Hendrikus Johannes Ma Lemmens, MD
Anesthesiology · Stanford, CA
Shared published services2 shared services · view billing descriptions
100%Service-mix similarityView profile →
Similar work.
More providers to explore.
Compare the published Medicare service mix of Marianne Chen-Lin Chen, MD with clinicians in the same registry specialty: Anesthesiology.
STANFORD, CA · Exact areaEdit location
2024 published service data · 180 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.
Aileen Marie Adriano, MD
Anesthesiology · Stanford, CA
Shared published services2 shared services · view billing descriptions
100%Service-mix similarityView profile →
Meihsi Chen, MD
Anesthesiology · Stanford, CA
Shared published services2 shared services · view billing descriptions
85%Service-mix similarityView profile →
Clemens Maria Ortner, MD
Anesthesiology · Stanford, CA
Shared published services1 shared services · view billing descriptions
80%Service-mix similarityView profile →
Jalal Kenji Baruni, MD
Anesthesiology · Stanford, CA
Shared published services1 shared services · view billing descriptions
80%Service-mix similarityView profile →
Natalya Sarah Hasan, MD
Anesthesiology · Stanford, CA
Shared published services1 shared services · view billing descriptions
80%Service-mix similarityView profile →
Martin Stephan Angst, MD
Anesthesiology · Stanford, CA
Shared published services1 shared services · view billing descriptions
80%Service-mix similarityView profile →
Pedro Paulo Tanaka, MD
Anesthesiology · Stanford, CA
Shared published services1 shared services · view billing descriptions
80%Service-mix similarityView profile →
Zena Loree Knight, MD
Anesthesiology · Stanford, CA
Shared published services1 shared services · view billing descriptions
80%Service-mix similarityView profile →
Louise Ying Pw Sun, MD
Anesthesiology · Stanford, CA
Shared published services1 shared services · view billing descriptions
80%Service-mix similarityView profile →
Boris Dov Heifets, MD, PHD
Anesthesiology · Stanford, CA
Shared published services1 shared services · view billing descriptions
80%Service-mix similarityView profile →
Eric Chung Sun, MD, PHD
Anesthesiology · Stanford, CA
Shared published services1 shared services · view billing descriptions
80%Service-mix similarityView 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 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.