Kalyanam Shivkumar, MD, PHD
Cardiovascular Disease · Los Angeles, CA
Shared published servicesCompare the published Medicare service mix of Barbara Ann Boylan, MD with clinicians in the same registry specialty: Cardiovascular Disease.
2024 published service data · 500 eligible profiles compared. This search reached its 500-profile comparison limit, using NPI order. Narrow the location for a more focused comparison. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.
Cardiovascular Disease · Los Angeles, CA
Shared published servicesCardiovascular Disease · Roseville, CA
Shared published servicesCardiovascular Disease · Stockton, CA
Shared published servicesCardiovascular Disease · Pleasanton, CA
Shared published servicesCardiovascular Disease · Roseville, CA
Shared published servicesCardiovascular Disease · Grass Valley, CA
Shared published servicesCardiovascular Disease · Hemet, CA
Shared published servicesCardiovascular Disease · Roseville, CA
Shared published servicesCardiovascular Disease · Sacramento, CA
Shared published servicesCardiovascular Disease · Stockton, CA
Shared published servicesCardiovascular Disease · San Diego, CA
Shared published servicesCardiovascular Disease · Napa, CA
Shared published servicesWe 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 NPI 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.