Surendar Dwarakanathan, MD
Ophthalmology · Schererville, IN
Shared published services3 shared services · view billing descriptions
74%Service-mix similarity~7.2 milesView profile →
Similar work.
More providers to explore.
Compare the published Medicare service mix of Douglas P Williams Md, M.D. with clinicians in the same registry specialty: Ophthalmology.
CROWN POINT, IN · 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 · 12 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.
David G. Gross, D.O.
Ophthalmology · Merrillville, IN
Shared published services3 shared services · view billing descriptions
73%Service-mix similarity~5.2 milesView profile →
Jeffrey Lynn Nelson, MD
Ophthalmology · Merrillville, IN
Shared published services3 shared services · view billing descriptions
73%Service-mix similarity~5.2 milesView profile →
Leo K Wang, MD
Ophthalmology · Schererville, IN
Shared published services3 shared services · view billing descriptions
67%Service-mix similarity~7.2 milesView profile →
Aurabind Balagani, DO
Ophthalmology · Dyer, IN
Shared published services3 shared services · view billing descriptions
62%Service-mix similarity~9.2 milesView profile →
Barry J Kaufman, D.O.
Ophthalmology · Dyer, IN
Shared published services3 shared services · view billing descriptions
44%Service-mix similarity~9.2 milesView profile →
Sahana Vyas, M.D.
Ophthalmology · Merrillville, IN
Shared published services3 shared services · view billing descriptions
33%Service-mix similarity~5.2 milesView profile →
Joel Eric Chasan, M.D.
Ophthalmology · Merrillville, IN
Shared published services3 shared services · view billing descriptions
33%Service-mix similarity~5.2 milesView profile →
James Arthur Eadie, M.D.
Ophthalmology · Merrillville, IN
Shared published services3 shared services · view billing descriptions
32%Service-mix similarity~5.2 milesView profile →
Christopher David Pelzek, M.D.
Ophthalmology · Merrillville, IN
Shared published services3 shared services · view billing descriptions
32%Service-mix similarity~5.2 milesView profile →
Karen Sue Briggs, D.O.
Ophthalmology · Dyer, IN
Shared published services3 shared services · view billing descriptions
30%Service-mix similarity~9.2 milesView profile →
Brian Paul Weismann, MD
Ophthalmology · St John, IN
Shared published services2 shared services · view billing descriptions
26%Service-mix similarity~6.3 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.