Doctor profile · Federal record

Dr. Katelyn Gamson, M.D.

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

  • NPI 1679899736
  • Accepts Medicare
  • MIPS 87.4 / 100 · 2023
  • 16 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2351 Clay St, Suite 380
San Francisco, CA 941151931
(415) 600-3954

Credentials & registration

NPPES · NUCC
NPI registered
April 2010 — 16 yrs on file
Profile last updated
July 30, 2015
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A120331

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1679899736. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
623
Distinct HCPCS
7
Medicare allowed
$84,193
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 329 125 $132
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 91 89 $193
99239 Hospital discharge day management, more than 30 minutes 81 80 $129
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 42 16 $88
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and 38 35 $63
99497 Advance care planning, first 30 minutes 22 20 $84
99291 Critical care, first 30-74 minutes 20 17 $232

In context: peer comparison

Among 236 peers in this city , average services per provider: 93. This provider delivers 6.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
15
Patients
13
Total drug cost
$273
Drug Type Claims Patients Total cost
Pantoprazole Sodium Generic 15 13 $273

Frequently asked questions

Auto-generated from federal data
What is Dr. Katelyn Gamson's medical specialty?
Dr. Katelyn Gamson practices Internal Medicine Physician in San Francisco, CA.
Where does Dr. Katelyn Gamson practice?
Dr. Katelyn Gamson practices at 2351 Clay St, San Francisco, CA 941151931. Office phone: 4156003954.
What is Dr. Katelyn Gamson's NPI?
Dr. Katelyn Gamson's National Provider Identifier (NPI) is 1679899736, issued by NPPES.
Does Dr. Katelyn Gamson accept Medicare assignment?
Yes. Dr. Katelyn Gamson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Katelyn Gamson commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.