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Compare the published Medicare service mix of James Peter Kromhout, M.D. with clinicians in the same registry specialty: Gastroenterology (CMS).

MN · Exact areaEdit location

2024 published service data · 302 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Scot W Hutton, MD

Gastroenterology · Internal Medicine (CMS) · Saint Cloud, MN

Shared published services
3 shared services · view billing descriptions
  • Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Colorectal cancer screening; colonoscopy on individual at high risk (G0105)
87%Service-mix similarityView profile →

Vandana Nehra, M.D.

Gastroenterology (CMS) · Rochester, MN

Shared published services
3 shared services · view billing descriptions
  • Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
84%Service-mix similarityView profile →

Thomas R Viggiano, M.D.

Gastroenterology (CMS) · Rochester, MN

Shared published services
3 shared services · view billing descriptions
  • Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Colorectal cancer screening; colonoscopy on individual at high risk (G0105)
81%Service-mix similarityView profile →

Mustafa A Tiewala, M.D.

Gastroenterology · Internal Medicine (CMS) · Minneapolis, MN

Shared published services
3 shared services · view billing descriptions
  • Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
80%Service-mix similarityView profile →

Albert S Hammond, MD

Gastroenterology · Internal Medicine (CMS) · Saint Cloud, MN

Shared published services
3 shared services · view billing descriptions
  • Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Colorectal cancer screening; colonoscopy on individual at high risk (G0105)
80%Service-mix similarityView profile →

Navreet Malhi Chowla, MD

Gastroenterology (CMS) · Rochester, MN

Shared published services
3 shared services · view billing descriptions
  • Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
79%Service-mix similarityView profile →

John Edward Eaton, M.D.

Gastroenterology (CMS) · Rochester, MN

Shared published services
3 shared services · view billing descriptions
  • Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Colorectal cancer screening; colonoscopy on individual at high risk (G0105)
75%Service-mix similarityView profile →

Steven H Bollinger, MD

Gastroenterology · Internal Medicine (CMS) · Saint Cloud, MN

Shared published services
3 shared services · view billing descriptions
  • Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Colorectal cancer screening; colonoscopy on individual at high risk (G0105)
75%Service-mix similarityView profile →

Sabina Khan, MD

Gastroenterology (CMS) · Waconia, MN

Shared published services
3 shared services · view billing descriptions
  • Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Colorectal cancer screening; colonoscopy on individual at high risk (G0105)
73%Service-mix similarityView profile →

Konstantios Papadakis, M.D.

Gastroenterology (CMS) · Rochester, MN

Shared published services
3 shared services · view billing descriptions
  • Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Colorectal cancer screening; colonoscopy on individual at high risk (G0105)
73%Service-mix similarityView profile →

Laura E Raffals, M.D.

Gastroenterology (CMS) · Rochester, MN

Shared published services
3 shared services · view billing descriptions
  • Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
72%Service-mix similarityView profile →

William J Sachs

Specialty details in registry · Brainerd, MN

Shared published services
3 shared services · view billing descriptions
  • Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Colorectal cancer screening; colonoscopy on individual at high risk (G0105)
72%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.