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Compare the published Medicare service mix of Brock Justin Lanier, MD with clinicians in the same registry specialty: General Surgery (CMS).

LOS ANGELES, CA · Exact areaEdit location

2024 published service data · 14 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Curtis Lisante Cetrulo, MD

General Surgery · Plastic And Reconstructive Surgery (CMS) · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • Preparation of skin graft site of trunk, arms, or legs, 100.0 sq cm or 1% body area for infants and children, or less (15002)
42%Service-mix similarityView profile →

Samer Phillip Alnajjar, MD

Plastic And Reconstructive Surgery (CMS) · Los Angeles, CA

Shared published services
1 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)
29%Service-mix similarityView profile →

Regina Yun Baker, M.D.

Plastic And Reconstructive Surgery (CMS) · Los Angeles, CA

Shared published services
1 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)
25%Service-mix similarityView profile →

Charles Y Tseng, MD

Plastic And Reconstructive Surgery (CMS) · Los Angeles, CA

Shared published services
1 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)
24%Service-mix similarityView profile →

Murtaza Rizvi, MD

Hand Surgery · Plastic And Reconstructive Surgery (CMS) · Los Angeles, CA

Shared published services
1 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)
16%Service-mix similarityView profile →

Andrew J Vardanian, MD

Critical Care (Intensivists) · General Surgery · Plastic And Reconstructive Surgery (CMS) · Los Angeles, CA

Shared published services
1 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)
13%Service-mix similarityView profile →

Jason Roostaeian, M.D.

Plastic And Reconstructive Surgery (CMS) · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • Repair of wound by transferring skin, 30.1-60.0 sq cm (14301)
11%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.