A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of John Zhong Xie, M.D., PH.D. 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
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
81%Service-mix similarityView profile →

Eric Shieh

Ophthalmology · San Jose, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
  • Imaging of optic nerve (92133)
80%Service-mix similarityView profile →

Claudio Salvador Contreras, M.D.

Ophthalmology · San Jose, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
80%Service-mix similarityView profile →

John Sullivan, M.D.

Ophthalmology · San Jose, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
78%Service-mix similarityView profile →

George S Yang, M.D.

Ophthalmology · San Jose, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
78%Service-mix similarityView profile →

Raghunand Sastry, MD

Ophthalmology · San Jose, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
76%Service-mix similarityView profile →

Ngoc Nguyen, M.D.

Ophthalmology · San Jose, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
75%Service-mix similarityView profile →

Priti Dehkharghani, M.D.

Ophthalmology · San Jose, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
74%Service-mix similarityView profile →

Ho Sun Choi, M.D.

Ophthalmology · San Jose, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
74%Service-mix similarityView profile →

Jeanie Paik, M.D.

Ophthalmology · San Jose, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
73%Service-mix similarityView profile →

Catherine Bichha Pham, MD

Ophthalmology · San Jose, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
73%Service-mix similarityView profile →

Edward Joseph Saub, M.D.

Ophthalmology · San Jose, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Established patient complete exam of visual system (92014)
  • Imaging of retina (92134)
71%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.