NPPES file of Aug 9, 2026

Michael Thanh Dinh

Psychiatry Physician · Palo Alto, CA

Michael Thanh Dinh is a psychiatry physician with a practice address in Palo Alto, California, and NPI 1356978639, issued on Mar 25, 2020. Check the license (California A178845, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1356978639
Name
Michael Thanh Dinh
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
A178845 CA
Self-reported in NPPES; status is on the state search
Practice location
401 Quarry RD, Palo Alto, CA 94304
Phone
(415) 683-0703
Enumerated
Mar 25, 2020
Record last updated
Jun 24, 2025
Fax
(804) 964-2330
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 Quarry RD

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

  1. Richard Abbey, PH.D.Clinical Neuropsychologist1730377649
  2. Dorothy Adu-Amankwah, MDPsychiatry Physician1932900313
  3. Nakul AggarwalStudent in an Organized Health Care Education/Training Program1881495976
  4. Rosa Ahn-Horst, MD MPHPsychiatry Physician1649822420
  5. Kelley Anderson, M.S., M.A., PHDPsychologist1851777999
  6. Robin Apple, PH.D.Psychologist1134284912

Verify Michael Thanh Dinh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A178845
    Check 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.

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96% fewer Medicare Part D claims than the average psychiatry physician in 2024

35 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Michael Dinh35
  2. Specialty average1,000

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.

Michael Thanh Dinh among 8,673 psychiatry physician records in California

Michael Thanh Dinh is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 87% of them.

  • NPI issued2020 · 87% of these records are older, 9% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 38% of these records are
  • Record last updated2025 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

215 psychiatry physician records list a practice address in Palo Alto

They are 215 of the 7,617 NPPES records with a practice address in Palo Alto, and 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Elias Aboujaoude, MDPalo Alto, CA 943041649209768
  2. Steven Bagley, MDPalo Alto, CA 943041730125048
  3. Justin Birnbaum, M.D.Palo Alto, CA 943041013007848
  4. Kim Bullock, M.D.Palo Alto, CA 943041790842763
  5. Christopher Capelle, MDPalo Alto, CA 943041902919640
  6. John Dorfman, M. D.Palo Alto, CA 943041912944687
  7. Carla Galloway, M.D.Palo Alto, CA 943041790881506
  8. Robert Hayward, MD, MPHPalo Alto, CA 943041437216744

Common questions

What is Michael Thanh Dinh's NPI number?

Michael Thanh Dinh's National Provider Identifier (NPI) is 1356978639, issued on Mar 25, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Michael Thanh Dinh located?

The NPPES record lists a practice address at 401 Quarry RD, Palo Alto, CA, 94304. Phone: (415) 683-0703. Providers update this record themselves, so call before visiting.

How can I verify Michael Thanh Dinh's license?

NPPES lists California license number A178845, as entered by the provider. 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 Michael Thanh Dinh prescribe under Medicare Part D?

In 2024, Michael Thanh Dinh had 35 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 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.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.