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Similar work.
More providers to explore.

Compare the published Medicare service mix of Michael Colin Ryan, M.D. with clinicians in the same registry specialty: Ophthalmology (CMS).

NY · Exact areaEdit location

2024 published service data · 92 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Harry M Engel, MD

Ophthalmology (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Established patient complete exam of visual system (92014)
  • Injection of drug into eye (67028)
85%Service-mix similarityView profile →

Gregory Eli Stein, M.D.

Ophthalmology (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Established patient complete exam of visual system (92014)
  • Injection of drug into eye (67028)
81%Service-mix similarityView profile →

Zimei Zhou, MD PHD

Ophthalmology (CMS) · Flushing, NY

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Established patient complete exam of visual system (92014)
  • Injection of drug into eye (67028)
80%Service-mix similarityView profile →

Howard Jay Kaplan, MD

Ophthalmology (CMS) · Poughkeepsie, NY

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Established patient complete exam of visual system (92014)
  • Injection of drug into eye (67028)
79%Service-mix similarityView profile →

Rodney P Coe, MD, MS

Ophthalmology (CMS) · Bayside, NY

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Established patient complete exam of visual system (92014)
  • Injection of drug into eye (67028)
79%Service-mix similarityView profile →

Paul Neil Guerriero, M.D.

Ophthalmology (CMS) · Orangeburg, NY

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Established patient complete exam of visual system (92014)
  • Injection of drug into eye (67028)
78%Service-mix similarityView profile →

Philip Isaac Niles, MD

Ophthalmology (CMS) · Williamsville, NY

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Established patient complete exam of visual system (92014)
  • Injection of drug into eye (67028)
78%Service-mix similarityView profile →

David E Sperber, MD

Ophthalmology (CMS) · Vestal, NY

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Established patient complete exam of visual system (92014)
  • Injection of drug into eye (67028)
78%Service-mix similarityView profile →

Alexander Pinhas, M.D.

Ophthalmology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Established patient problem focused exam of visual system (92012)
77%Service-mix similarityView profile →

Robert Gary Josephberg, MD

Ophthalmology (CMS) · Yonkers, NY

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Established patient complete exam of visual system (92014)
  • Injection of drug into eye (67028)
76%Service-mix similarityView profile →

Joseph J Tseng, M.D.

Ophthalmology (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Established patient complete exam of visual system (92014)
  • Injection of drug into eye (67028)
76%Service-mix similarityView profile →

Nancy Elizabeth Miller-Rivero, MD

Ophthalmology (CMS) · Poughkeepsie, NY

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Established patient complete exam of visual system (92014)
  • Injection of drug into eye (67028)
75%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.