HCPList Know more before you call. About
A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Ryan James John Buckley, MD, MPH with clinicians in the same registry specialty: Emergency Medicine.

NEW HAVEN, CT · Exact areaEdit location

2024 published service data · 155 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Nidhi Kadakia, MD

Emergency Medicine · New Haven, CT

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)
  • Emergency department visit with moderate level of medical decision making (99284)
100%Service-mix similarityView profile →

Gee Yoon Park, DO

Emergency Medicine · New Haven, CT

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)
  • Emergency department visit with moderate level of medical decision making (99284)
100%Service-mix similarityView profile →

Amelia Breyre

Emergency Medicine · New Haven, CT

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)
  • Emergency department visit with moderate level of medical decision making (99284)
100%Service-mix similarityView profile →

Edward Robert Melnick, M.D.

Emergency Medicine · New Haven, CT

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)
  • Emergency department visit with moderate level of medical decision making (99284)
100%Service-mix similarityView profile →

Leigh V Evans, MD

Emergency Medicine · New Haven, CT

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)
  • Emergency department visit with moderate level of medical decision making (99284)
100%Service-mix similarityView profile →

Eleanor Anderson Reid, M.D.

Emergency Medicine · New Haven, CT

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)
  • Emergency department visit with moderate level of medical decision making (99284)
100%Service-mix similarityView profile →

Rachel Liu, M.D.

Emergency Medicine · New Haven, CT

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)
  • Emergency department visit with moderate level of medical decision making (99284)
100%Service-mix similarityView profile →

Basmah Safdar, MD

Emergency Medicine · New Haven, CT

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)
  • Emergency department visit with moderate level of medical decision making (99284)
100%Service-mix similarityView profile →

Ashley Ann Jacobson, MD

Emergency Medicine · New Haven, CT

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)
  • Emergency department visit with moderate level of medical decision making (99284)
100%Service-mix similarityView profile →

Caitlin Ryus, MD, MPH

Emergency Medicine · New Haven, CT

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)
  • Emergency department visit with moderate level of medical decision making (99284)
100%Service-mix similarityView profile →

Daniel Vining, MD

Emergency Medicine · New Haven, CT

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)
  • Emergency department visit with moderate level of medical decision making (99284)
100%Service-mix similarityView profile →

Madison Anne Nashu, MD

Emergency Medicine · New Haven, CT

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)
  • Emergency department visit with moderate level of medical decision making (99284)
100%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.