A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Grant Lee, M.D. with clinicians in the same registry specialty: Ophthalmology.

LOS ANGELES, CA · Exact areaEdit location

2024 published service data · 168 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Michael Alexan Kapamajian, M.D.

Ophthalmology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
93%Service-mix similarityView profile →

Jeffrey Merrick Sage, D.O.

Ophthalmology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
86%Service-mix similarityView profile →

Victoria Li-Ting Tseng, MD

Ophthalmology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
85%Service-mix similarityView profile →

Stephan Yuan-Yee Chiu, M.D.

Ophthalmology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
83%Service-mix similarityView profile →

Jaffer Muhannad Kattan, M.D.

Ophthalmology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
83%Service-mix similarityView profile →

Michelle Sato, M.D.

Ophthalmology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
83%Service-mix similarityView profile →

Kristin Elizabeth Nesburn, MD

Ophthalmology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
83%Service-mix similarityView profile →

Barak Maguen, MD

Ophthalmology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
82%Service-mix similarityView profile →

Jo Ann Andrea Giaconi, MD

Ophthalmology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
82%Service-mix similarityView profile →

Jonathan Isaac Macy, MD

Ophthalmology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
81%Service-mix similarityView profile →

Erika Lauren Doss, MD

Ophthalmology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
81%Service-mix similarityView profile →

Ezra Maguen, MD

Ophthalmology · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Photography of the retina (92250)
  • Established patient complete exam of visual system (92014)
81%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.