Katelyn Gamson, M.D.
NPI 1679899736 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katelyn Gamson, M.D. is a Internal Medicine Physician provider in San Francisco, CA (NPI 1679899736).
Provider details
- NPI number
- 1679899736
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A120331 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
532 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 266 | $132 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 85 | $194 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 65 | $130 |
| Critical Care, First 30-74 Minutes99291 | 36 | $233 |
| Advance Care Planning, First 30 Minutes99497 | 36 | $85 |
| 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 andG0180 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-04-14
- Last updated
- 2015-07-30
Frequently asked questions
- What is Katelyn Gamson's NPI number?
- Katelyn Gamson's National Provider Identifier (NPI) is 1679899736, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katelyn Gamson's specialty?
- Katelyn Gamson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katelyn Gamson located?
- Katelyn Gamson's practice location on file with NPPES is 2351 Clay St, San Francisco, CA 94115-1931.
- What is Katelyn Gamson's phone number?
- The practice phone number listed in the NPPES registry for Katelyn Gamson is (415) 600-3954.
- Does Katelyn Gamson accept Medicare?
- Katelyn Gamson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katelyn Gamson's NPI active?
- Yes — Katelyn Gamson's NPI (1679899736) is active in the NPPES registry as of the last update on 2015-07-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.