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Compare the published Medicare service mix of Mark J Allen, M.D. with clinicians in the same registry specialty: Specialty details in registry.

KANSAS CITY, MO · Exact areaEdit location

2024 published service data · 30 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Hillary Lane Bownik, M.D

Gastroenterology (CMS) · Kansas City, MO

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Injection of drug or substance under skin or into muscle (96372)
  • Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less (96365)
87%Service-mix similarityView profile →

Sakher M Albadarin, M.D.

Gastroenterology (CMS) · Kansas City, MO

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Injection of drug or substance under skin or into muscle (96372)
  • Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less (96365)
78%Service-mix similarityView profile →

Gregory A Schnell, M.D.

Gastroenterology (CMS) · Kansas City, MO

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Colorectal cancer screening; colonoscopy on individual at high risk (G0105)
69%Service-mix similarityView profile →

Charles William Mcmahon, M.D.

Gastroenterology (CMS) · Kansas City, MO

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less (96365)
  • Biopsy of large bowel using a flexible endoscope (45380)
66%Service-mix similarityView profile →

Kelsey Laine Able, DO

Gastroenterology · Internal Medicine (CMS) · Kansas City, MO

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Colorectal cancer screening; colonoscopy on individual at high risk (G0105)
62%Service-mix similarityView profile →

Brent William Ginsberg, MD

Specialty details in registry · Kansas City, MO

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Colorectal cancer screening; colonoscopy on individual at high risk (G0105)
61%Service-mix similarityView profile →

Quinton D Palmer, MD

Gastroenterology (CMS) · Kansas City, MO

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
59%Service-mix similarityView profile →

Thomas J Shireman, MD

Gastroenterology · Internal Medicine (CMS) · Kansas City, MO

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Colorectal cancer screening; colonoscopy on individual at high risk (G0105)
59%Service-mix similarityView profile →

Rajiv Chhabra, M.D.

Gastroenterology (CMS) · Kansas City, MO

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
58%Service-mix similarityView profile →

Tahar Malek Mahmoudi, MD

Gastroenterology · Internal Medicine (CMS) · Kansas City, MO

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
57%Service-mix similarityView profile →

Ajay Bansal, MD

Gastroenterology · Internal Medicine (CMS) · Kansas City, MO

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
56%Service-mix similarityView profile →

Wendell Kevan Clarkston, MD

Gastroenterology (CMS) · Kansas City, MO

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Biopsy of large bowel using a flexible endoscope (45380)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
56%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.