NPPES file of Aug 9, 2026

David S. Gullion, M.D.

Specialist · Greenbrae, CA

David S. Gullion, M.D. is a specialist with a practice address in Greenbrae, California, and NPI 1639270986, issued on Sep 26, 2006. Check the license (California G16825, 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
1639270986
Name
David S. Gullion
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
G16825 CA
Self-reported in NPPES; status is on the state search
Practice location
1350 S Eliseo Dr, Greenbrae, CA 94904
Phone
(415) 925-5000
Enumerated
Sep 26, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(415) 925-5050
Medicaid ID
00G168250 CA
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 specialist records → All 5,749 in California → Look up another NPI →

Also registered at 1350 S Eliseo Dr

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

  1. John Bettinger, M.D.Gastroenterology Physician1225037500
  2. David Bloom, MDGastroenterology Physician1619931011
  3. Crystal Brierton, MA CCC-SLPSpeech-Language Pathologist1679127716
  4. Linda Clem, PAPhysician Assistant1104899772
  5. Ilkcan Cokgor, M.D.Neurology Physician1235100603
  6. Timothy Crowley, M.D.Specialist1669573937

Verify David S. Gullion 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 G16825    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

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David S. Gullion among 5,749 specialist records in California

David S. Gullion, M.D. is one of 5,749 specialist records with a practice address in California. 30% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 60% newer
  • In a Medicare fileNo · 30% of these records are
  • In the CMS Doctors and Clinicians fileNo · 19% of these records are
  • Record last updated2007 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

9 specialist records list a practice address in Greenbrae

They are 9 of the 727 NPPES records with a practice address in Greenbrae, and 5,749 specialist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 5,749 in California → Every provider in Greenbrae → Specialist nationwide →

The 8 specialist records with the nearest ZIP codes

  1. Shahla Chehrazi, M.D.Kentfield, CA 949041487761995
  2. Timothy Crowley, M.D.Greenbrae, CA 949041669573937
  3. Peter Eisenberg, M.D.Greenbrae, CA 949041205937646
  4. Bobbie Head, M.D., PHDGreenbrae, CA 949041053412403
  5. Lawrence Levy, M.D.Greenbrae, CA 949041780609750
  6. Jennifer Lucas, M.D.Greenbrae, CA 949041619078979
  7. Ripple Sharma, M.D.Greenbrae, CA 949041205003167
  8. Sae Sohn, M.D.Greenbrae, CA 949041730104753

Common questions

What is David S. Gullion, M.D.'s NPI number?

David S. Gullion, M.D.'s National Provider Identifier (NPI) is 1639270986, issued on Sep 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is David S. Gullion, M.D. located?

The NPPES record lists a practice address at 1350 S Eliseo Dr, Greenbrae, CA, 94904. Phone: (415) 925-5000. Providers update this record themselves, so call before visiting.

How can I verify David S. Gullion, M.D.'s license?

NPPES lists California license number G16825, 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.