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Compare the published Medicare service mix of Andrea S. Tieng, M.D. with clinicians in the same registry specialty: Gastroenterology (CMS).

RANCHO CUCAMONGA, CA · Exact areaEdit location

2024 published service data · 4 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Bhavesh Patel, M.D.

Gastroenterology · Internal Medicine (CMS) · Rancho Cucamonga, CA

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

Hussein Abidali, DO

Gastroenterology · Internal Medicine (CMS) · Rancho Cucamonga, CA

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

Deborah Anghesom-Negusse, MD

Gastroenterology · Internal Medicine (CMS) · Rancho Cucamonga, CA

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 esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk (G0121)
47%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.