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Compare the published Medicare service mix of Jeffrey Callard, PA with clinicians in the same registry specialty: Physician Assistant.

ANN ARBOR, MI · Exact areaEdit location

2024 published service data · 274 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Hannah Joslin Shields, PA-C

Physician Assistant · Ann Arbor, MI

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)
  • Electrocardiogram (ecg) 1 to 3 leads with review by physician only (93042)
91%Service-mix similarityView profile →

Lauren Lesmeister

Physician Assistant · Ann Arbor, MI

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)
87%Service-mix similarityView profile →

Brian Christopher Rensch, PA-C

Physician Assistant · Ann Arbor, MI

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)
87%Service-mix similarityView profile →

Daniel William Sutherland, PA-C

Physician Assistant · Ann Arbor, MI

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)
87%Service-mix similarityView profile →

Rachal Graff, PA-C

Physician Assistant · Ann Arbor, MI

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)
87%Service-mix similarityView profile →

Johanna Carolyn Heslop, PA-C

Physician Assistant · Ann Arbor, MI

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)
86%Service-mix similarityView profile →

Amy Beth Prentiss, PA-C

Physician Assistant · Ann Arbor, MI

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)
86%Service-mix similarityView profile →

Julie Johnson, PA-C

Physician Assistant · Ann Arbor, MI

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)
86%Service-mix similarityView profile →

Kristina Kay Masters, PAC

Physician Assistant · Ann Arbor, MI

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)
76%Service-mix similarityView profile →

Brian Arthur Trojniak, PA-C, MS

Physician Assistant · Ann Arbor, MI

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)
75%Service-mix similarityView profile →

Daniel Svacha, PA-C

Physician Assistant · Ann Arbor, MI

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)
70%Service-mix similarityView profile →

Stacy Lynn Waack, PA-C

Physician Assistant · Ann Arbor, 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 →
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.