A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Thomas James Zeyl, M.D. with clinicians in the same registry specialty: Cardiac Surgery · General Surgery · Thoracic Surgery (CMS).

GAINESVILLE, FL · Exact areaEdit location

2024 published service data · 15 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Lourens Johan Willekes, M.D.

Cardiac Surgery · Thoracic Surgery (CMS) · Gainesville, FL

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)
  • Replacement of aortic valve through the skin and femoral artery (33361)
91%Service-mix similarityView profile →

Stephen K Ball, MD

Cardiac Surgery · Thoracic Surgery (CMS) · Gainesville, FL

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)
  • Replacement of aortic valve through the skin and femoral artery (33361)
73%Service-mix similarityView profile →

George John Arnaoutakis, M.D.

Thoracic Surgery (CMS) · Gainesville, FL

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)
  • Replacement of aortic valve through the skin and femoral artery (33361)
61%Service-mix similarityView profile →

Hiep Cong Nguyen, MD

Cardiac Surgery · General Surgery · Thoracic Surgery (CMS) · Gainesville, FL

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)
  • Replacement of aortic valve through the skin and femoral artery (33361)
54%Service-mix similarityView profile →

Jeffery S Snyder, MD

Cardiac Surgery · Thoracic Surgery (CMS) · Gainesville, FL

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)
52%Service-mix similarityView profile →

Evaristo Fernandez Sada, M.D.

Thoracic Surgery (CMS) · Gainesville, FL

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)
49%Service-mix similarityView profile →

Charles T Klodell, MD

General Surgery · Thoracic Surgery (CMS) · Gainesville, FL

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)
  • Replacement of aortic valve through the skin and femoral artery (33361)
43%Service-mix similarityView profile →

Eduardo Esper, MD

Cardiac Surgery · Thoracic Surgery (CMS) · Gainesville, FL

Shared published services
1 shared services · view billing descriptions
  • Coronary artery bypass using artery graft, 1 graft (33533)
19%Service-mix similarityView profile →

John Robert Spratt, M.D.

General Surgery · Thoracic Surgery (CMS) · Gainesville, FL

Shared published services
1 shared services · view billing descriptions
  • Replacement of aortic valve through the skin and femoral artery (33361)
18%Service-mix similarityView profile →

Thomas M. Beaver, MD

General Surgery · Thoracic Surgery (CMS) · Gainesville, FL

Shared published services
1 shared services · view billing descriptions
  • Replacement of aortic valve through the skin and femoral artery (33361)
17%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.