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Compare the published Medicare service mix of Thomas Sigurd Griggs, MD with clinicians in the same registry specialty: Diagnostic Radiology (CMS).

OKLAHOMA CITY, OK · Exact areaEdit location

2024 published service data · 106 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Joel R Thomas, MD

Diagnostic Radiology (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
87%Service-mix similarityView profile →

Samuel Brandon Hancock, MD

Diagnostic Radiology (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
86%Service-mix similarityView profile →

James Lawrence Hendrix, MD

Diagnostic Radiology (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
85%Service-mix similarityView profile →

Alyssa Mize, M.D.

Diagnostic Radiology (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
85%Service-mix similarityView profile →

Rafel Alvarez, D.O.

Diagnostic Radiology (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
84%Service-mix similarityView profile →

Byron H Christie, MD

Diagnostic Radiology (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
84%Service-mix similarityView profile →

Scott Douglass Prater, M.D.

Diagnostic Radiology · Interventional Radiology (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
83%Service-mix similarityView profile →

Angela Michele Mccoy, MD

Diagnostic Radiology (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
83%Service-mix similarityView profile →

Timothy Yates, MD

Diagnostic Radiology (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
82%Service-mix similarityView profile →

Nathan Edward Myatt, D.O.

Diagnostic Radiology (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
82%Service-mix similarityView profile →

James Anthony Glenn, D.O.

Diagnostic Radiology (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
82%Service-mix similarityView profile →

Christopher Brett Nelson, M.D.

Diagnostic Radiology (CMS) · Oklahoma City, OK

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
81%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.