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Compare the published Medicare service mix of Isaac Joon Choi, M.D. with clinicians in the same registry specialty: Emergency Medicine.

DALLAS, TX · Exact areaEdit location

2024 published service data · 366 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Hany Ahmed Abdelfattah, D.O.

Emergency Medicine · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
94%Service-mix similarityView profile →

Cayenne Price, MD

Emergency Medicine · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
94%Service-mix similarityView profile →

Timothy Paul Chamberlain, MD

Emergency Medicine · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
94%Service-mix similarityView profile →

Brad Joseph Silver, M.D.

Emergency Medicine · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
94%Service-mix similarityView profile →

David Pearce Bryant, D.O.

Emergency Medicine · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
94%Service-mix similarityView profile →

Naveed Hoda, MD

Emergency Medicine · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
94%Service-mix similarityView profile →

Erica M Mosely, MD

Emergency Medicine · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
94%Service-mix similarityView profile →

Todd Michael Phillips, M.D.

Emergency Medicine · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
94%Service-mix similarityView profile →

Nathan Vanhoff, DO

Emergency Medicine · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
94%Service-mix similarityView profile →

Nelson Jaeggli, M.D.

Emergency Medicine · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
94%Service-mix similarityView profile →

Richard Philip Williams, D.O.

Emergency Medicine · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
94%Service-mix similarityView profile →

Jacob Freudenberger, DO

Emergency Medicine · Dallas, TX

Shared published services
3 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
  • Critical care, first 30-74 minutes (99291)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)
94%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.