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Compare the published Medicare service mix of Michael Thomas Drake, M.D. with clinicians in the same registry specialty: Anesthesiology.

GREENVILLE, SC · Exact areaEdit location

2024 published service data · 112 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

John William Martin, M.D.

Anesthesiology · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Injection of substance into lower spine canal using imaging guidance (62323)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
63%Service-mix similarityView profile →

Gregory L Enders, M.D.

Anesthesiology · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Injection of substance into lower spine canal using imaging guidance (62323)
  • Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (64483)
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
57%Service-mix similarityView profile →

David Milford Louis Hall, M.D.

Anesthesiology · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Injection of substance into lower spine canal using imaging guidance (62323)
  • Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (64483)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
54%Service-mix similarityView profile →

Sarah Anne Hensley, M.D.

Anesthesiology · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Injection of substance into lower spine canal using imaging guidance (62323)
  • Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (64483)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
54%Service-mix similarityView profile →

Rachel O'neal Cavenaugh, M.D.

Anesthesiology · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Injection of anesthetic agent and/or steroid into other nerve or branch (64450)
  • Anesthesia for procedure for total knee joint replacement (01402)
47%Service-mix similarityView profile →

Matthew Keith Hamilton, M.D.

Anesthesiology · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Injection of substance into lower spine canal using imaging guidance (62323)
  • Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (64483)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
44%Service-mix similarityView profile →

Martin D Whigham, MD

Anesthesiology · Greenville, SC

Shared published services
3 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)
  • Anesthesia for other procedure on large bowel using an endoscope (00811)
38%Service-mix similarityView profile →

Sherin Azmy, M.D.

Anesthesiology · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)
  • Ultrasonic guidance for needle placement (76942)
  • Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)
38%Service-mix similarityView profile →

David Brooks Duff, M.D.

Anesthesiology · Greenville, SC

Shared published services
3 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)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
38%Service-mix similarityView profile →

Matthew Benjamin Crumpler, M.D.

Anesthesiology · Greenville, SC

Shared published services
3 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)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
37%Service-mix similarityView profile →

Louis A Freedman, MD

Anesthesiology · Greenville, SC

Shared published services
3 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)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
36%Service-mix similarityView profile →

David Michael Vonclef, M.D.

Anesthesiology · Greenville, SC

Shared published services
3 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)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
36%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.