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Similar work.
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Compare the published Medicare service mix of Irena Tsui, MD 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.

Hamid Hosseini

Ophthalmology · Los Angeles, CA

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)
96%Service-mix similarityView profile →

Pradeep Satya Prasad, M.D.

Ophthalmology · Los Angeles, CA

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)
94%Service-mix similarityView profile →

Mark S Humayun, M.D.

Ophthalmology · Los Angeles, CA

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)
91%Service-mix similarityView profile →

David Lozano Giral, MD, MSC

Ophthalmology · Los Angeles, CA

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)
89%Service-mix similarityView profile →

Andrew Akbar Moshfeghi, MD

Ophthalmology · Los Angeles, CA

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)
82%Service-mix similarityView profile →

David Sarraf, MD

Ophthalmology · Los Angeles, CA

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 →

Yong Han, M.D.

Ophthalmology · Los Angeles, CA

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 →

Louis K Chang, M.D., PH.D.

Ophthalmology · Los Angeles, CA

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 →

Wei Gui, M.D.

Ophthalmology · Los Angeles, CA

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)
77%Service-mix similarityView profile →

Rachel Ann Feit-Leichman, MD

Ophthalmology · Los Angeles, CA

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 →

Hossein Ameri, MD

Ophthalmology · Los Angeles, CA

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)
74%Service-mix similarityView profile →

Colin A Mccannel, M.D.

Ophthalmology · Los Angeles, CA

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)
73%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.