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Compare the published Medicare service mix of Evan B Grossman, M.D. with clinicians in the same registry specialty: Gastroenterology (CMS).

NEW YORK, NY · Exact areaEdit location

2024 published service data · 335 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

David Wenhan Wan, M.D.

Gastroenterology (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • 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)
86%Service-mix similarityView profile →

Calley Hannah Salomon Levine, MD

Gastroenterology (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • 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)
83%Service-mix similarityView profile →

Dana Zalkin

Gastroenterology · Internal Medicine (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • 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)
83%Service-mix similarityView profile →

Sheila Rustgi

Gastroenterology (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • 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)
81%Service-mix similarityView profile →

Tina Park, M.D.

Gastroenterology · Internal Medicine (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
80%Service-mix similarityView profile →

Wendy Rabbenou

Gastroenterology (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • 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)
80%Service-mix similarityView profile →

Zoe E. Lawrence, MD

Gastroenterology (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • 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)
79%Service-mix similarityView profile →

David Herbert Robbins, MD

Gastroenterology (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • 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)
78%Service-mix similarityView profile →

Aimee Lee Lucas, M.D.

Internal Medicine (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • 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)
78%Service-mix similarityView profile →

Heather Laura Klavan, M.D.

Gastroenterology (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • 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)
78%Service-mix similarityView profile →

David Sung Lee, MD

Gastroenterology (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • 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)
77%Service-mix similarityView profile →

Carl V. Crawford, M.D.

Gastroenterology (CMS) · New York, NY

Shared published services
3 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
  • 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)
77%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.