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Compare the published Medicare service mix of Kevin A Greer, MD with clinicians in the same registry specialty: Thoracic Surgery (CMS).

GREEN BAY, WI · Exact areaEdit location

2024 published service data · 6 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

James Patrick Bailey, MD

Thoracic Surgery (CMS) · Green Bay, WI

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Replacement of aortic valve through the skin and femoral artery (33361)
  • Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)
81%Service-mix similarityView profile →

John Forrest Seccombe, MD

Cardiac Surgery · General Surgery · Thoracic Surgery (CMS) · Green Bay, WI

Shared published services
3 shared services · view billing descriptions
  • Replacement of aortic valve through the skin and femoral artery (33361)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Coronary artery bypass using artery graft, 1 graft (33533)
55%Service-mix similarityView profile →

Alexander Roitstein, MD

Thoracic Surgery (CMS) · Green Bay, WI

Shared published services
3 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Coronary artery bypass using artery graft, 1 graft (33533)
  • Harvest of vein using an endoscope (33508)
55%Service-mix similarityView profile →

Paul M Shen, MD

Cardiac Surgery · Thoracic Surgery (CMS) · Green Bay, WI

Shared published services
2 shared services · view billing descriptions
  • Replacement of aortic valve through the skin and femoral artery (33361)
  • Coronary artery bypass using artery graft, 1 graft (33533)
50%Service-mix similarityView profile →

Fuad Emile Zankoul, MD

Cardiac Surgery · Thoracic Surgery (CMS) · Green Bay, WI

Shared published services
2 shared services · view billing descriptions
  • Replacement of aortic valve through the skin and femoral artery (33361)
  • Coronary artery bypass using artery graft, 1 graft (33533)
37%Service-mix similarityView profile →

Thomas James Percival, MD

Cardiac Surgery · General Surgery · Thoracic Surgery (CMS) · Green Bay, WI

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)
22%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.