Katherine Oppedahl Whitfield, MD
Ophthalmology · Chapel Hill, NC
Shared published services1 shared services · view billing descriptions
68%Service-mix similarity~60.4 milesView profile →
Similar work.
More providers to explore.
Compare the published Medicare service mix of Michael J Bartiss, MD OD with clinicians in the same registry specialty: Ophthalmology.
ABERDEEN, NC · 100 milesEdit location
Within 100 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 · 351 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.
Michelle Go, M.D.
Ophthalmology · Durham, NC
Shared published services1 shared services · view billing descriptions
67%Service-mix similarity~68.2 milesView profile →
Sara Fransen Grace, M.D.
Ophthalmology · Durham, NC
Shared published services1 shared services · view billing descriptions
66%Service-mix similarity~70.9 milesView profile →
Benjamin Charles Kramer, M.D.
Ophthalmology · Charlotte, NC
Shared published services1 shared services · view billing descriptions
65%Service-mix similarity~76.2 milesView profile →
Stephen Anthony Daugherty, MD
Ophthalmology · Charlotte, NC
Shared published services1 shared services · view billing descriptions
65%Service-mix similarity~76.2 milesView profile →
Taressa Gillig Haney, M.D.
Ophthalmology · Belmont, NC
Shared published services1 shared services · view billing descriptions
65%Service-mix similarity~90.7 milesView profile →
Sasapin Grace Prakalapakorn, MD, MPH
Ophthalmology · Durham, NC
Shared published services1 shared services · view billing descriptions
63%Service-mix similarity~72.2 milesView profile →
Sharon Freedman, M.D.
Ophthalmology · Durham, NC
Shared published services1 shared services · view billing descriptions
61%Service-mix similarity~72.2 milesView profile →
Anya Ann Trumler-Sebring, M.D.
Ophthalmology · Charlotte, NC
Shared published services1 shared services · view billing descriptions
61%Service-mix similarity~79.8 milesView profile →
Erin O'malley Schotthoefer, MD
Ophthalmology · Huntersville, NC
Shared published services1 shared services · view billing descriptions
59%Service-mix similarity~82.7 milesView profile →
Laura Enyedi, M.D.
Ophthalmology · Durham, NC
Shared published services1 shared services · view billing descriptions
57%Service-mix similarity~72.2 milesView profile →
Elliot Capers Mckee, M.D.
Ophthalmology · Belmont, NC
Shared published services1 shared services · view billing descriptions
50%Service-mix similarity~90.7 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.