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Compare the published Medicare service mix of David Dwight Goltra, M.D. with clinicians in the same registry specialty: Diagnostic Radiology (CMS).

SC · Exact areaEdit location

2024 published service data · 24 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Andrew Fayette Barnes, M.D.

Diagnostic Radiology (CMS) · Charleston, SC

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of hand, minimum of 3 views (73130)
  • X-ray of shoulder, minimum of 2 views (73030)
39%Service-mix similarityView profile →

Douglas Mitchell Mcconnell, MD

Diagnostic Radiology (CMS) · Columbia, SC

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of hand, minimum of 3 views (73130)
  • X-ray of shoulder, minimum of 2 views (73030)
38%Service-mix similarityView profile →

Harry Simms Hardin, M.D.

Diagnostic Radiology (CMS) · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of hand, minimum of 3 views (73130)
  • X-ray of shoulder, minimum of 2 views (73030)
37%Service-mix similarityView profile →

Nicholas C. Shaheen, MD

Diagnostic Radiology (CMS) · Mount Pleasant, SC

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of hand, minimum of 3 views (73130)
  • X-ray of shoulder, minimum of 2 views (73030)
34%Service-mix similarityView profile →

Vivek Singh, MD

Diagnostic Radiology (CMS) · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of hand, minimum of 3 views (73130)
  • X-ray of shoulder, minimum of 2 views (73030)
34%Service-mix similarityView profile →

Lee Allen Madeline, MD

Diagnostic Radiology (CMS) · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • X-ray of hand, minimum of 3 views (73130)
  • X-ray of shoulder, minimum of 2 views (73030)
  • X-ray of knee, 3 views (73562)
30%Service-mix similarityView profile →

Michael Knipfing, D.O.

Diagnostic Radiology (CMS) · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of shoulder, minimum of 2 views (73030)
  • Ct scan of cranial cavity without contrast (70480)
29%Service-mix similarityView profile →

Rodney G Shaffer, MD

Diagnostic Radiology (CMS) · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of hand, minimum of 3 views (73130)
  • X-ray of shoulder, minimum of 2 views (73030)
29%Service-mix similarityView profile →

Jake Joyner Davenport, M.D.

Diagnostic Radiology (CMS) · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of hand, minimum of 3 views (73130)
  • X-ray of shoulder, minimum of 2 views (73030)
28%Service-mix similarityView profile →

Joseph Clayton Holladay, M.D.

Diagnostic Radiology (CMS) · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of hand, minimum of 3 views (73130)
  • X-ray of shoulder, minimum of 2 views (73030)
28%Service-mix similarityView profile →

Richard Christopher Leach, M.D.

Diagnostic Radiology (CMS) · Greenville, SC

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of shoulder, minimum of 2 views (73030)
  • Ct scan of cranial cavity without contrast (70480)
27%Service-mix similarityView profile →

Mark Krycia, MD

Diagnostic Radiology (CMS) · Florence, SC

Shared published services
3 shared services · view billing descriptions
  • Mri scan of lower spinal canal without contrast (72148)
  • Mri scan of upper spinal canal without contrast (72141)
  • X-ray of chest, 2 views (71046)
25%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.