HCPList Know more before you call. About
A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Zain Ua Sobani, MD with clinicians in the same registry specialty: Gastroenterology · Internal Medicine (CMS).

NEW HAVEN, CT · Exact areaEdit location

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

Michelle Louise Hughes, M.D.

Gastroenterology (CMS) · New Haven, CT

Shared published services
3 shared services · view billing descriptions
  • 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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
75%Service-mix similarityView profile →

Louis A Chaptini, MD

Gastroenterology (CMS) · New Haven, CT

Shared published services
3 shared services · view billing descriptions
  • 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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
73%Service-mix similarityView profile →

Fatima Khan, MD

Gastroenterology · Internal Medicine (CMS) · New Haven, CT

Shared published services
3 shared services · view billing descriptions
  • 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)
  • Biopsy of large bowel using a flexible endoscope (45380)
68%Service-mix similarityView profile →

Darrick K Li, MD, PHD

Gastroenterology (CMS) · New Haven, CT

Shared published services
3 shared services · view billing descriptions
  • 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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
66%Service-mix similarityView profile →

Kenneth Hung, M.D.

Gastroenterology · Internal Medicine (CMS) · New Haven, CT

Shared published services
3 shared services · view billing descriptions
  • 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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
64%Service-mix similarityView profile →

Sowmya Sharma, MD

Gastroenterology · Internal Medicine (CMS) · New Haven, CT

Shared published services
3 shared services · view billing descriptions
  • 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)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
61%Service-mix similarityView profile →

Jill Katherine Jinks Gaidos, MD

Gastroenterology (CMS) · New Haven, CT

Shared published services
3 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
59%Service-mix similarityView profile →

Daniel Joseph Zanchetti, M.D.

Gastroenterology · Internal Medicine (CMS) · New Haven, CT

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

Pramod K Mistry, MBBS PHD

Gastroenterology · Internal Medicine (CMS) · New Haven, CT

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
55%Service-mix similarityView profile →

Alexander Levy, MD

Gastroenterology (CMS) · New Haven, CT

Shared published services
2 shared services · view billing descriptions
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
  • Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)
55%Service-mix similarityView profile →

Mae K Tighe, M.D.

Gastroenterology · Internal Medicine (CMS) · New Haven, CT

Shared published services
3 shared services · view billing descriptions
  • 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)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
53%Service-mix similarityView profile →

Cary A Caldwell, M.D.

Gastroenterology (CMS) · New Haven, CT

Shared published services
3 shared services · view billing descriptions
  • 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)
  • Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)
52%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.