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Compare the published Medicare service mix of John F Kessler, MD with clinicians in the same registry specialty: Hematology/Oncology (CMS).

OH · Exact areaEdit location

2024 published service data · 341 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Paula F Weisenberger, MD

Specialty details in registry · Fairfield, OH

Shared published services
3 shared services · view billing descriptions
  • Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)
  • Blood test, comprehensive group of blood chemicals (80053)
  • Injection of drug or substance under skin or into muscle (96372)
55%Service-mix similarityView profile →

David M Waterhouse, MD

Hematology/Oncology · Internal Medicine (CMS) · Cincinnati, OH

Shared published services
3 shared services · view billing descriptions
  • Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)
  • Blood test, comprehensive group of blood chemicals (80053)
  • Injection of drug or substance under skin or into muscle (96372)
45%Service-mix similarityView profile →

Weiping Zang, M.D

Hematology/Oncology (CMS) · Cincinnati, OH

Shared published services
3 shared services · view billing descriptions
  • Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)
  • Blood test, comprehensive group of blood chemicals (80053)
  • Injection of drug or substance under skin or into muscle (96372)
44%Service-mix similarityView profile →

John James Graham, M.D.

Hematology/Oncology (CMS) · Canfield, OH

Shared published services
3 shared services · view billing descriptions
  • Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)
  • Blood test, comprehensive group of blood chemicals (80053)
  • Immunologic analysis for detection of tumor antigen, quantitative; ca 15-3 (86300)
43%Service-mix similarityView profile →

Robert L Cody, M.D.

Hematology/Oncology · Internal Medicine (CMS) · Cincinnati, OH

Shared published services
3 shared services · view billing descriptions
  • Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)
  • Blood test, comprehensive group of blood chemicals (80053)
  • Injection of drug or substance under skin or into muscle (96372)
42%Service-mix similarityView profile →

Julie Specht, M.D.

Hematology/Oncology (CMS) · Cincinnati, OH

Shared published services
3 shared services · view billing descriptions
  • Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)
  • Blood test, comprehensive group of blood chemicals (80053)
  • Injection of drug or substance under skin or into muscle (96372)
41%Service-mix similarityView profile →

Antoine Emile Chahine, MD

Hematology · Medical Oncology (CMS) · Canfield, OH

Shared published services
3 shared services · view billing descriptions
  • Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)
  • Blood test, comprehensive group of blood chemicals (80053)
  • Immunologic analysis for detection of tumor antigen, quantitative; ca 15-3 (86300)
41%Service-mix similarityView profile →

Hasan Rehman

Hematology/Oncology (CMS) · Wilmington, OH

Shared published services
3 shared services · view billing descriptions
  • Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)
  • Blood test, comprehensive group of blood chemicals (80053)
  • Injection of drug or substance under skin or into muscle (96372)
40%Service-mix similarityView profile →

Brian A Mannion, M.D.

Hematology/Oncology (CMS) · Cincinnati, OH

Shared published services
3 shared services · view billing descriptions
  • Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)
  • Blood test, comprehensive group of blood chemicals (80053)
  • Injection of drug or substance under skin or into muscle (96372)
40%Service-mix similarityView profile →

Jayadev Reddy Mettu, M.B.B.S

Hematology/Oncology · Internal Medicine (CMS) · Fairfield, OH

Shared published services
3 shared services · view billing descriptions
  • Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)
  • Blood test, comprehensive group of blood chemicals (80053)
  • Injection of drug or substance under skin or into muscle (96372)
40%Service-mix similarityView profile →

Slobodan M Stanisic, M.D.

Hematology/Oncology (CMS) · Cincinnati, OH

Shared published services
3 shared services · view billing descriptions
  • Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)
  • Blood test, comprehensive group of blood chemicals (80053)
  • Injection of drug or substance under skin or into muscle (96372)
40%Service-mix similarityView profile →

Roma Srivastava, M.D.

Hematology/Oncology (CMS) · Blue Ash, OH

Shared published services
3 shared services · view billing descriptions
  • Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)
  • Blood test, comprehensive group of blood chemicals (80053)
  • Injection of drug or substance under skin or into muscle (96372)
39%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.