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Compare the published Medicare service mix of Brian Joseph Kwan, MD MS with clinicians in the same registry specialty: Emergency Medicine.

SAN DIEGO, CA · Exact areaEdit location

2024 published service data · 285 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Alexandre D Nguyen

Emergency Medicine · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with moderate level of medical decision making (99284)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
83%Service-mix similarityView profile →

Nicolas Matteo Kahl

Emergency Medicine · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with moderate level of medical decision making (99284)
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
82%Service-mix similarityView profile →

Daniel R Lasoff, M.D.

Emergency Medicine · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with moderate level of medical decision making (99284)
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
82%Service-mix similarityView profile →

Amir Aminlari, M.D.

Emergency Medicine · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with moderate level of medical decision making (99284)
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
81%Service-mix similarityView profile →

Allyson A. Kreshak, M.D.

Emergency Medicine · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with moderate level of medical decision making (99284)
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
81%Service-mix similarityView profile →

Vaishal Mahendra Tolia, M.D., M.P.H.

Emergency Medicine · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with moderate level of medical decision making (99284)
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
78%Service-mix similarityView profile →

Erin E. Noste, MD

Emergency Medicine · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with moderate level of medical decision making (99284)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
78%Service-mix similarityView profile →

Michael A. Macias, M.D.

Emergency Medicine · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with moderate level of medical decision making (99284)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
78%Service-mix similarityView profile →

Rahul V Nene, MD, PHD

Emergency Medicine · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with moderate level of medical decision making (99284)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
77%Service-mix similarityView profile →

Andrew Lafree, MD

Emergency Medicine · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with moderate level of medical decision making (99284)
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
77%Service-mix similarityView profile →

Eva Tovar Hirashima, M.D., M.P.H

Emergency Medicine · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with moderate level of medical decision making (99284)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
76%Service-mix similarityView profile →

Christian Jordan Dameff, M.D.

Emergency Medicine · San Diego, CA

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Emergency department visit with moderate level of medical decision making (99284)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
76%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.