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Compare the published Medicare service mix of Stephen K Ball, MD with clinicians in the same registry specialty: Cardiac 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
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Harvest of vein using an endoscope (33508)
  • Coronary artery bypass using vein or artery graft, 2 grafts (33518)
83%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
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Harvest of vein using an endoscope (33508)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
75%Service-mix similarityView profile →

Thomas James Zeyl, M.D.

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

Shared published services
3 shared services · view billing descriptions
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Harvest of vein using an endoscope (33508)
  • Replacement of aortic valve through the skin and femoral artery (33361)
73%Service-mix similarityView profile →

Evaristo Fernandez Sada, M.D.

Thoracic Surgery (CMS) · Gainesville, FL

Shared published services
3 shared services · view billing descriptions
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Harvest of vein using an endoscope (33508)
  • Coronary artery bypass using vein or artery graft, 2 grafts (33518)
66%Service-mix similarityView profile →

Jeffery S Snyder, MD

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

Shared published services
3 shared services · view billing descriptions
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Harvest of vein using an endoscope (33508)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
57%Service-mix similarityView profile →

Charles T Klodell, MD

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

Shared published services
3 shared services · view billing descriptions
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Harvest of vein using an endoscope (33508)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
51%Service-mix similarityView profile →

George John Arnaoutakis, M.D.

Thoracic Surgery (CMS) · Gainesville, FL

Shared published services
3 shared services · view billing descriptions
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Harvest of vein using an endoscope (33508)
  • Replacement of aortic valve through the skin and femoral artery (33361)
45%Service-mix similarityView profile →

Eduardo Esper, MD

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

Shared published services
2 shared services · view billing descriptions
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
25%Service-mix similarityView profile →

John Robert Spratt, M.D.

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

Shared published services
2 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Replacement of aortic valve through the skin and femoral artery (33361)
24%Service-mix similarityView profile →

Eric I-Hun Jeng, M.D.

Thoracic Surgery (CMS) · Gainesville, FL

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
15%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)
12%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.