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Compare the published Medicare service mix of William C Van De Graaf, MD with clinicians in the same registry specialty: Anesthesiology.

AUSTIN, TX · Exact areaEdit location

2024 published service data · 142 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

John T Schlitt, MD

Anesthesiology · Austin, TX

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Other procedure on nervous system (64999)
  • Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter (64448)
67%Service-mix similarityView profile →

Prianka Desai, M.D.

Anesthesiology · Austin, TX

Shared published services
3 shared services · view billing descriptions
  • Other procedure on nervous system (64999)
  • Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter (64448)
  • Ultrasonic guidance for needle placement (76942)
67%Service-mix similarityView profile →

Grace L Bednar, M.D.

Anesthesiology · Austin, TX

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Other procedure on nervous system (64999)
  • Ultrasonic guidance for needle placement (76942)
62%Service-mix similarityView profile →

William D Nelson, MD

Anesthesiology · Austin, TX

Shared published services
3 shared services · view billing descriptions
  • Other procedure on nervous system (64999)
  • Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter (64448)
  • Ultrasonic guidance for needle placement (76942)
61%Service-mix similarityView profile →

Amy M Coffman, MD

Anesthesiology · Austin, TX

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Other procedure on nervous system (64999)
  • Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter (64448)
57%Service-mix similarityView profile →

Brett Allen Rebal, M.D.

Anesthesiology · Austin, TX

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Other procedure on nervous system (64999)
  • Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter (64448)
53%Service-mix similarityView profile →

Christopher Mark Chavez, MD

Anesthesiology · Austin, TX

Shared published services
3 shared services · view billing descriptions
  • Other procedure on nervous system (64999)
  • Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter (64448)
  • Ultrasonic guidance for needle placement (76942)
51%Service-mix similarityView profile →

James A Lyttle, MD

Anesthesiology · Austin, TX

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Other procedure on nervous system (64999)
  • Ultrasonic guidance for needle placement (76942)
51%Service-mix similarityView profile →

Barbara Dawn Sebastian, M.D.

Anesthesiology · Austin, TX

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Other procedure on nervous system (64999)
  • Ultrasonic guidance for needle placement (76942)
51%Service-mix similarityView profile →

Joel Todd Davidson, MD

Anesthesiology · Austin, TX

Shared published services
3 shared services · view billing descriptions
  • Other procedure on nervous system (64999)
  • Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter (64448)
  • Ultrasonic guidance for needle placement (76942)
46%Service-mix similarityView profile →

John David Westfall, M.D.

Anesthesiology · Austin, TX

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Other procedure on nervous system (64999)
  • Ultrasonic guidance for needle placement (76942)
46%Service-mix similarityView profile →

Christine Harrison, M.D.

Anesthesiology · Austin, TX

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
45%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.