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Compare the published Medicare service mix of Robin Zachariah, M.D. with clinicians in the same registry specialty: Gastroenterology · Internal Medicine (CMS).

DURHAM, NC · Exact areaEdit location

2024 published service data · 44 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Martin Poleski, MD

Specialty details in registry · Durham, NC

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)
  • Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes (99153)
71%Service-mix similarityView profile →

Melissa Gail Teitelman, MD

Gastroenterology · Internal Medicine (CMS) · Durham, NC

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Measurement of hydrogen in breath to test for stomach and bowel symptoms (91065)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
70%Service-mix similarityView profile →

Paul Norman Cassis, M.D.

Gastroenterology (CMS) · Durham, NC

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)
  • Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes (99153)
70%Service-mix similarityView profile →

Joshua Lee, MD

Gastroenterology (CMS) · Durham, NC

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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
62%Service-mix similarityView profile →

Jeremy Romek Glissen Brown, M.D.

Gastroenterology (CMS) · Durham, NC

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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
62%Service-mix similarityView profile →

Iris Lillian Vance, MD

Gastroenterology · Internal Medicine (CMS) · Durham, NC

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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
62%Service-mix similarityView profile →

Annmarie Louise Kieber-Emmons

Gastroenterology (CMS) · Durham, NC

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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
61%Service-mix similarityView profile →

Jane Onken, M.D.

Gastroenterology (CMS) · Durham, NC

Shared published services
3 shared services · view billing descriptions
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Measurement of hydrogen in breath to test for stomach and bowel symptoms (91065)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
61%Service-mix similarityView profile →

David Andrew Tendler, MD

Gastroenterology · Internal Medicine (CMS) · Durham, NC

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)
  • Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes (99153)
61%Service-mix similarityView profile →

Benjamin Rembold Lloyd, M.D.

Gastroenterology (CMS) · Durham, NC

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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
59%Service-mix similarityView profile →

Scott Manski

Gastroenterology (CMS) · Durham, NC

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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
58%Service-mix similarityView profile →

Daniel M Wild, M.D.

Gastroenterology (CMS) · Durham, NC

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)
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
57%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.