Brian Matthew Gilliss, M.D. M.S.
Anesthesiology Physician · San Francisco, CA
Brian Matthew Gilliss, M.D. M.S. is an anesthesiology physician with a practice address in San Francisco, California, and NPI 1477833291, issued on Aug 24, 2011. Check the license (California 119145, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Brian Matthew Gilliss
- Credential
- M.D. M.S.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 119145 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4150 Clement St, San Francisco, CA 94121
- Phone
- (415) 221-4810
- Enumerated
- Aug 24, 2011
- Record last updated
- Dec 21, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 4150 Clement St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Brian Matthew Gilliss in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 119145Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Brian Matthew Gilliss among 7,571 anesthesiology physician records in California
Brian Matthew Gilliss, M.D. M.S. is one of 7,571 anesthesiology physician records with a practice address in California. 71% 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 2011, is newer than 68% of them.
- NPI issued2011 · 68% of these records are older, 30% newer
- In a Medicare fileNo · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2021 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
499 anesthesiology physician records list a practice address in San Francisco
They are 499 of the 38,143 NPPES records with a practice address in San Francisco, and 7,571 anesthesiology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 7,571 in California → Every provider in San Francisco → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Asmina Khan, MDSan Francisco, CA 941211942372693
- Donald Koblin, MDSan Francisco, CA 941211245275023
- Marilyn Michelow, M.D.San Francisco, CA 941211801159074
- Gerard Ozanne, M.D.San Francisco, CA 941211770529604
- Alex RussellSan Francisco, CA 941211417585423
- Arthur Wallace, M.D., PH.D.San Francisco, CA 941211366476418
- Emily Ginsburg, MDSan Francisco, CA 941221346370327
- Dylan Masters, MDSan Francisco, CA 941221215399589
Common questions
What is Brian Matthew Gilliss, M.D. M.S.'s NPI number?
Brian Matthew Gilliss, M.D. M.S.'s National Provider Identifier (NPI) is 1477833291, issued on Aug 24, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Brian Matthew Gilliss, M.D. M.S. located?
The NPPES record lists a practice address at 4150 Clement St, San Francisco, CA, 94121. Phone: (415) 221-4810. Providers update this record themselves, so call before visiting.
How can I verify Brian Matthew Gilliss, M.D. M.S.'s license?
NPPES lists California license number 119145, 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.