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Compare the published Medicare service mix of Sara Fohn Mcwilliams, M.D. 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.

Jerry Alan Beyer, M.D.

Anesthesiology · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Anesthesia for procedure for total knee joint replacement (01402)
67%Service-mix similarityView profile →

Esteban Romero Arredondo, MD

Anesthesiology · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on upper abdomen (00790)
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
60%Service-mix similarityView profile →

James A Davenport, M.D.

Anesthesiology · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on upper abdomen (00790)
  • Anesthesia for other procedure on lower abdomen (00840)
  • Anesthesia for other procedure on top of arm bone and shoulder joint (01630)
59%Service-mix similarityView profile →

Jaime E Torres, MD

Anesthesiology · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Anesthesia for procedure for total knee joint replacement (01402)
53%Service-mix similarityView profile →

Jacques Yiyang Zhang, DO

Anesthesiology · San Antonio, TX

Shared published services
2 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Anesthesia for procedure for total knee joint replacement (01402)
53%Service-mix similarityView profile →

Aryan Matthew Pashaei-Marandi, MD

Anesthesiology · San Antonio, TX

Shared published services
2 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Anesthesia for procedure for total knee joint replacement (01402)
53%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 upper abdomen (00790)
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
51%Service-mix similarityView profile →

James Harold Vernier, M.D.

Anesthesiology · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on upper abdomen (00790)
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
50%Service-mix similarityView profile →

Mickey Brandon Dobson, MD

Anesthesiology · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Anesthesia for procedure for total knee joint replacement (01402)
50%Service-mix similarityView profile →

Eduardo Enrique Moreno, MD

Anesthesiology · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Anesthesia for procedure for total knee joint replacement (01402)
50%Service-mix similarityView profile →

Mark Calvin Robertson, M.D.

Anesthesiology · San Antonio, TX

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on upper abdomen (00790)
  • Anesthesia for other procedure on lower abdomen (00840)
  • Anesthesia for procedure for total knee joint replacement (01402)
49%Service-mix similarityView profile →

Keith A. Fleming, M.D.

Anesthesiology · San Antonio, TX

Shared published services
2 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Anesthesia for procedure for total knee joint replacement (01402)
48%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.