HCPList Know more before you call. About
A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Matthew Hyun Joon Lee, D.O. with clinicians in the same registry specialty: Hematology/Oncology · Internal Medicine (CMS).

CA · Exact areaEdit location

2024 published service data · 272 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Hely Shah, M.D.

Hematology/Oncology (CMS) · Ukiah, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
54%Service-mix similarityView profile →

Arlene Ledesma Yu, MD, MBA

Hematology/Oncology (CMS) · Cerritos, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
46%Service-mix similarityView profile →

Muneeb Asim Choudry, M.D.

Medical Oncology (CMS) · Escondido, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
41%Service-mix similarityView profile →

Sandhya Srinivas, MD

Medical Oncology (CMS) · Stanford, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
39%Service-mix similarityView profile →

Li Lisa Ge, MD

Internal Medicine (CMS) · Fresno, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
39%Service-mix similarityView profile →

Anwer Alam Shaikh, M.D.

Hematology/Oncology (CMS) · Vista, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
37%Service-mix similarityView profile →

Jacob Stephen Thomas

Medical Oncology (CMS) · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
37%Service-mix similarityView profile →

Timothy David Gilligan, M.D.

Internal Medicine · Medical Oncology (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
37%Service-mix similarityView profile →

Jin Sun L Bitar, M.D.

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

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
35%Service-mix similarityView profile →

Chien-Shing Chen, M.D.

Internal Medicine · Medical Oncology (CMS) · Loma Linda, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
33%Service-mix similarityView profile →

Parminder Singh Sidhu, MD

Hematology/Oncology · Hospice/Palliative Care · Internal Medicine · Pain Management (CMS) · Merced, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
33%Service-mix similarityView profile →

Iulia Giuroiu, M.D.

Hematology/Oncology (CMS) · Mountain View, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
32%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.