John R. Campbell, M.D.
Specialist · San Rafael, CA
John R. Campbell, M.D. is a specialist with a practice address in San Rafael, California, and NPI 1619970928, issued on May 31, 2005. Check the license (California G031914, 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.
- Name
- John Campbell
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- G031914 CA
Self-reported in NPPES; status is on the state search - Practice location
- 901 E St, San Rafael, CA 94901
- Phone
- (415) 454-5565
- Enumerated
- May 31, 2005
- Record last updated
- Jul 16, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (415) 454-2957
- Medicaid ID
- GR0015750 CA
- Entity
- Type 1 · individual
Also registered at 901 E St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Campbell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license G031914Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
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There are 5,749 specialist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
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Common questions
What is John R. Campbell, M.D.'s NPI number?
John R. Campbell, M.D.'s National Provider Identifier (NPI) is 1619970928, issued on May 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John R. Campbell, M.D. located?
The NPPES record lists a practice address at 901 E St, San Rafael, CA, 94901. Phone: (415) 454-5565. Providers update this record themselves, so call before visiting.
How can I verify John R. Campbell, M.D.'s license?
NPPES lists California license number G031914, 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.
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.