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Compare the published Medicare service mix of Alan Wong, D.O. with clinicians in the same registry specialty: Emergency Medicine.

FONTANA, CA · Exact areaEdit location

2024 published service data · 29 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Tao Nguyen, M.D.

Emergency Medicine · Fontana, CA

Shared published services
3 shared services · view billing descriptions
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
88%Service-mix similarityView profile →

Brian James Richards, D.O.

Emergency Medicine · Fontana, CA

Shared published services
2 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)
60%Service-mix similarityView profile →

Jonathan Chock, MD

Emergency Medicine · Fontana, CA

Shared published services
2 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)
60%Service-mix similarityView profile →

Justin Dominic Britton, M.D.

Emergency Medicine · Fontana, CA

Shared published services
2 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)
59%Service-mix similarityView profile →

Dae-Won Lee

Emergency Medicine · Fontana, CA

Shared published services
2 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)
59%Service-mix similarityView profile →

Lisa Qian Chen, M.D.

Emergency Medicine · Fontana, CA

Shared published services
2 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)
58%Service-mix similarityView profile →

Neelu Kohli, M.D.

Emergency Medicine · Fontana, CA

Shared published services
2 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • X-ray of chest, 1 view (71045)
57%Service-mix similarityView profile →

Kim Trinh, M.D.

Emergency Medicine · Fontana, CA

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
34%Service-mix similarityView profile →

Santiago Lopez

Emergency Medicine · Fontana, CA

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
34%Service-mix similarityView profile →

David G. Reiley, MD

Emergency Medicine · Fontana, CA

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
34%Service-mix similarityView profile →

Tina Ann Nguyen, MD

Emergency Medicine · Fontana, CA

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
34%Service-mix similarityView profile →

Tam Van Dao, M.D.

Emergency Medicine · Fontana, CA

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with moderate level of medical decision making (99284)
34%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.