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

ORLANDO, FL · Exact areaEdit location

2024 published service data · 21 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Anthony J Rongione, M.D.

Thoracic Surgery (CMS) · Orlando, FL

Shared published services
3 shared services · view billing descriptions
  • Interpretation and report of ultrasound of heart (93314)
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Harvest of vein using an endoscope (33508)
69%Service-mix similarityView profile →

Jorge E Suarez-Cavelier, M.D.

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

Shared published services
3 shared services · view billing descriptions
  • Interpretation and report of ultrasound of heart (93314)
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Harvest of vein using an endoscope (33508)
64%Service-mix similarityView profile →

Michael N. Hanna, M.D.

Thoracic Surgery (CMS) · Orlando, FL

Shared published services
3 shared services · view billing descriptions
  • Interpretation and report of ultrasound of heart (93314)
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Harvest of vein using an endoscope (33508)
55%Service-mix similarityView profile →

George J. Palmer, M.D.

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

Shared published services
3 shared services · view billing descriptions
  • Interpretation and report of ultrasound of heart (93314)
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Harvest of vein using an endoscope (33508)
53%Service-mix similarityView profile →

Sandeep Gupta, M.D.

Cardiac Surgery · Thoracic Surgery (CMS) · Orlando, 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)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
49%Service-mix similarityView profile →

Kevin Donn Accola, M.D.

Specialty details in registry · Orlando, FL

Shared published services
3 shared services · view billing descriptions
  • Interpretation and report of ultrasound of heart (93314)
  • Replacement of aortic valve on heart-lung machine (33405)
  • Replacement of mitral valve on heart-lung machine (33430)
43%Service-mix similarityView profile →

Ioannis Loumiotis, M.D.

Thoracic Surgery (CMS) · Orlando, 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)
41%Service-mix similarityView profile →

Karen Leonia Walker, M.D.

Thoracic Surgery (CMS) · Orlando, 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)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
41%Service-mix similarityView profile →

Joseph Harrison Boyer, M.D.

Thoracic Surgery (CMS) · Orlando, 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)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
38%Service-mix similarityView profile →

Lawrence S Lee, M.D.

Cardiac Surgery · Thoracic Surgery (CMS) · Orlando, 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)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
38%Service-mix similarityView profile →

David J Spurlock, MD

Thoracic Surgery (CMS) · Orlando, FL

Shared published services
2 shared services · view billing descriptions
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Harvest of vein using an endoscope (33508)
32%Service-mix similarityView profile →

Ahmad Zeeshan, MD

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

Shared published services
2 shared services · view billing descriptions
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Harvest of vein using an endoscope (33508)
23%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.