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Compare the published Medicare service mix of Grace Lynn Su, MD with clinicians in the same registry specialty: Ophthalmology.

SAN JOSE, CA · Exact areaEdit location

2024 published service data · 38 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

M Regina De Luna

Ophthalmology · San Jose, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
24%Service-mix similarityView profile →

Jeehee Kim, M.D.

Ophthalmology · San Jose, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
24%Service-mix similarityView profile →

Yohko Murakami, M.D.

Ophthalmology · San Jose, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
23%Service-mix similarityView profile →

Eric Shieh

Ophthalmology · San Jose, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
23%Service-mix similarityView profile →

Ray Gariano, MD

Ophthalmology · San Jose, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
22%Service-mix similarityView profile →

Marina Chechelnitsky, M.D.

Ophthalmology · San Jose, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
20%Service-mix similarityView profile →

Raghunand Sastry, MD

Ophthalmology · San Jose, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
19%Service-mix similarityView profile →

Maria S Govorkova, M.D.

Ophthalmology · San Jose, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
19%Service-mix similarityView profile →

Catherine Bichha Pham, MD

Ophthalmology · San Jose, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
19%Service-mix similarityView profile →

John Zhong Xie, M.D., PH.D.

Ophthalmology · San Jose, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
19%Service-mix similarityView profile →

John Sullivan, M.D.

Ophthalmology · San Jose, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
18%Service-mix similarityView profile →

Tamer M Hadi, M.D.

Ophthalmology · San Jose, CA

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
18%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.