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Compare the published Medicare service mix of Luiz Souza-Filho, M.D. with clinicians in the same registry specialty: Emergency Medicine.

LOS ANGELES, CA · Exact areaEdit location

2024 published service data · 382 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Ramin R Tabatabai, M.D.

Emergency Medicine · Los Angeles, CA

Shared published services
1 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
71%Service-mix similarityView profile →

Caitlin Oldenkamp

Emergency Medicine · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
63%Service-mix similarityView profile →

Michael Hrag Merjanian, MD

Emergency Medicine · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
61%Service-mix similarityView profile →

Katherine Stiene, MD

Emergency Medicine · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
60%Service-mix similarityView profile →

Peter Kelsey Zakevich Milano, M.D.

Emergency Medicine · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
58%Service-mix similarityView profile →

Brittany Leah Grzybowski

Emergency Medicine · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
58%Service-mix similarityView profile →

Hollie Etta Sandlin, M.D

Emergency Medicine · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
58%Service-mix similarityView profile →

Samuel Robert Beckerman, M.D., PH.D.

Emergency Medicine · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
57%Service-mix similarityView profile →

Matthew Hankerson

Emergency Medicine · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
57%Service-mix similarityView profile →

Michelle Pearl, D.O.

Emergency Medicine · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
56%Service-mix similarityView profile →

Arti Taro Gehani, M.D.

Emergency Medicine · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
56%Service-mix similarityView profile →

Evelyn G Lee, M.D.

Emergency Medicine · Los Angeles, CA

Shared published services
2 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
56%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.