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Compare the published Medicare service mix of Marc Fenster, MD with clinicians in the same registry specialty: Internal Medicine (CMS).

NY · Exact areaEdit location

2024 published service data · 500 eligible profiles compared. This search reached its 500-profile comparison limit, using NPI order. Narrow the location for a more focused comparison. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Sushma Venugopal, M.D.

Gastroenterology · Internal Medicine (CMS) · Cooperstown, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
100%Service-mix similarityView profile →

Sulaiman Azeez, M.D.

Gastroenterology · Internal Medicine (CMS) · Bronx, NY

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

Sehem Ghazala, M.D.

Specialty details in registry · Buffalo, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
76%Service-mix similarityView profile →

Joan A Culpepper-Morgan, M.D.

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

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
75%Service-mix similarityView profile →

Joseph Warren Rinaldi, MD

Gastroenterology · Internal Medicine (CMS) · Bronx, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
74%Service-mix similarityView profile →

Bhavna N Balar, M.D.

Gastroenterology (CMS) · Bronx, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
71%Service-mix similarityView profile →

Jose Antonio Hernandez Roman, MD

Gastroenterology (CMS) · Manhasset, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
69%Service-mix similarityView profile →

Kelley Yan, M.D.

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

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
68%Service-mix similarityView profile →

Michael Jason Mintz, MD

Gastroenterology (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
68%Service-mix similarityView profile →

Laura Charles Sahyoun, M.D.

Gastroenterology (CMS) · New York, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
68%Service-mix similarityView profile →

David Widjaja, MD

Gastroenterology (CMS) · Bronx, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
65%Service-mix similarityView profile →

Dennis Demeria, M.D.

Gastroenterology · Internal Medicine (CMS) · Brooklyn, NY

Shared published services
1 shared services · view billing descriptions
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)
63%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.