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Compare the published Medicare service mix of William Alan Marchio with clinicians in the same registry specialty: Anesthesiology.

LAS VEGAS, NV · Exact areaEdit location

2024 published service data · 202 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Benjamin David Garol, M.D.

Anesthesiology · Las Vegas, NV

Shared published services
2 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)
71%Service-mix similarityView profile →

Rehan Amir, MD

Anesthesiology · Las Vegas, NV

Shared published services
1 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
71%Service-mix similarityView profile →

Earl Robert G Ang, MD

Anesthesiology · Las Vegas, NV

Shared published services
1 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
71%Service-mix similarityView profile →

Fu Wang, MD

Anesthesiology · Las Vegas, NV

Shared published services
2 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)
53%Service-mix similarityView profile →

Daniel R Blake, DO

Anesthesiology · Las Vegas, NV

Shared published services
1 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
51%Service-mix similarityView profile →

James Dee

Anesthesiology · Las Vegas, NV

Shared published services
1 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
47%Service-mix similarityView profile →

Edward R Solis, DO

Anesthesiology · Las Vegas, NV

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 →

Anastacia Munro, MD

Anesthesiology · Las Vegas, NV

Shared published services
1 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
44%Service-mix similarityView profile →

Christian Israel Garaycochea, MD

Anesthesiology · Las Vegas, NV

Shared published services
1 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
42%Service-mix similarityView profile →

Taying Yang, M.D.

Anesthesiology · Las Vegas, NV

Shared published services
2 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)
41%Service-mix similarityView profile →

Michael Y Chang, MD

Anesthesiology · Las Vegas, NV

Shared published services
1 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
40%Service-mix similarityView profile →

Paul David Schanbacher, MD

Anesthesiology · Las Vegas, NV

Shared published services
1 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
38%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.