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 Craig A Duncan, D.O. with clinicians in the same registry specialty: Surgery.

MI · Exact areaEdit location

2024 published service data · 500 eligible profiles compared. This search reached its 500-profile comparison limit, using NPI order. Narrow the location for a more focused comparison. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jeremy James Kuiper, M.D.

Surgery · Fremont, MI

Shared published services
3 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
85%Service-mix similarityView profile →

Kellyann Vandendool, MD

Surgery · Ludington, MI

Shared published services
3 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
81%Service-mix similarityView profile →

Garrick R. Cvitkovich, MD

Surgery · Grayling, MI

Shared published services
3 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
78%Service-mix similarityView profile →

James Richard Shurlow, D.O.

Surgery · Grayling, MI

Shared published services
3 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
72%Service-mix similarityView profile →

Erich Stocks Schafer, D.O.

Surgery · Fremont, MI

Shared published services
2 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
72%Service-mix similarityView profile →

Brigit Kerry Brennan, MD

Surgery · Hastings, MI

Shared published services
2 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Colorectal cancer screening; colonoscopy on individual at high risk (G0105)
71%Service-mix similarityView profile →

Patrick P Bulinski, M.D.

Surgery · Marquette, MI

Shared published services
3 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Colorectal cancer screening; colonoscopy on individual at high risk (G0105)
67%Service-mix similarityView profile →

Lindsay Michelle Harden, D.O.

Surgery · Pontiac, MI

Shared published services
3 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
67%Service-mix similarityView profile →

Stephanie Lemaster, MD

Surgery · Alpena, MI

Shared published services
3 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
66%Service-mix similarityView profile →

Timothy Matthew Iseri, MD

Surgery · Cadillac, MI

Shared published services
3 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
64%Service-mix similarityView profile →

Kegan Michael Rummel, D.O.

Surgery · Fremont, MI

Shared published services
1 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
63%Service-mix similarityView profile →

Gabriel Bakula Corvetto, MD

Surgery · Ludington, MI

Shared published services
1 shared services · view billing descriptions
  • Biopsy of large bowel using a flexible endoscope (45380)
63%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.