Steven N Zudiker, PSY.D.
Specialty details in registry · Santee, CA
Shared published services3 shared services · view billing descriptions
94%Service-mix similarity~3.9 milesView profile →
Similar work.
More providers to explore.
Compare the published Medicare service mix of Cassandra Mary Kauffman, PSYD with clinicians in the same registry specialty: Clinical Psychologist (CMS).
LAKESIDE, 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 · 12 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.
Katherine Rodriguez, PSY.D.
Clinical Psychologist (CMS) · El Cajon, CA
Shared published services3 shared services · view billing descriptions
89%Service-mix similarity~2.7 milesView profile →
Margitsa Valaskantjis, PH.D.
Clinical Psychologist (CMS) · El Cajon, CA
Shared published services3 shared services · view billing descriptions
87%Service-mix similarity~5.1 milesView profile →
Callan Elizabeth Powers-Magro, PSY.D.
Clinical Psychologist (CMS) · San Diego, CA
Shared published services3 shared services · view billing descriptions
64%Service-mix similarity~9.7 milesView profile →
David E. Duffy, PHD
Clinical Psychologist (CMS) · La Mesa, CA
Shared published services3 shared services · view billing descriptions
61%Service-mix similarity~7.6 milesView profile →
Hugh D. Pates, PHD
Clinical Psychologist (CMS) · La Mesa, CA
Shared published services2 shared services · view billing descriptions
54%Service-mix similarity~7.6 milesView profile →
Marie Bridgeford
Specialty details in registry · Alpine, CA
Shared published services3 shared services · view billing descriptions
54%Service-mix similarity~9.8 milesView profile →
Thomas Ward-Mckinlay, PH.D.
Clinical Psychologist (CMS) · Alpine, CA
Shared published services2 shared services · view billing descriptions
29%Service-mix similarity~9.8 milesView profile →
Margaret R Tess, PH.D.
Clinical Psychologist (CMS) · El Cajon, CA
Shared published services1 shared services · view billing descriptions
26%Service-mix similarity~5.1 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.