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Compare the published Medicare service mix of Michael William Roberts, MD with clinicians in the same registry specialty: Anesthesiology.

NORMAN, OK · Exact areaEdit location

2024 published service data · 12 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Quentin Lobb, M.D.

Anesthesiology · Norman, OK

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
60%Service-mix similarityView profile →

John Billy Hill, DO

Anesthesiology · Norman, OK

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on urinary system through urethra (00910)
  • Anesthesia for other procedure on skin, muscles, or nerves of head, neck, and upper back (00300)
  • Anesthesia for fragmenting, manipulation and/or removal of kidney stone including use of an endoscope (00918)
50%Service-mix similarityView profile →

Melissa Jean Jennings, M.D.

Anesthesiology · Norman, OK

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
48%Service-mix similarityView profile →

Anderson F Greenhaw, M.D.

Anesthesiology · Norman, OK

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
47%Service-mix similarityView profile →

Mason Clawdell Lawrence, MD

Anesthesiology · Norman, OK

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on urinary system through urethra (00910)
  • Anesthesia for other procedure on skin, muscles, or nerves of head, neck, and upper back (00300)
  • Anesthesia for other procedure on upper abdomen (00790)
31%Service-mix similarityView profile →

Scott Michael Proctor, M.D.

Anesthesiology · Norman, OK

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on lower spine (00630)
  • Anesthesia for fragmenting, manipulation and/or removal of kidney stone including use of an endoscope (00918)
  • Anesthesia for other procedure on upper abdomen (00790)
27%Service-mix similarityView profile →

Joe Don Voto, M.D.

Anesthesiology · Norman, OK

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for other procedure on urinary system through urethra (00910)
  • Anesthesia for fragmenting, manipulation and/or removal of kidney stone including use of an endoscope (00918)
  • Anesthesia for removal of prostate including use of an endoscope (00914)
15%Service-mix similarityView profile →

Michael L Mullins, MD

Anesthesiology · Norman, OK

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for other procedure on upper abdomen (00790)
11%Service-mix similarityView profile →

Shane Edward Stidham, M.D.

Anesthesiology · Norman, OK

Shared published services
2 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
  • Anesthesia for other procedure on top of arm bone and shoulder joint (01630)
9%Service-mix similarityView profile →

John Patrick Sullivan, MD

Anesthesiology · Norman, OK

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for procedure on anus and rectum (00902)
7%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.