Doctor profile · Federal record

Dr. Peter Barish, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · San Francisco, CA

  • NPI 1366861379
  • Accepts Medicare
  • 12 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
500 Parnassus Ave
San Francisco, CA 941432203
(415) 502-1967

Credentials & registration

NPPES · NUCC
NPI registered
April 2014 — 12 yrs on file
Profile last updated
October 1, 2019
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A150156

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1366861379. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
415
Distinct HCPCS
5
Medicare allowed
$52,519
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 195 65 $134
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 116 62 $89
99239 Hospital discharge day management, more than 30 minutes 46 45 $129
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 32 32 $196
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 26 26 $146

In context: peer comparison

Among 236 peers in this city , average services per provider: 93. This provider delivers 4.5× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Peter Barish's medical specialty?
Dr. Peter Barish practices Internal Medicine Physician in San Francisco, CA.
Where does Dr. Peter Barish practice?
Dr. Peter Barish practices at 500 Parnassus Ave, San Francisco, CA 941432203. Office phone: 4155021967.
What is Dr. Peter Barish's NPI?
Dr. Peter Barish's National Provider Identifier (NPI) is 1366861379, issued by NPPES.
Does Dr. Peter Barish accept Medicare assignment?
Yes. Dr. Peter Barish accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Peter Barish commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.