NPPES file of Aug 9, 2026

Grant Eaton Gauger, MD

Neurological Surgery Physician · San Francisco, CA

Grant Eaton Gauger, MD is a neurological surgery physician with a practice address in San Francisco, California, and NPI 1417901463, issued on May 22, 2006. Check the license (California C32850, 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
1417901463
Name
Grant Eaton Gauger
Credential
MD
Primary taxonomy
Neurological Surgery Physician 207T00000X
License number
C32850 CA
Self-reported in NPPES; status is on the state search
Practice location
1001 Potrero Avenue, San Francisco, CA 94110
Phone
(415) 206-3219
Enumerated
May 22, 2006
Record last updated
Jul 13, 2026
Fax
(415) 206-3948
Medicaid ID
00C328500 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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Also registered at 1001 Potrero Avenue

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

  1. James Allison, MDGastroenterology Physician1265535777
  2. Deborah Anderson, CNMRegistered Nurse1801821053
  3. Patrick AvilaGastroenterology Physician1114365699
  4. Amin Azzam, MDPsychiatry Physician1811927395
  5. Jennifer Babik, MDInternal Medicine Physician1457421208
  6. Roland Bainton, MDAnesthesiology Physician1376596213

Verify Grant Eaton Gauger in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C32850
    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

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Grant Eaton Gauger among 929 neurological surgery physician records in California

Grant Eaton Gauger, MD is one of 929 neurological surgery physician records with a practice address in California. 77% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 62% newer
  • In a Medicare fileNo · 77% of these records are
  • In the CMS Doctors and Clinicians fileNo · 66% of these records are
  • Record last updated2026 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurological Surgery Physician providers in California

There are 929 neurological surgery physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 neurological surgery physician records with the nearest ZIP codes

  1. Ernest BarthelemySan Francisco, CA 941101467871442
  2. William Corn, MDSan Francisco, CA 941101962457903
  3. Michael Huang, M.D.San Francisco, CA 941101760633770
  4. Mathieu Laroche, M.D., FRCSCSan Francisco, CA 941101801108980
  5. Geoffrey Manley, MD PHDSan Francisco, CA 941101588619241
  6. Guy Rosenthal, MDSan Francisco, CA 941101871547331
  7. Shirley Stiver, MD PHDSan Francisco, CA 941101508810904
  8. Lewis Leng, M.D.San Francisco, CA 941091508018508

Common questions

What is Grant Eaton Gauger, MD's NPI number?

Grant Eaton Gauger, MD's National Provider Identifier (NPI) is 1417901463, issued on May 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Grant Eaton Gauger, MD located?

The NPPES record lists a practice address at 1001 Potrero Avenue, San Francisco, CA, 94110. Phone: (415) 206-3219. Providers update this record themselves, so call before visiting.

How can I verify Grant Eaton Gauger, MD's license?

NPPES lists California license number C32850, 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.

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.