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Compare the published Medicare service mix of Rex B Williams, M.D. with clinicians in the same registry specialty: Anesthesiology · Pain Management (CMS).

MS · Exact areaEdit location

2024 published service data · 30 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Michael Cody Scarbrough, MD

Anesthesiology · Interventional Pain Management · Pain Management (CMS) · Corinth, MS

Shared published services
3 shared services · view billing descriptions
  • Injection of substance into lower spine canal using imaging guidance (62323)
  • Injection of lower or sacral spine facet joint using imaging guidance, single level (64493)
  • Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance (27096)
87%Service-mix similarityView profile →

Landon Tyler Burns, M.D.

Anesthesiology · Pain Management (CMS) · Flowood, MS

Shared published services
3 shared services · view billing descriptions
  • Injection of substance into lower spine canal using imaging guidance (62323)
  • Injection of lower or sacral spine facet joint using imaging guidance, single level (64493)
  • Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance (27096)
80%Service-mix similarityView profile →

Jackson Walters, MD

Anesthesiology · Interventional Pain Management (CMS) · Columbus, MS

Shared published services
3 shared services · view billing descriptions
  • Injection of substance into lower spine canal using imaging guidance (62323)
  • Injection of lower or sacral spine facet joint using imaging guidance, single level (64493)
  • Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance (27096)
80%Service-mix similarityView profile →

David Loflin Mckellar, MD

Interventional Pain Management (CMS) · Hattiesburg, MS

Shared published services
3 shared services · view billing descriptions
  • Injection of substance into lower spine canal using imaging guidance (62323)
  • Injection of lower or sacral spine facet joint using imaging guidance, single level (64493)
  • Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance (27096)
77%Service-mix similarityView profile →

Dennis Ryan Marcelo, M.D.

Anesthesiology (CMS) · Jackson, MS

Shared published services
3 shared services · view billing descriptions
  • Injection of substance into lower spine canal using imaging guidance (62323)
  • Injection of lower or sacral spine facet joint using imaging guidance, single level (64493)
  • Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance (27096)
72%Service-mix similarityView profile →

Jonathan H.s. Rayburn, MD

Pain Management (CMS) · Hattiesburg, MS

Shared published services
3 shared services · view billing descriptions
  • Injection of substance into lower spine canal using imaging guidance (62323)
  • Injection of lower or sacral spine facet joint using imaging guidance, single level (64493)
  • Injection of lower or sacral spine facet joint using imaging guidance, second level (64494)
72%Service-mix similarityView profile →

Neilson Vuong Tran, MD

Anesthesiology · Pain Management (CMS) · Bay St Louis, MS

Shared published services
3 shared services · view billing descriptions
  • Injection of substance into lower spine canal using imaging guidance (62323)
  • Injection of lower or sacral spine facet joint using imaging guidance, single level (64493)
  • Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance (27096)
68%Service-mix similarityView profile →

Thomas Buford, DO

Anesthesiology · Interventional Pain Management (CMS) · Flowood, MS

Shared published services
3 shared services · view billing descriptions
  • Injection of substance into lower spine canal using imaging guidance (62323)
  • Injection of lower or sacral spine facet joint using imaging guidance, single level (64493)
  • Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance (27096)
68%Service-mix similarityView profile →

Alan J Torrey, M.D.

Anesthesiology · Pain Management (CMS) · Vicksburg, MS

Shared published services
3 shared services · view billing descriptions
  • Injection of substance into lower spine canal using imaging guidance (62323)
  • Injection of lower or sacral spine facet joint using imaging guidance, single level (64493)
  • Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance (27096)
67%Service-mix similarityView profile →

Ahmed Abdel Aziz, MD

Pain Management (CMS) · Greenwood, MS

Shared published services
3 shared services · view billing descriptions
  • Injection of substance into lower spine canal using imaging guidance (62323)
  • Injection of lower or sacral spine facet joint using imaging guidance, single level (64493)
  • Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance (27096)
65%Service-mix similarityView profile →

Robin D Nations, MD

Anesthesiology · Pain Management (CMS) · Brookhaven, MS

Shared published services
3 shared services · view billing descriptions
  • Injection of substance into lower spine canal using imaging guidance (62323)
  • Injection of lower or sacral spine facet joint using imaging guidance, single level (64493)
  • Injection of lower or sacral spine facet joint using imaging guidance, second level (64494)
62%Service-mix similarityView profile →

Eric Pearson, MD

Anesthesiology · Interventional Pain Management (CMS) · Meridian, MS

Shared published services
3 shared services · view billing descriptions
  • Injection of lower or sacral spine facet joint using imaging guidance, single level (64493)
  • Injection of lower or sacral spine facet joint using imaging guidance, second level (64494)
  • Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (64483)
60%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.