
On filings since 2023
5 hrs/week
No compensation reported
Tony Ramirez MD
Director
On filings since 2023
5 hrs/week
No compensation reported
William Kwass MD
Director
On filings since 2023
5 hrs/week
No compensation reported
Ben Schumacher MD
Director
New on the 2024 filing
5 hrs/week
No compensation reported
Erika Scholtes MD
Director
New on the 2024 filing
5 hrs/week
No compensation reported
Kelly Arwari MD
Director
New on the 2024 filing
5 hrs/week
No compensation reported
Nilesh Bhakta MD
Director
New on the 2024 filing
5 hrs/week
No compensation reported
Steve Lindauer MD
Past President
President Elect → President, 2023
President → Past President, 2024
On filings since 2020
5 hrs/week
No compensation reported
John Marvel MD
Vice President
Director → Secretary, 2023
Secretary → Vice President, 2024
On filings since 2021
5 hrs/week
No compensation reported
Raj Singhal MD
Treasurer
Director → Treasurer, 2024
On filings since 2021
5 hrs/week
No compensation reported
Yingzhong Tian MD
President Elect
Treasurer → Vice President, 2023
Vice President → President Elect, 2024
On filings since 2021
5 hrs/week
No compensation reported
Kathy Glas MD
Secretary
Director → Secretary, 2024
On filings since 2023
5 hrs/week
No compensation reported
Former officers (16)
- Former: Heidi Hadley Tavel (2020–2023) — Past President
- Former: Kevin Evans MD (2021–2023) — President Elect
- Former: Molly Kraus MD (2021–2023) — Director
- Former: Jeremy Nielsen MD (2023) — Director
- Former: Brenda Gentz (2020–2022) — Director
- Former: Brian Cammarata (2020–2022) — Director
- Former: William Thompson (2020–2022) — Past President
- Former: Gregory Whitaker (2021–2022) — Secretary
- Former: Kee Luk (2021–2022) — Director
- Former: Michelle Da Costa (2021–2022) — Director
- Former: Sang O. (2021–2022) — Director
- Former: Joni Bower (2020–2021) — Executive Director
- Former: Courtney Koshar (2020) — Past President
- Former: Greg Whitacker (2020) — Director
- Former: Ian Kallemeyer (2020) — Secretary
- Former: Tuyet Nguyen (2020) — Director
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.
Frequently asked questions about Arizona Society of Anesthesiologists
How large is Arizona Society of Anesthesiologists?
Arizona Society of Anesthesiologists reported $655K in total assets on its 2024 IRS Form 990. Its revenue that year was $308K.
Where does Arizona Society of Anesthesiologists operate?
Arizona Society of Anesthesiologists has awarded grants in Colorado.
What is Arizona Society of Anesthesiologists's EIN?
Arizona Society of Anesthesiologists's EIN (Employer Identification Number) is 86-0193130. IRS Form 990 filing data is available on this page for 2020–2024.
Data last updated October 2026. Sourced from IRS Form 990 filings.
Data update history
(2)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2022 (received by the IRS October 26, 2023)
- IRS filings on file for fiscal years 2020–2024
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Arizona Society of Anesthesiologists down — hundreds of funders to go?