Registry data as of Aug 27, 2026

Thomas Atkin, M.D.

General Practice Dentistry · Larkspur, CA

Thomas Atkin, M.D. is a general practice dentistry with a practice address in Larkspur, California, and NPI 1457399339, issued on Jun 3, 2006. Check the license (California C-29367, 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, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1457399339
Name
Thomas Atkin
Credential
M.D.
Primary taxonomy
General Practice Dentistry 1223G0001X
License numbers
C-29367 CA
C29367 CA
Self-reported in NPPES; status is on the state search
Practice location
634 Riviera Circle,, Larkspur, CA 94939
Phone
(415) 924-9484
Enumerated
Jun 3, 2006
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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Verify Thomas Atkin 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 C-29367
    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.

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

4 general practice dentistry records list a Larkspur practice address

They are 4 of the 291 NPPES records with a Larkspur practice address, and 17,740 general practice dentistry records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other general practice dentistry records in California

  1. Ronald Aanerud, DDSSan Diego, CA1871752931
  2. Steven Aaronson, D.D.S.Santa Monica, CA1265455851
  3. Shahrzad Aarup, DDSPomona, CA1265784367
  4. Al Abad, DDSSan Jose, CA1104992148
  5. Erwin Abad, D.D.S.Canoga Park, CA1861590093
  6. Francine Abad, DDSSan Francisco, CA1942700810
  7. Maria Abad, D.D.S.Norwalk, CA1215006754
  8. Mark Ryan Abad, DDSDaly City, CA1770357394
  9. Sanaz Abadi, D.D.S.Los Angeles, CA1699934026
  10. Ernesto Abadilla, DDSPalm Desert, CA1508063801

Common questions

What is Thomas Atkin, M.D.'s NPI number?

Thomas Atkin, M.D.'s National Provider Identifier (NPI) is 1457399339, issued on Jun 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Atkin, M.D. located?

The NPPES record lists a practice address at 634 Riviera Circle,, Larkspur, CA, 94939. Phone: (415) 924-9484. Providers update this record themselves, so call before visiting.

How can I verify Thomas Atkin, M.D.'s license?

NPPES lists California license number C-29367, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.