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Compare the published Medicare service mix of John R Hagopian, M.D. with clinicians in the same registry specialty: Anesthesiology.

PAINESVILLE, OH · 25 milesEdit location
Within 25 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 238 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jiapeng Huang, M.D.

Anesthesiology · Cleveland, OH

Shared published services
1 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
74%Service-mix similarity~24.5 milesView profile →

Carlos Eduardo Trombetta, M. D.

Anesthesiology · Cleveland, OH

Shared published services
1 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
74%Service-mix similarity~24.5 milesView profile →

Brett Gentle, DO

Anesthesiology · Cleveland, OH

Shared published services
1 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
71%Service-mix similarity~24.5 milesView profile →

Miguel A Morillo, MD

Anesthesiology · Cleveland, OH

Shared published services
1 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
71%Service-mix similarity~24.5 milesView profile →

Joe Saba Salloum, MD

Anesthesiology · Cleveland, OH

Shared published services
1 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
67%Service-mix similarity~24.5 milesView profile →

Grzegorz A Pitas, MD

Anesthesiology · Cleveland, OH

Shared published services
1 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
65%Service-mix similarity~24.5 milesView profile →

Brian C Fitzsimons, MD

Anesthesiology · Cleveland, OH

Shared published services
1 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
64%Service-mix similarity~24.5 milesView profile →

Lisa Huang, MD

Anesthesiology · Cleveland, OH

Shared published services
1 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
63%Service-mix similarity~24.5 milesView profile →

Marcelo Gama De Abreu, MD

Anesthesiology · Cleveland, OH

Shared published services
1 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
62%Service-mix similarity~24.5 milesView profile →

Sara Kane Pieren, MD

Anesthesiology · Cleveland, OH

Shared published services
1 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
61%Service-mix similarity~24.5 milesView profile →

Stacy L Ritzman, MD

Anesthesiology · Cleveland, OH

Shared published services
1 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
56%Service-mix similarity~24.5 milesView profile →

Daniel Jacob Wyler, M.D.

Anesthesiology · Cleveland, OH

Shared published services
1 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
56%Service-mix similarity~24.5 milesView 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 approximate distance 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.