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 Elika Derek, M.D. with clinicians in the same registry specialty: Surgery.

LOS ANGELES, CA · Exact areaEdit location

2024 published service data · 82 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Warren Frederick Gold, MD

Surgery · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Removal of muscle and/or tissue, each additional 20.0 sq cm or less (11046)
  • Removal of skin and tissue, 20.0 sq cm or less (11042)
  • Removal of muscle and/or tissue, 20.0 sq cm or less (11043)
51%Service-mix similarityView profile →

Rick Scott Mai, MD

Surgery · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes (99305)
43%Service-mix similarityView profile →

Babak Hajhosseini, M.D.

Surgery · Los Angeles, CA

Shared published services
3 shared services · view billing descriptions
  • Removal of skin and tissue, 20.0 sq cm or less (11042)
  • Removal of muscle and/or tissue, 20.0 sq cm or less (11043)
  • Removal of skin and tissue, each additional 20.0 sq cm or less (11045)
30%Service-mix similarityView profile →

Miriam Abaunza, M.D.

Surgery · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)
16%Service-mix similarityView profile →

Randal Paul Arase, MD

Surgery · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
8%Service-mix similarityView profile →

Norman C. Bautista, M.D.

Surgery · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
8%Service-mix similarityView profile →

David Edward Fermelia, M D

Surgery · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
8%Service-mix similarityView profile →

On Wang, M.D.

Surgery · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
7%Service-mix similarityView profile →

Sharon Shiraga, MD

Surgery · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
6%Service-mix similarityView profile →

Jiah Jang, D.O.

Surgery · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
6%Service-mix similarityView profile →

Sang H. Choi, M.D.

Surgery · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
6%Service-mix similarityView profile →

Wesley Randolph Heartfield, M.D.

Surgery · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
6%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.