Gregory Edward Giles, O.D.
Optometrist · La Mesa, CA
Shared published services2 shared services · view billing descriptions
83%Service-mix similarity~3.7 milesView profile →
Similar work.
More providers to explore.
Compare the published Medicare service mix of John C. Fleming, O.D. with clinicians in the same registry specialty: Optometrist.
SPRING VALLEY, 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 · 54 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.
Lizeth Gonzalez, OD
Optometrist · San Diego, CA
Shared published services2 shared services · view billing descriptions
76%Service-mix similarity~6.2 milesView profile →
Robert Mauricio Gonzalez, O.D.
Optometrist · San Diego Ca, CA
Shared published services2 shared services · view billing descriptions
59%Service-mix similarity~5.1 milesView profile →
Andreea Nastasoiu, OD
Optometrist · National City, CA
Shared published services1 shared services · view billing descriptions
55%Service-mix similarity~7.3 milesView profile →
Chantelle Verduzco Davis, OD
Optometrist · San Diego, CA
Shared published services1 shared services · view billing descriptions
54%Service-mix similarity~8.1 milesView profile →
David Mark Newman, O.D.
Optometrist · La Mesa, CA
Shared published services1 shared services · view billing descriptions
52%Service-mix similarity~3.7 milesView profile →
Rex Arthur Werner, O.D.
Optometrist · El Cajon, CA
Shared published services2 shared services · view billing descriptions
52%Service-mix similarity~4.9 milesView profile →
Cindy Quyen Than, O.D.
Optometrist · San Diego, CA
Shared published services1 shared services · view billing descriptions
50%Service-mix similarity~9.9 milesView profile →
Jocelyn Ou, OD
Optometrist · San Diego, CA
Shared published services1 shared services · view billing descriptions
47%Service-mix similarity~9.7 milesView profile →
David Mark Kasanoff, O.D.
Optometrist · La Mesa, CA
Shared published services1 shared services · view billing descriptions
46%Service-mix similarity~3.7 milesView profile →
Carl Allen Boeck, O.D.
Optometrist · Santee, CA
Shared published services1 shared services · view billing descriptions
45%Service-mix similarity~7.7 milesView profile →
Sherry Denise Deaner-Harrington, O.D.
Optometrist · Chula Vista, CA
Shared published services1 shared services · view billing descriptions
45%Service-mix similarity~8.3 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.