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 Oleg Katcher, MD 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.

Rabin Rahmani, M.D.

Gastroenterology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional (99211)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
74%Service-mix similarityView profile →

Kiranpreet Singh Parmar, MD

Gastroenterology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
69%Service-mix similarityView profile →

Joseph P Kingsbery, M.D.

Gastroenterology · Internal Medicine (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
69%Service-mix similarityView profile →

Nison L Badalov, M.D.

Gastroenterology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional (99211)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
68%Service-mix similarityView profile →

Jonathan Ari Erber, MD

Gastroenterology · Internal Medicine (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Ultrasound scan of organ tissue for measuring elasticity (76981)
68%Service-mix similarityView profile →

Pierre Hindy, M.D.

Gastroenterology · Internal Medicine (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional (99211)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
66%Service-mix similarityView profile →

Yevgeny Litvak, MD

Gastroenterology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Complete ultrasound scan of abdomen (76700)
  • Ultrasound of abdomen and pelvis artery and vein blood flow (93976)
66%Service-mix similarityView profile →

Alexander Brun, MD

Gastroenterology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Ultrasound scan of organ tissue for measuring elasticity (76981)
66%Service-mix similarityView profile →

Konstantin Vaizman, M.D.

Gastroenterology · Internal Medicine (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Complete ultrasound scan of abdomen (76700)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
66%Service-mix similarityView profile →

Scott M Tenner, MD

Gastroenterology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Complete ultrasound scan of abdomen (76700)
  • Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional (99211)
65%Service-mix similarityView profile →

Vincent Rovito, MD

Gastroenterology · Internal Medicine (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
64%Service-mix similarityView profile →

Gary Gettenberg, M.D.

Gastroenterology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
64%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.