HCPList Know more before you call. About
A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Jane Fang, M.D. with clinicians in the same registry specialty: Obstetrics/Gynecology (CMS).

SAN FRANCISCO, CA · Exact areaEdit location

2024 published service data · 28 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Poornima Kaul, MD

Obstetrics/Gynecology (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
73%Service-mix similarityView profile →

Karen Callen, M.D.

Obstetrics/Gynecology (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
53%Service-mix similarityView profile →

Katherine Gregory, M.D.

Obstetrics/Gynecology (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)
49%Service-mix similarityView profile →

James Henry Reed, M.D.

Gastroenterology · Internal Medicine (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
28%Service-mix similarityView profile →

Margaret C Scully, MD

Dermatology (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
26%Service-mix similarityView profile →

Kevin Michael Man, M.D.

Gastroenterology · Internal Medicine (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
24%Service-mix similarityView profile →

Seth Lawrence Matarasso, MD

Dermatology (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
23%Service-mix similarityView profile →

Ruby Ghadially, M.D.

Dermatology (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
21%Service-mix similarityView profile →

Monica Mehrali Dahlem, MD

Dermatology (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
19%Service-mix similarityView profile →

Schuman Tam, M.D.

Allergy/Immunology (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)
13%Service-mix similarityView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in NPI order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.