Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Peter Barish, MD

Individual provider Internal Medicine Physician · NPI 1366861379

Peter Barish, MD practises Internal Medicine in San Francisco, California. Qualified in 2014, 12 years ago. Practices with Regents of the University of California, a 717-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
12
Licensed in
CA
In the registry since
2014
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

500 Parnassus Ave
San Francisco, CA 94143-2203
Phone: (415) 502-1967
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A150156 (CA)

Record details

NPI number1366861379
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 8, 2014
Last updated in NPPESOctober 1, 2019

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Regents Of The University Of California — 717 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients95
Services billed 309 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Ucsf Medical Center Hospital · San Francisco, CA
  • Ucsf Health St. Mary'S Hospital Hospital · San Francisco, CA

Colleagues at Regents of the University of California

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 717 clinicians in the practice; 12 are shown here.

Other providers in San Francisco