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Compare the published Medicare service mix of Sun H Lee, MD with clinicians in the same registry specialty: Neurosurgery (CMS).

LOS ANGELES, CA · Exact areaEdit location

2024 published service data · 44 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jeremiah Nicholas Johnson, M.D.

Neurosurgery (CMS) · Los Angeles, CA

Shared published services
2 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)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
83%Service-mix similarityView profile →

Ben Strickland, MD

Neurosurgery (CMS) · Los Angeles, CA

Shared published services
3 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)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
83%Service-mix similarityView profile →

Marvin Bergsneider, MD

Neurosurgery (CMS) · Los Angeles, CA

Shared published services
2 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)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
69%Service-mix similarityView profile →

Samer Salim Ghostine, M.D.,M.S.

Neurosurgery (CMS) · Los Angeles, CA

Shared published services
2 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)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
62%Service-mix similarityView profile →

John Chung-Liang Liu, MD

Neurosurgery (CMS) · Los Angeles, CA

Shared published services
2 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)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
61%Service-mix similarityView profile →

Michael Meier Safaee, MD

Neurosurgery (CMS) · Los Angeles, CA

Shared published services
2 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)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
61%Service-mix similarityView profile →

Franklin Westhout, M.D.

Specialty details in registry · Los Angeles, CA

Shared published services
2 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)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
56%Service-mix similarityView profile →

Jasvinder Singh Nangiana, M.D.

Neurosurgery (CMS) · Los Angeles, CA

Shared published services
3 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)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
55%Service-mix similarityView profile →

Robert C. Rennert, M.D.

Neurosurgery (CMS) · Los Angeles, CA

Shared published services
3 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)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
53%Service-mix similarityView profile →

Aria Fallah, MD, MSC

Neurosurgery (CMS) · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
50%Service-mix similarityView profile →

Frank Joseph Attenello, M.D., M.S.

Neurosurgery (CMS) · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
50%Service-mix similarityView profile →

Anthony Chin-Hsiu Wang, MD

Neurosurgery (CMS) · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
49%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.