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Compare the published Medicare service mix of Tarek Nammour, MD with clinicians in the same registry specialty: Gastroenterology (CMS).

BOSTON, MA · Exact areaEdit location

2024 published service data · 169 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Russell Goodman, M.D.

Gastroenterology · Internal Medicine (CMS) · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
57%Service-mix similarityView profile →

Trisha Pasricha, MD

Gastroenterology (CMS) · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
56%Service-mix similarityView profile →

Emily Dana Bethea, M.D.

Gastroenterology · Internal Medicine (CMS) · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
54%Service-mix similarityView profile →

Kathleen Elizabeth Corey, MD

Gastroenterology (CMS) · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
47%Service-mix similarityView profile →

Irun Bhan, M.D.

Gastroenterology · Internal Medicine (CMS) · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
43%Service-mix similarityView profile →

Jessica R Allegretti, M.D.

Gastroenterology · Internal Medicine (CMS) · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
42%Service-mix similarityView profile →

Suzanne S Chan, M.D., PH. D.

Gastroenterology (CMS) · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
38%Service-mix similarityView profile →

Xiaocen Zhang, MD

Gastroenterology · Internal Medicine (CMS) · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
38%Service-mix similarityView profile →

Anna Elizabeth Rutherford, MD, MPH

Gastroenterology · Internal Medicine (CMS) · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
38%Service-mix similarityView profile →

Ciaran P Kelly, M.D.

Gastroenterology · Internal Medicine (CMS) · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
36%Service-mix similarityView profile →

Samantha Zullow, M.D.

Gastroenterology · Internal Medicine (CMS) · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
36%Service-mix similarityView profile →

Harishankar Gopakumar, M.D

Gastroenterology (CMS) · Boston, MA

Shared published services
1 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
36%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.