Registry data as of Aug 27, 2026

Alison May, M.D.

Psychiatry Physician · San Francisco, CA

Alison May, M.D. is a psychiatry physician with a practice address in San Francisco, California, and NPI 1093843815, issued on Mar 1, 2007. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1093843815
Name
Alison May
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
Practice location
401 Parnassus Ave, San Francisco, CA 94143
Phone
(415) 476-7577
Enumerated
Mar 1, 2007
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 401 Parnassus Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Bibhav Acharya, M.D.Psychiatry Physician1306137427
  2. Alexander AcostaStudent in an Organized Health Care Education/Training Program1770161036
  3. Eric Alcid, M.D., PH.D.Student in an Organized Health Care Education/Training Program1831622174
  4. Sean Amegadzie, MDStudent in an Organized Health Care Education/Training Program1427685403
  5. Alexandra Apple, PHDAdult Development & Aging Psychologist1033871207
  6. Regina Armas, LCSW, PH.D.Clinical Social Worker1730118217

Verify Alison May in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

92% fewer Medicare Part D claims than the average psychiatry physician in 2024

84 Medicare Part D claims, against an average of 1,010 among the 32,287 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.

  1. Alison May84
  2. Specialty average1,010

Most prescribed

  1. Lithium Carbonate15 claims
  2. Divalproex Sodium Er11 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

696 psychiatry physician records list a San Francisco practice address

They are 696 of the 38,143 NPPES records with a San Francisco practice address, and 7,890 psychiatry physician records in California.

Other psychiatry physician records in California

  1. Nancy Aaen, MDNapa, CA1609816669
  2. Criselda Abad-Santos, M.D.Woodland Hills, CA1760461826
  3. Mekabiz Abaian, MDSan Bernardino, CA1891090163
  4. Kafia Abbasi, M.D.French Camp, CA1215114897
  5. Michele Abbasi, M.D.Westlake Village, CA1093940330
  6. Zohaib AbbasiMartinez, CA1013392224
  7. Chester Abbott, M.D.Pasadena, CA1053442186
  8. Nancy Abdelmalak, M.D.Elk Grove, CA1912137498
  9. Ezzat Abdelmalek, M.DDana Point, CA1992828826
  10. Ahmed AbdelrazekSacramento, CA1669092128

Common questions

What is Alison May, M.D.'s NPI number?

Alison May, M.D.'s National Provider Identifier (NPI) is 1093843815, issued on Mar 1, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Alison May, M.D. located?

The NPPES record lists a practice address at 401 Parnassus Ave, San Francisco, CA, 94143. Phone: (415) 476-7577. Providers update this record themselves, so call before visiting.

How can I verify Alison May, M.D.'s license?

Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Alison May, M.D. prescribe under Medicare Part D?

In 2024, Alison May, M.D. had 84 Medicare Part D claims; the average among psychiatry physician prescribers was 1,010. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.