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Compare the published Medicare service mix of Samuel B Pollock, M.D. with clinicians in the same registry specialty: Cardiac Surgery · Thoracic Surgery (CMS).

LOUISVILLE, KY · Exact areaEdit location

2024 published service data · 18 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Erin Schumer, MD

General Surgery · Thoracic Surgery (CMS) · Louisville, KY

Shared published services
3 shared services · view billing descriptions
  • Harvest of vein using an endoscope (33508)
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Exclusion of appendage of left upper chamber of heart performed during other procedure on chest (33268)
70%Service-mix similarityView profile →

Steven Michael Peterson, M.D.

Thoracic Surgery (CMS) · Louisville, KY

Shared published services
3 shared services · view billing descriptions
  • Harvest of vein using an endoscope (33508)
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Exclusion of appendage of left upper chamber of heart performed during other procedure on chest (33268)
53%Service-mix similarityView profile →

Kevin Alexander Graham, M.D.

Cardiac Surgery (CMS) · Louisville, KY

Shared published services
3 shared services · view billing descriptions
  • Harvest of vein using an endoscope (33508)
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Coronary artery bypass using vein or artery graft, 3 grafts (33519)
50%Service-mix similarityView profile →

Steven Wayne Etoch, MD

Vascular Surgery (CMS) · Louisville, KY

Shared published services
3 shared services · view billing descriptions
  • Harvest of vein using an endoscope (33508)
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Coronary artery bypass using vein or artery graft, 3 grafts (33519)
48%Service-mix similarityView profile →

Siddharth Pahwa

Cardiac Surgery (CMS) · Louisville, KY

Shared published services
2 shared services · view billing descriptions
  • Harvest of vein using an endoscope (33508)
  • Coronary artery bypass using artery graft, 1 graft (33533)
47%Service-mix similarityView profile →

Sebastian Pagni, M.D.

Cardiac Surgery · Thoracic Surgery · Vascular Surgery (CMS) · Louisville, KY

Shared published services
3 shared services · view billing descriptions
  • Harvest of vein using an endoscope (33508)
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Exclusion of appendage of left upper chamber of heart performed during other procedure on chest (33268)
46%Service-mix similarityView profile →

Mariano Camporrotondo, MD

Thoracic Surgery (CMS) · Louisville, KY

Shared published services
3 shared services · view billing descriptions
  • Harvest of vein using an endoscope (33508)
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and (G0180)
40%Service-mix similarityView profile →

Brian Lee Ganzel, M.D.

Cardiac Surgery (CMS) · Louisville, KY

Shared published services
2 shared services · view billing descriptions
  • Harvest of vein using an endoscope (33508)
  • Coronary artery bypass using artery graft, 1 graft (33533)
30%Service-mix similarityView profile →

David Harrison Rosenbaum, MD

Thoracic Surgery (CMS) · Louisville, KY

Shared published services
1 shared services · view billing descriptions
  • Coronary artery bypass using artery graft, 1 graft (33533)
19%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.