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Compare the published Medicare service mix of Amir O. Elhassan, M.D. with clinicians in the same registry specialty: Anesthesiology.

COLUMBUS, OH · Exact areaEdit location

2024 published service data · 241 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

David Michael Wilsak, MD

Anesthesiology · Columbus, OH

Shared published services
2 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
62%Service-mix similarityView profile →

John P Rossi, MD

Anesthesiology · Columbus, OH

Shared published services
2 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
62%Service-mix similarityView profile →

Jared Evan Bobulski, MD

Anesthesiology · Columbus, OH

Shared published services
2 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
61%Service-mix similarityView profile →

Barrett Jason Kumar, DO

Anesthesiology · Columbus, OH

Shared published services
2 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
61%Service-mix similarityView profile →

Tsung-Pai James Huang, MD

Anesthesiology · Columbus, OH

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for x-ray on artery of brain, heart, or chest (01926)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
60%Service-mix similarityView profile →

Joseph Abood, MD

Anesthesiology · Columbus, OH

Shared published services
2 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
60%Service-mix similarityView profile →

Katja R Turner, MD

Anesthesiology · Columbus, OH

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for procedure on heart and large blood vessels (00560)
  • Ultrasound of heart with probe in esophagus, with report (93312)
56%Service-mix similarityView profile →

Thomas E. Graul, D.O.

Anesthesiology · Columbus, OH

Shared published services
2 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for x-ray on artery of brain, heart, or chest (01926)
56%Service-mix similarityView profile →

Michael Ingerski, M.D.

Anesthesiology · Columbus, OH

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for x-ray on artery of brain, heart, or chest (01926)
  • Anesthesia for procedure on heart and large blood vessels (00560)
56%Service-mix similarityView profile →

William J. Perez, MD

Anesthesiology · Columbus, OH

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for x-ray on artery of brain, heart, or chest (01926)
  • Ultrasound of heart with probe in esophagus, with report (93312)
55%Service-mix similarityView profile →

Joseph T. Perrault, MD

Anesthesiology · Columbus, OH

Shared published services
2 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
52%Service-mix similarityView profile →

Daniel C Hiestand, M.D.

Anesthesiology · Columbus, OH

Shared published services
2 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
52%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.