Nu Chai, M.D.
Pain Management (CMS) · San Francisco, CA
Shared published services1 shared services · view billing descriptions
48%Service-mix similarityView profile →
Similar work.
More providers to explore.
Compare the published Medicare service mix of George Chang Chien, D.O. with clinicians in the same registry specialty: Pain Management · Physical Medicine And Rehabilitation (CMS).
CA · Exact areaEdit location
2024 published service data · 145 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.
Lawrence R Poree, MD
Anesthesiology · Interventional Pain Management (CMS) · San Francisco, CA
Shared published services1 shared services · view billing descriptions
39%Service-mix similarityView profile →
Nathan Singer, M.D.
Anesthesiology · Internal Medicine · Interventional Pain Management (CMS) · Santa Maria, CA
Shared published services1 shared services · view billing descriptions
30%Service-mix similarityView profile →
Brett C. Lockman, DO
Addiction Medicine · Interventional Pain Management · Osteopathic Manipulative Medicine · Physical Medicine And Rehabilitation · Sports Medicine (CMS) · Sonora, CA
Shared published services1 shared services · view billing descriptions
30%Service-mix similarityView profile →
Paul Chen Lee, M.D.
Interventional Pain Management · Pain Management · Physical Medicine And Rehabilitation (CMS) · Fullerton, CA
Shared published services1 shared services · view billing descriptions
29%Service-mix similarityView profile →
David Ng
Pain Management (CMS) · Temecula, CA
Shared published services1 shared services · view billing descriptions
28%Service-mix similarityView profile →
Christopher Yih, DO
Interventional Pain Management · Orthopedic Surgery (CMS) · Buena Park, CA
Shared published services1 shared services · view billing descriptions
27%Service-mix similarityView profile →
Phillip H Lim, D.O., MPH
Anesthesiology · Interventional Pain Management · Pain Management (CMS) · Buena Park, CA
Shared published services1 shared services · view billing descriptions
27%Service-mix similarityView profile →
Namratha Prabhu, M.D.
Anesthesiology (CMS) · La Mesa, CA
Shared published services1 shared services · view billing descriptions
27%Service-mix similarityView profile →
Hamid R Fadavi, D.O.
Interventional Pain Management · Physical Medicine And Rehabilitation (CMS) · Laguna Hills, CA
Shared published services1 shared services · view billing descriptions
26%Service-mix similarityView profile →
Navneet K. Boddu, M.D.
Anesthesiology (CMS) · San Diego, CA
Shared published services1 shared services · view billing descriptions
25%Service-mix similarityView profile →
Brandon A Vannoord, MD
Interventional Pain Management · Pain Management (CMS) · San Diego, CA
Shared published services1 shared services · view billing descriptions
24%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.