NPPES file of Aug 9, 2026

Thomas David Stern, PHD

Psychologist · San Francisco, CA

Thomas David Stern, PHD is a psychologist with a practice address in San Francisco, California, and NPI 1821068610, issued on Jan 24, 2006. Check the license (California PSY4982, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1821068610
Name
Thomas David Stern
Credential
PHD
Primary taxonomy
Psychologist 103T00000X
License number
PSY4982 CA
Self-reported in NPPES; status is on the state search
Practice location
2345 California St, San Francisco, CA 94115
Phone
(415) 905-4128
Enumerated
Jan 24, 2006
Record last updated
Aug 3, 2022
Medicaid ID
PSY498200 CA
Medicare enrollment
Enrolled (PECOS I20041203000574); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest psychologist records → All 7,304 in California → Look up another NPI →

Also registered at 2345 California St

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

  1. Douglas Anderson, M.D.Psychiatry Physician1134259393
  2. B. Fisher, M.D.Psychiatry Physician1669532313
  3. Norman Postone, M.D.Psychiatry Physician1063563344
  4. William Prey, M.D.Psychiatry Physician1366542953
  5. Georgiana Spradling, PH.D., MFTMarriage & Family Therapist1942372487

Verify Thomas David Stern in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license PSY4982    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
Find 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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Thomas David Stern among 7,304 psychologist records in California

Thomas David Stern, PHD is one of 7,304 psychologist records with a practice address in California. 6% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 1% of them.

  • NPI issued2006 · 1% of these records are older, 82% newer
  • In a Medicare fileNo · 6% of these records are
  • In the CMS Doctors and Clinicians fileYes · 14% of these records are
  • Graduated1973 · median 2005 among the 1,058 with a school on file
  • Record last updated2022 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

516 psychologist records list a practice address in San Francisco

They are 516 of the 38,143 NPPES records with a practice address in San Francisco, and 7,304 psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 7,304 in California → Every provider in San Francisco → Psychologist nationwide →

The 8 psychologist records with the nearest ZIP codes

  1. Diana Arsham, PH DSan Francisco, CA 941151093720971
  2. Kathleen Chalfont, PHDSan Francisco, CA 941151457445819
  3. Linda Hammond, LMFTSan Francisco, CA 941151942370721
  4. Claudette Heisler, PH.D.San Francisco, CA 941151013005404
  5. Loren Krane, PH.DSan Francisco, CA 941151578505608
  6. Rebecca Robbins, PH.D.San Francisco, CA 941151609959113
  7. Kenneth Roberson, PH.D.San Francisco, CA 941151174544381
  8. Judith Sachs, PH.D.San Francisco, CA 941151134113269

Common questions

What is Thomas David Stern, PHD's NPI number?

Thomas David Stern, PHD's National Provider Identifier (NPI) is 1821068610, issued on Jan 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas David Stern, PHD located?

The NPPES record lists a practice address at 2345 California St, San Francisco, CA, 94115. Phone: (415) 905-4128. Providers update this record themselves, so call before visiting.

How can I verify Thomas David Stern, PHD's license?

NPPES lists California license number PSY4982, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.