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Compare the published Medicare service mix of Tzvetan Borissov Kozarski, MD with clinicians in the same registry specialty: Pathology (CMS).

NY · Exact areaEdit location

2024 published service data · 13 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

David Jonathan Pisapia, M.D.

Pathology (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Special stained specimen slides to examine tissue, initial procedure (88342)
89%Service-mix similarityView profile →

Gabrielle A. Yeaney, M.D.

Pathology (CMS) · Rochester, NY

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Special stained specimen slides to examine tissue, initial procedure (88342)
84%Service-mix similarityView profile →

Jianyi Li

Pathology (CMS) · Manhasset, NY

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Special stained specimen slides to examine tissue, initial procedure (88342)
80%Service-mix similarityView profile →

Benjamin L Liechty, MD

Pathology (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Special stained specimen slides to examine tissue, initial procedure (88342)
  • Pathology examination of tissue using a microscope, moderately high complexity (88307)
79%Service-mix similarityView profile →

George Michael Kleinman, MD

Pathology (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Special stained specimen slides to examine tissue, initial procedure (88342)
78%Service-mix similarityView profile →

Roberta Seidman, M.D.

Pathology (CMS) · Stony Brook, NY

Shared published services
3 shared services · view billing descriptions
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Special stained specimen slides to examine tissue, initial procedure (88342)
  • Pathology examination of tissue using a microscope, moderately high complexity (88307)
77%Service-mix similarityView profile →

Timothy Richardson, D.O.

Dermatology · Pathology (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Pathology examination of tissue using a microscope, intermediate complexity (88305)
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Special stained specimen slides to examine tissue, initial procedure (88342)
75%Service-mix similarityView profile →

Michael Lawrence Miller, MD, PHD

Pathology (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Special stained specimen slides to examine tissue, initial procedure (88342)
  • Pathology examination of tissue using a microscope, moderately high complexity (88307)
65%Service-mix similarityView profile →

Gunnar Hargus, M.D., PH.D.

Pathology (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Special stained specimen slides to examine tissue, initial procedure (88342)
  • Pathology examination of tissue using a microscope, moderately high complexity (88307)
64%Service-mix similarityView profile →

Osama Ahmad Odeh Al Dalahmah, M.D.

Pathology (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Special stained specimen slides to examine tissue, initial procedure (88342)
  • Pathology examination of tissue using a microscope, moderately high complexity (88307)
64%Service-mix similarityView profile →

David Zagzag, M.D.

Pathology (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Special stained specimen slides to examine tissue, each additional procedure (88341)
  • Special stained specimen slides to examine tissue, initial procedure (88342)
  • Pathology examination of tissue using a microscope, moderately high complexity (88307)
61%Service-mix similarityView profile →

Nadejda Tsankova, M.D., PH.D.

Pathology (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Special stained specimen slides to examine tissue, initial procedure (88342)
  • Pathology examination of tissue using a microscope, moderately low complexity (88304)
  • Pathology examination of tissue using a microscope, limited examination (88300)
49%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.