Mateusz Firchal, PA-C
Physician Assistant · Stanford, CA
Mateusz Firchal, PA-C is a physician assistant with a practice address in Stanford, California, and NPI 1023812336, issued on Apr 3, 2025. Check the license (California 66438, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mateusz Firchal
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 66438 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Stanford, CA 94305
- Phone
- (650) 723-4000
- Enumerated
- Apr 3, 2025
- Record last updated
- Jul 30, 2025
- Medicare enrollment
- Enrolled (PECOS I20250709001536); accepts Medicare assignment
- Entity
- Type 1 · individual
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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- Fahim Abbasi, M.D.Internal Medicine Physician1841484037
- Mohamad Abbass, MDNeurological Surgery Physician1679492151
Verify Mateusz Firchal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 66438Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
One hospital affiliation
- Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
480 physician assistant records list a practice address in Stanford
They are 480 of the 5,606 NPPES records with a practice address in Stanford, and 14,451 physician assistant records in California.
All 480 in Stanford → All 14,451 in California → Every provider in Stanford →
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Common questions
What is Mateusz Firchal, PA-C's NPI number?
Mateusz Firchal, PA-C's National Provider Identifier (NPI) is 1023812336, issued on Apr 3, 2025. An NPI identifies a provider in billing; it is not a license.
Where is Mateusz Firchal, PA-C located?
The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.
How can I verify Mateusz Firchal, PA-C's license?
NPPES lists California license number 66438, 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. 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.