NPPES file of Aug 9, 2026

James L. Naughton, M.D.

Internal Medicine Physician · Pinole, CA

James L. Naughton, M.D. is an internal medicine physician with a practice address in Pinole, California, and NPI 1447248778, issued on Oct 11, 2005. Check the license (California G26715, as entered in NPPES) on the Medical Board of California; 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
1447248778
Name
James L. Naughton
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
G26715 CA
Self-reported in NPPES; status is on the state search
Practice location
2160 Appian Way, Pinole, CA 94564
Phone
(510) 724-9110
Enumerated
Oct 11, 2005
Record last updated
Aug 13, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(916) 239-3611
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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8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →

Also registered at 2160 Appian Way

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

  1. Elizabeth Anthony, MDFamily Medicine Physician1164441663
  2. Karen Barnes, CPNPPediatric Nurse Practitioner1962767111
  3. Richard Batts, M.D.Internal Medicine Physician1902894298
  4. Morgan Christiansen, PT, DPTPhysical Therapist1821495219
  5. Beverly Estes, MDPediatrics Physician1851351795
  6. Cindy Gracely, OTRHand Occupational Therapist1235168717

Verify James L. Naughton in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G26715    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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James L. Naughton among 17,696 internal medicine physician records in California

James L. Naughton, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 95% newer
  • In a Medicare fileNo · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2008 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

7 internal medicine physician records list a practice address in Pinole

They are 7 of the 370 NPPES records with a practice address in Pinole, and 17,696 internal medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 17,696 in California → Every provider in Pinole → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Richard Batts, M.D.Pinole, CA 945641902894298
  2. Matthew Campbell, M.D.Brentwood, CA 945641023108016
  3. Anita Gaind, MDPinole, CA 945641073691820
  4. Chao HoSan Leandro, CA 945641629161146
  5. Rekha Murali, M.D.Pinole, CA 945641124157946
  6. Zygy Roe-Zurz, MDPinole, CA 945641093440620
  7. Zena Salim, MDPinole, CA 945641700381662
  8. Richard Sankary, M.D.Pinole, CA 945641861481541

Common questions

What is James L. Naughton, M.D.'s NPI number?

James L. Naughton, M.D.'s National Provider Identifier (NPI) is 1447248778, issued on Oct 11, 2005. An NPI identifies a provider in billing; it is not a license.

Where is James L. Naughton, M.D. located?

The NPPES record lists a practice address at 2160 Appian Way, Pinole, CA, 94564. Phone: (510) 724-9110. Providers update this record themselves, so call before visiting.

How can I verify James L. Naughton, M.D.'s license?

NPPES lists California license number G26715, 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.

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.