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Compare the published Medicare service mix of Ervin Patrick Wong, M.D. with clinicians in the same registry specialty: Ophthalmology.

SAN FRANCISCO, CA · Exact areaEdit location

2024 published service data · 79 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Madeline Yung

Ophthalmology · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Imaging of retina (92134)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
74%Service-mix similarityView profile →

Danny Y Lin, MD

Ophthalmology · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Photography of the retina (92250)
  • Imaging of retina (92134)
67%Service-mix similarityView profile →

Negin Agange, MD

Ophthalmology · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Imaging of retina (92134)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
66%Service-mix similarityView profile →

Neeti Bharat Parikh, MD

Ophthalmology · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Imaging of retina (92134)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
65%Service-mix similarityView profile →

John H Zeiter, MD

Ophthalmology · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Imaging of retina (92134)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
64%Service-mix similarityView profile →

Maya Si-Huey Ling, MD

Ophthalmology · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Imaging of retina (92134)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
64%Service-mix similarityView profile →

Saraswathy Ramanathan, M.D.

Ophthalmology · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Imaging of retina (92134)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
64%Service-mix similarityView profile →

Luciano Custo Greig

Ophthalmology · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Imaging of retina (92134)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
61%Service-mix similarityView profile →

Nisha Acharya, M.D.

Ophthalmology · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Imaging of retina (92134)
61%Service-mix similarityView profile →

Jessica Gowramma Shantha, M.D.

Ophthalmology · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Imaging of retina (92134)
61%Service-mix similarityView profile →

Murtaza Saifee, MD

Ophthalmology · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Photography of the retina (92250)
  • Imaging of retina (92134)
60%Service-mix similarityView profile →

Matthew Denny, MD

Ophthalmology · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Photography of the retina (92250)
  • Imaging of retina (92134)
58%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.