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Compare the published Medicare service mix of Jason Earl Chan, M.D. PH.D. with clinicians in the same registry specialty: Hematology/Oncology · Internal Medicine · Medical Oncology (CMS).

LOS ANGELES, CA · Exact areaEdit location

2024 published service data · 92 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Raghuveer Ranganathan, M.D.

Hematology/Oncology · Internal Medicine (CMS) · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
83%Service-mix similarityView profile →

Akil Abid Merchant, M.D.

Hematology/Oncology · Internal Medicine (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, more than 30 minutes (99239)
81%Service-mix similarityView profile →

Joshua Parks Sasine, M.D.

Hematology · Hematology/Oncology · Internal Medicine · Medical Oncology (CMS) · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
80%Service-mix similarityView profile →

George Yaghmour

Hematology/Oncology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, more than 30 minutes (99239)
77%Service-mix similarityView profile →

Roman Leonid Kleynberg, M.D.

Hematology/Oncology (CMS) · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
70%Service-mix similarityView profile →

Cherry Au

Specialty details in registry · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, more than 30 minutes (99239)
61%Service-mix similarityView profile →

Kevin R. Kelly, M.D.

Hematology/Oncology (CMS) · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Hospital discharge day management, more than 30 minutes (99239)
61%Service-mix similarityView profile →

Steven Aloysius Miles, M.D.

Hematology/Oncology · Internal Medicine · Medical Oncology (CMS) · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
57%Service-mix similarityView profile →

Preet Chaudhary, M.D., PHD

Hematology · Medical Oncology (CMS) · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
56%Service-mix similarityView profile →

Karrune Woan

Hematology/Oncology · Hematopoietic Cell Transplantation And Cellular Therapy (CMS) · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
56%Service-mix similarityView profile →

Hannah Lee, MD

Hematology/Oncology · Internal Medicine (CMS) · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
55%Service-mix similarityView profile →

Eric Leon Tam, MD

Hematology/Oncology · Internal Medicine (CMS) · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
55%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.