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Compare the published Medicare service mix of Christianne Wa, MD with clinicians in the same registry specialty: Ophthalmology (CMS).

VALLEJO, CA · 25 milesEdit location
Within 25 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 18 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Elizabeth Delores Marlow Lehrburger, M.D.

Ophthalmology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
94%Service-mix similarity~18.3 milesView profile →

Tushar Ranchod, MD

Ophthalmology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
94%Service-mix similarity~18.3 milesView profile →

Caesar Kyle Luo, M.D.

Ophthalmology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
92%Service-mix similarity~18.3 milesView profile →

Roger A Goldberg, MD

Ophthalmology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
92%Service-mix similarity~18.3 milesView profile →

Tuow Daniel Ting, M.D.,PH.D.

Ophthalmology (CMS) · Oakland, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
91%Service-mix similarity~19.3 milesView profile →

Subhransu Kumar Ray, M.D., PH.D.

Ophthalmology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
89%Service-mix similarity~18.3 milesView profile →

Jasmine R Elison, M.D.

Ophthalmology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
86%Service-mix similarity~24.1 milesView profile →

Stewart Allan Daniels, M.D.

Specialty details in registry · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
82%Service-mix similarity~18.3 milesView profile →

Steven A. Harrison, M.D.

Ophthalmology (CMS) · Walnut Creek, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Established patient complete exam of visual system (92014)
81%Service-mix similarity~18.0 milesView profile →

Judy Ju-Yi Chen, M.D.

Ophthalmology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Established patient complete exam of visual system (92014)
77%Service-mix similarity~24.1 milesView profile →

Malini Veerappan Pasricha, MD

Ophthalmology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Established patient complete exam of visual system (92014)
76%Service-mix similarity~24.1 milesView profile →

J Michael Jumper, M.D.

Ophthalmology (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Imaging of retina (92134)
  • Injection of drug into eye (67028)
  • Established patient complete exam of visual system (92014)
75%Service-mix similarity~24.1 milesView 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 approximate distance 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.