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Compare the published Medicare service mix of Rajesh N Keswani, MD with clinicians in the same registry specialty: Gastroenterology · Internal Medicine (CMS).

SAINT LOUIS, MO · Exact areaEdit location

2024 published service data · 110 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Koushik Kumar Das, MD

Gastroenterology · Internal Medicine (CMS) · Saint Louis, 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)
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
70%Service-mix similarityView profile →

Stephen Lawler Hasak, MD

Gastroenterology · Internal Medicine (CMS) · Saint Louis, 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)
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
70%Service-mix similarityView profile →

Gabriel David Lang, MD

Gastroenterology · Internal Medicine (CMS) · Saint Louis, 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)
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • Removal of stone or debris from bile or pancreatic duct using a flexible endoscope (43264)
68%Service-mix similarityView profile →

Arvind Rengarajan, MD

Gastroenterology · Internal Medicine (CMS) · Saint Louis, 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)
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
66%Service-mix similarityView profile →

Wissam Kiwan, M.D.

Gastroenterology · Internal Medicine (CMS) · Saint Louis, 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)
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • Removal of stone or debris from bile or pancreatic duct using a flexible endoscope (43264)
66%Service-mix similarityView profile →

Vladimir Markovicl Kushnir, MD

Gastroenterology · Internal Medicine (CMS) · Saint Louis, 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)
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
65%Service-mix similarityView profile →

David Lee Ulrich, M.D.

Gastroenterology · Internal Medicine (CMS) · Saint Louis, 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)
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • Removal of stone or debris from bile or pancreatic duct using a flexible endoscope (43264)
64%Service-mix similarityView profile →

Samer Alkaade, M D

Gastroenterology · Internal Medicine (CMS) · Saint Louis, MO

Shared published services
3 shared services · view billing descriptions
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • Removal of stone or debris from bile or pancreatic duct using a flexible endoscope (43264)
  • Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth (43237)
61%Service-mix similarityView profile →

Antonio Ricardo Cheesman Rocca, M.D.

Gastroenterology · Internal Medicine (CMS) · Saint Louis, 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)
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • Removal of stone or debris from bile or pancreatic duct using a flexible endoscope (43264)
60%Service-mix similarityView profile →

Nikhil Banerjee, M.D.

Gastroenterology (CMS) · Saint Louis, 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)
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
59%Service-mix similarityView profile →

Jason Gary Bill, MD

Gastroenterology · Internal Medicine (CMS) · Saint Louis, 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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Removal of stone or debris from bile or pancreatic duct using a flexible endoscope (43264)
56%Service-mix similarityView profile →

Chien-Huan Chen, MD

Gastroenterology · Internal Medicine (CMS) · Saint Louis, 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)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • 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.