Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Stephen James Matzat, MD

Individual provider Family Medicine Physician · NPI 1841855764

Dr. Stephen James Matzat, MD is a Family Practice in San Francisco, California. Graduated from Icahn School of Medicine at Mount Sinai in 2019, 7 years ago. Practices with City and County of San Francisco, a 369-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
7
Trained at
Icahn School of Medicine at Mount Sinai
Licensed in
CA
In the registry since
2019
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

995 Potrero Ave Bldg 80
San Francisco, CA 94110-2859
Phone: (831) 755-4123
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence A179041 (CA)

Record details

NPI number1841855764
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 6, 2019
Last updated in NPPESAugust 11, 2022
Certification dateAugust 11, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Graduated 2019 (7 years in practice)
Group practice City And County Of San Francisco — 369 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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