Eric Chi-Jun Jan, OD
Optometrist · Rockville, MD
Shared published services1 shared services · view billing descriptions
100%Service-mix similarity~1.7 milesView profile →
Similar work.
More providers to explore.
Compare the published Medicare service mix of Jennifer Karmiol, OD with clinicians in the same registry specialty: Optometrist.
POTOMAC, MD · 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 · 53 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.
Xue-Guang Zhang, OD
Optometrist · Rockville, MD
Shared published services1 shared services · view billing descriptions
100%Service-mix similarity~5.2 milesView profile →
Jeannie Danling Chow, O.D.
Optometrist · Gaithersburg, MD
Shared published services1 shared services · view billing descriptions
69%Service-mix similarity~3.1 milesView profile →
Pei Wang, OD
Optometrist · Rockville, MD
Shared published services1 shared services · view billing descriptions
68%Service-mix similarity~5.2 milesView profile →
Julie H Lieuw, O.D.
Optometrist · Bethesda, MD
Shared published services1 shared services · view billing descriptions
67%Service-mix similarity~7.5 milesView profile →
Samala M Khan, O.D.
Optometrist · Gaithersburg, MD
Shared published services1 shared services · view billing descriptions
65%Service-mix similarity~5.7 milesView profile →
Katherine Yueh-Mei Ly, O.D.
Optometrist · Silver Spring, MD
Shared published services1 shared services · view billing descriptions
61%Service-mix similarity~9.1 milesView profile →
Alexandra Clarisa Bennett, O.D
Optometrist · Bethesda, MD
Shared published services1 shared services · view billing descriptions
49%Service-mix similarity~3.7 milesView profile →
Matthew Brodak, O.D.
Optometrist · Gaithersburg, MD
Shared published services1 shared services · view billing descriptions
46%Service-mix similarity~3.5 milesView profile →
Christopher Son, O.D. PC
Optometrist · Mclean, VA
Shared published services1 shared services · view billing descriptions
42%Service-mix similarity~9.7 milesView profile →
Anahita Abazari
Optometrist · Bethesda, MD
Shared published services1 shared services · view billing descriptions
38%Service-mix similarity~8.2 milesView profile →
Stephen C. Lobaugh, O.D.
Optometrist · Bethesda, MD
Shared published services1 shared services · view billing descriptions
38%Service-mix similarity~8.2 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.