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Compare the published Medicare service mix of Ajaypal Singh, M.B.B.S. with clinicians in the same registry specialty: Gastroenterology (CMS).

CHICAGO, IL · Exact areaEdit location

2024 published service data · 158 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Neal Ambrish Mehta

Gastroenterology · Internal Medicine (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43242)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
89%Service-mix similarityView profile →

Christopher Grant Chapman, M.D.

Gastroenterology · Internal Medicine (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43242)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
77%Service-mix similarityView profile →

Srinadh Komanduri, M.D.

Gastroenterology · Internal Medicine (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Insertion of stent into pancreatic or bile duct using a flexible endoscope (43274)
63%Service-mix similarityView profile →

Uzma Siddiqui

Gastroenterology · Internal Medicine (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • 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)
62%Service-mix similarityView profile →

Jasmine Sinha, MD MPH

Gastroenterology · Internal Medicine (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Insertion of stent into pancreatic or bile duct using a flexible endoscope (43274)
58%Service-mix similarityView profile →

Dennis Di Chen, MD

Gastroenterology · Internal Medicine (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Insertion of stent into pancreatic or bile duct using a flexible endoscope (43274)
54%Service-mix similarityView profile →

Abdul Aziz Aadam, M.D.

Gastroenterology · Internal Medicine (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Insertion of stent into pancreatic or bile duct using a flexible endoscope (43274)
54%Service-mix similarityView profile →

Shaibal Mazumdar, M.D.

Specialty details in registry · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • 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)
  • Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm (43249)
51%Service-mix similarityView profile →

William Lewis Riles, M.D.

Gastroenterology (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • 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)
  • Biopsy of large bowel using a flexible endoscope (45380)
48%Service-mix similarityView profile →

Terrance Rodrigues, MD

Gastroenterology · Internal Medicine (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Insertion of stent into pancreatic or bile duct using a flexible endoscope (43274)
46%Service-mix similarityView profile →

Rohit Agrawal, MD

Gastroenterology (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Insertion of stent into pancreatic or bile duct using a flexible endoscope (43274)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
45%Service-mix similarityView profile →

Edward Charles Villa, M.D.

Gastroenterology · Internal Medicine (CMS) · Chicago, IL

Shared published services
3 shared services · view billing descriptions
  • Review by radiologist of image from tube placement into bile duct using an endoscope (74328)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Insertion of stent into pancreatic or bile duct using a flexible endoscope (43274)
43%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.