John Workman, M.D.
Anesthesiology Physician · Palo Alto, CA
John Workman, M.D. is an anesthesiology physician with a practice address in Palo Alto, California, and NPI 1326200247, issued on Jul 1, 2008. Check the license (California A109313, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Workman
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- A109313 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Palo Alto, CA 94305
- Phone
- (650) 723-7377
- Enumerated
- Jul 1, 2008
- Record last updated
- Feb 11, 2022
- Medicare enrollment
- Enrolled (PECOS I20120522000844); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 300 Pasteur Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Tracie Adamson, NPNurse Practitioner1982765145
- Aderinsola Aderonmu, MSStudent in an Organized Health Care Education/Training Program1083301196
- Akuvi Claude Adossou, MDStudent in an Organized Health Care Education/Training Program1093394504
- Reena Agrawal, MDPhysical Medicine & Rehabilitation Physician1720257520
Verify John Workman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A109313Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Permanente Medical Group IncSanta Clara, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Workman among 7,571 anesthesiology physician records in California
John Workman, 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. Its NPI, issued in 2008, is newer than 57% of them.
- NPI issued2008 · 57% of these records are older, 39% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2008 · median 2006 among the 4,868 with a school on file
- Record last updated2022 · 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).
111 anesthesiology physician records list a practice address in Palo Alto
They are 111 of the 7,617 NPPES records with a practice address in Palo Alto, and 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Palo Alto → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Aileen Adriano, MDStanford, CA 943051558311886
- Martin Angst, MDStanford, CA 943051386694529
- Rhett Atkinson, M.D.Stanford, CA 943051558328005
- Edward Baer, M.D.Stanford, CA 943051710945837
- William Bohman, M.D.Stanford, CA 943051265490387
- Bryan Bohman, MDStanford, CA 943051285692368
- Michael Champeau, M.D.Stanford, CA 943051538126099
- Anthony Doufas, MDStanford, CA 943051578531430
Common questions
What is John Workman, M.D.'s NPI number?
John Workman, M.D.'s National Provider Identifier (NPI) is 1326200247, issued on Jul 1, 2008. An NPI identifies a provider in billing; it is not a license.
Where is John Workman, M.D. located?
The NPPES record lists a practice address at 300 Pasteur Dr, Palo Alto, CA, 94305. Phone: (650) 723-7377. Providers update this record themselves, so call before visiting.
How can I verify John Workman, M.D.'s license?
NPPES lists California license number A109313, 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. Medicare files from data.cms.gov. 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.