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

BROOKLYN, NY · Exact areaEdit location

2024 published service data · 125 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Tarek H Alansari

Gastroenterology · Internal Medicine (CMS) · Brooklyn, 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)
  • Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43235)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
73%Service-mix similarityView profile →

Muhammad Abdullah, MD

Gastroenterology · Internal Medicine (CMS) · Brooklyn, 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)
  • Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43235)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
65%Service-mix similarityView profile →

Achintya Dinesh Singh, MBBS, MD

Specialty details in registry · 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 →

John W Trillo, MD

Gastroenterology · Internal Medicine (CMS) · Brooklyn, 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)
  • Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43235)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
58%Service-mix similarityView profile →

Michael Bernstein

Gastroenterology · Internal Medicine (CMS) · Brooklyn, 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)
  • Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43235)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
56%Service-mix similarityView profile →

Yevgeniy Arefiev, M.D.

Gastroenterology (CMS) · Brooklyn, 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)
  • Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43235)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
52%Service-mix similarityView profile →

Mukul Arya, M.D.

Gastroenterology · Internal Medicine (CMS) · Brooklyn, 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)
  • Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43235)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
49%Service-mix similarityView profile →

Henry Brejt, M.D.

Gastroenterology · Internal Medicine (CMS) · Brooklyn, 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)
  • Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43235)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
48%Service-mix similarityView profile →

Christopher Chum, D.O.

Gastroenterology (CMS) · Brooklyn, 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)
  • Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43235)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
47%Service-mix similarityView profile →

Judah Horowitz, MD

Gastroenterology (CMS) · Brooklyn, 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)
  • Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43235)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
43%Service-mix similarityView profile →

Seth Lapin, DO

Gastroenterology · Internal Medicine (CMS) · Brooklyn, NY

Shared published services
2 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)
43%Service-mix similarityView profile →

Mohammad Nawaz, M.D.

Gastroenterology (CMS) · Brooklyn, NY

Shared published services
2 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)
43%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.