A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Janna Hartman, MD with clinicians in the same registry specialty: Anesthesiology.

SAN ANTONIO, TX · Exact areaEdit location

2024 published service data · 207 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Brian Rubin, M.D.

Anesthesiology · San Antonio, TX

Shared published services
1 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
45%Service-mix similarityView profile →

Erik John Koppang, M.D.

Anesthesiology · San Antonio, TX

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for other procedure on skin of arms, legs, and front body (00400)
45%Service-mix similarityView profile →

Cindy Johnson Gleason, M.D.

Anesthesiology · San Antonio, TX

Shared published services
1 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
45%Service-mix similarityView profile →

David F. Davis, M.D.

Anesthesiology · San Antonio, TX

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for other procedure on skin of arms, legs, and front body (00400)
45%Service-mix similarityView profile →

Julia Anne Bustamante, MD

Anesthesiology · San Antonio, TX

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for other procedure on urinary system through urethra (00910)
44%Service-mix similarityView profile →

Byron Harris Anson, M.D.

Anesthesiology · San Antonio, TX

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for other procedure on lower abdomen outside abdominal cavity (00860)
34%Service-mix similarityView profile →

Jacques Yiyang Zhang, DO

Anesthesiology · San Antonio, TX

Shared published services
1 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
33%Service-mix similarityView profile →

Gary Richard Cohen, M.D.

Anesthesiology · San Antonio, TX

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for other procedure on lower abdomen outside abdominal cavity (00860)
  • Anesthesia for other procedure on urinary system through urethra (00910)
33%Service-mix similarityView profile →

Natalie R. Kahanek, M.D.

Anesthesiology · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on skin of arms, legs, and front body (00400)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Anesthesia for other procedure on urinary system through urethra (00910)
33%Service-mix similarityView profile →

Kathryn R Hamilton, MD

Anesthesiology · San Antonio, TX

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for other procedure on skin of arms, legs, and front body (00400)
33%Service-mix similarityView profile →

Aryan Matthew Pashaei-Marandi, MD

Anesthesiology · San Antonio, TX

Shared published services
1 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
32%Service-mix similarityView profile →

Frederic Daniel Wile, M.D.

Anesthesiology · San Antonio, TX

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for other procedure on lower abdomen outside abdominal cavity (00860)
  • Anesthesia for other procedure on urinary system through urethra (00910)
32%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.