Oscar Lillo, O.D.
Optometrist · Palm Springs, CA
Shared published services3 shared services · view billing descriptions
62%Service-mix similarity~5.1 milesView profile →
Similar work.
More providers to explore.
Compare the published Medicare service mix of Ramsey Katan, OD with clinicians in the same registry specialty: Optometrist.
CATHEDRAL CITY, 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 · 20 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.
Richard Vandyke Packard, O.D.
Optometrist · Indian Wells, CA
Shared published services3 shared services · view billing descriptions
61%Service-mix similarity~9.1 milesView profile →
Gregory E Evans, O.D.
Optometrist · Rancho Mirage, CA
Shared published services3 shared services · view billing descriptions
57%Service-mix similarity~3.3 milesView profile →
Paul Yoh, OD
Optometrist · Rancho Mirage, CA
Shared published services3 shared services · view billing descriptions
55%Service-mix similarity~3.3 milesView profile →
Serena Denise Ho, O.D.
Optometrist · Palm Desert, CA
Shared published services2 shared services · view billing descriptions
54%Service-mix similarity~7.1 milesView profile →
Ryan Anderson, O.D.
Optometrist · Palm Springs, CA
Shared published services3 shared services · view billing descriptions
51%Service-mix similarity~5.1 milesView profile →
Jon Emberland, OD
Optometrist · Rancho Mirage, CA
Shared published services3 shared services · view billing descriptions
49%Service-mix similarity~3.3 milesView profile →
Audrey Chen, OD
Optometrist · Palm Desert, CA
Shared published services3 shared services · view billing descriptions
48%Service-mix similarity~7.5 milesView profile →
Stephen Robert Keller, O.D.
Optometrist · Palm Desert, CA
Shared published services3 shared services · view billing descriptions
46%Service-mix similarity~7.5 milesView profile →
Khalil Semaan, O.D.
Optometrist · Palm Springs, CA
Shared published services3 shared services · view billing descriptions
35%Service-mix similarity~5.1 milesView profile →
Karine Shaghoyan, OD
Optometrist · Rancho Mirage, CA
Shared published services1 shared services · view billing descriptions
29%Service-mix similarity~3.3 milesView profile →
Winston H Alwes, OD
Optometrist · Rancho Mirage, CA
Shared published services2 shared services · view billing descriptions
29%Service-mix similarity~3.3 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.