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Compare the published Medicare service mix of Andrea Zatlin Stark, M.D. with clinicians in the same registry specialty: Anesthesiology.

DANVILLE, CA · 10 milesEdit location
Within 10 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 · 57 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

David Curtis Fitzgerald, MD

Anesthesiology · Walnut Creek, CA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
100%Service-mix similarity~8.1 milesView profile →

John Gainey, MD

Anesthesiology · Walnut Creek, CA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
100%Service-mix similarity~8.1 milesView profile →

Young Sin Lin, M.D.

Anesthesiology · Walnut Creek, CA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
100%Service-mix similarity~8.4 milesView profile →

Stephen Hsien-Chih Lo, MD

Anesthesiology · Pleasanton, CA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
100%Service-mix similarity~9.7 milesView profile →

Christopher L Reeves, MD

Anesthesiology · Walnut Creek, CA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
100%Service-mix similarity~8.1 milesView profile →

Oscar Fernandez, MD

Anesthesiology · Walnut Creek, CA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
68%Service-mix similarity~8.1 milesView profile →

Timothy D. Ungerer, D.O.

Anesthesiology · San Ramon, CA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
58%Service-mix similarity~4.7 milesView profile →

Michael Adams Maloney

Anesthesiology · Walnut Creek, CA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
57%Service-mix similarity~8.1 milesView profile →

Robert Glenn Laverne, MD

Anesthesiology · Walnut Creek, CA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
53%Service-mix similarity~8.1 milesView profile →

Haywon Lieh, MD

Anesthesiology · Walnut Creek, CA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for lens surgery (00142)
52%Service-mix similarity~8.1 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.