Registry data as of Aug 27, 2026

Mark Eastham, M.D.

Specialist · San Jose, CA

Mark Eastham, M.D. is a specialist with a practice address in San Jose, California, and NPI 1881610376, issued on Jul 15, 2006. Check the license (California G65379, 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
1881610376
Name
Mark Eastham
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
G65379 CA
Self-reported in NPPES; status is on the state search
Practice location
2505 Samaritan Dr, San Jose, CA 95124
Phone
(408) 358-0133
Enumerated
Jul 15, 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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Also registered at 2505 Samaritan Dr

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

  1. Matthew Bloom, M.D.Surgery Physician1477631844
  2. Jacqueline Chak, M.D.Pediatrics Physician1558684647
  3. Carole Cook, M.D.Gynecology Physician1710003850
  4. Lauren Farash, M.D., M.P.H.Pediatrics Physician1215170147
  5. Ernesto Gonzalez, M.D.Pediatrics Physician1689937344
  6. Vehazoun Guekguezian, D.D.S.Dentist1891945606

Verify Mark Eastham 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 G65379
    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 →

Specialist providers in California

There are 6,640 specialist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other specialist records in California

  1. Adrienne Abad SantosSan Francisco, CA1588976435
  2. Brenda Abarca, MDTorrance, CA1407485527
  3. Fatemeh Abbasi, PTVan Nuys, CA1558496760
  4. Erlinda Abcede, M.D.Cudahy, CA1831228675
  5. Maher Abdallah, M.D.Palm Springs, CA1205988011
  6. Basim Abdelkarim, MDUpland, CA1932217544
  7. Farinaz AbdiSan Marcos, CA1063153963
  8. Mai Abe, LESanta Monica, CA1609405158
  9. Hamid Abedi, HEARING AID SPECIALISan Diego, CA1659410744
  10. Mehrad Abedi, M.D.Sacramento, CA1467459222

Common questions

What is Mark Eastham, M.D.'s NPI number?

Mark Eastham, M.D.'s National Provider Identifier (NPI) is 1881610376, issued on Jul 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Eastham, M.D. located?

The NPPES record lists a practice address at 2505 Samaritan Dr, San Jose, CA, 95124. Phone: (408) 358-0133. Providers update this record themselves, so call before visiting.

How can I verify Mark Eastham, M.D.'s license?

NPPES lists California license number G65379, 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.