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Compare the published Medicare service mix of John C Flanagan, M D with clinicians in the same registry specialty: Ophthalmology.

NEW YORK, NY · Exact areaEdit location

2024 published service data · 282 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Ronit Kahanowicz, M.D.

Ophthalmology · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Extended exam of the back part of the eye with optic nerve drawing (92202)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
67%Service-mix similarityView profile →

Bryan J Winn, M.D.

Ophthalmology · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
67%Service-mix similarityView profile →

Gautam Kamthan

Ophthalmology · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Extended exam of the back part of the eye with optic nerve drawing (92202)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
63%Service-mix similarityView profile →

Nancy Nai-En Tsai, MD

Ophthalmology · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Extended exam of the back part of the eye with optic nerve drawing (92202)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
61%Service-mix similarityView profile →

Robin Ginsburg, M.D.

Ophthalmology · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Extended exam of the back part of the eye with optic nerve drawing (92202)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
60%Service-mix similarityView profile →

Eugene Edward Weise, MD

Ophthalmology · New York, NY

Shared published services
2 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • New patient problem focused exam of visual system (92002)
59%Service-mix similarityView profile →

Amy Mehta

Ophthalmology · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Extended exam of the back part of the eye with optic nerve drawing (92202)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
58%Service-mix similarityView profile →

Bella Jewel Wolf, MD

Ophthalmology · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient problem focused exam of visual system (92002)
58%Service-mix similarityView profile →

Luis Silva Alvarez, M.D.

Ophthalmology · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Extended exam of the back part of the eye with optic nerve drawing (92202)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
56%Service-mix similarityView profile →

Raphael A Castillo, MD

Ophthalmology · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Extended exam of the back part of the eye with optic nerve drawing (92202)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
56%Service-mix similarityView profile →

Laurence T. Dodick Sperber, M.D.

Ophthalmology · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Extended exam of the back part of the eye with optic nerve drawing (92202)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
55%Service-mix similarityView profile →

Leslie Ellen Gordon, MD

Ophthalmology · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
55%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.