John R. Phirman, M.D.
Anesthesiology Physician · San Luis Obispo, CA
John R. Phirman, M.D. is an anesthesiology physician with a practice address in San Luis Obispo, California, and NPI 1871589044, issued on Sep 23, 2005. Check the license (California G14252, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John R. Phirman
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- G14252 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1301 Ella Street, San Luis Obispo, CA 93401
- Phone
- (805) 928-1731
- Enumerated
- Sep 23, 2005
- Record last updated
- Sep 12, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (805) 349-8160
- Medicaid ID
- 00G142520 CA
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Verify John R. Phirman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G14252Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John R. Phirman among 7,571 anesthesiology physician records in California
John R. Phirman, M.D. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileNo · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2007 · 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).
Anesthesiology Physician providers in California
There are 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 Luis Obispo → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Glenn Engelman, D.O.San Luis Obispo, CA 934011417307745
- Sundarampillai Jeyanandarajan, M.D.San Luis Obispo, CA 934011326034372
- Grace Kim, M.D.San Luis Obispo, CA 934011740276989
- Ryan Pieterick, MDSan Luis Obispo, CA 934011144751983
- Owen Shea, M.D.San Luis Obispo, CA 934011679569628
- Julie Smelser, M.D.San Luis Obispo, CA 934011568458511
- John Stevenson, M.D.San Luis Obispo, CA 934011184088254
- Amanda Westman, DOSan Luis Obispo, CA 934011568819662
Common questions
What is John R. Phirman, M.D.'s NPI number?
John R. Phirman, M.D.'s National Provider Identifier (NPI) is 1871589044, issued on Sep 23, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John R. Phirman, M.D. located?
The NPPES record lists a practice address at 1301 Ella Street, San Luis Obispo, CA, 93401. Phone: (805) 928-1731. Providers update this record themselves, so call before visiting.
How can I verify John R. Phirman, M.D.'s license?
NPPES lists California license number G14252, 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.