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 Robert William Wierenga, MD with clinicians in the same registry specialty: Emergency Medicine.

KALAMAZOO, MI · Exact areaEdit location

2024 published service data · 108 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Ryan Bade, DO

Emergency Medicine · Kalamazoo, MI

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
100%Service-mix similarityView profile →

Justin Winkler, MD

Emergency Medicine · Kalamazoo, MI

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
100%Service-mix similarityView profile →

Gina Marie Jiamboi, MD

Emergency Medicine · Kalamazoo, MI

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
86%Service-mix similarityView profile →

Edwin Lauritz Fundingsland, DO

Emergency Medicine · Kalamazoo, MI

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
82%Service-mix similarityView profile →

Joseph Keller Keithley, MD

Emergency Medicine · Kalamazoo, MI

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
79%Service-mix similarityView profile →

Brannon Charles Duncan, M.D.

Emergency Medicine · Kalamazoo, MI

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
76%Service-mix similarityView profile →

Millard Doster, MD

Emergency Medicine · Kalamazoo, MI

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
74%Service-mix similarityView profile →

Shannon Naughton, DO

Emergency Medicine · Kalamazoo, MI

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
71%Service-mix similarityView profile →

Eric Seashore Wolatz, MD

Emergency Medicine · Kalamazoo, MI

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
70%Service-mix similarityView profile →

Nathaniel Talbot Johnson, MD

Emergency Medicine · Kalamazoo, MI

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
69%Service-mix similarityView profile →

Mauli Ketan Shah, DO

Emergency Medicine · Kalamazoo, MI

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
68%Service-mix similarityView profile →

Alexandra C Dinello, MD

Emergency Medicine · Kalamazoo, MI

Shared published services
1 shared services · view billing descriptions
  • Emergency department visit with high level of medical decision making (99285)
67%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.