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

BROOKLYN, NY · Exact areaEdit location

2024 published service data · 93 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Jay Elliot Weissbluth, 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 low level od decision making, if using time, 20 minutes or more (99213)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
80%Service-mix similarityView profile →

Po Cheng Chu, MD

Gastroenterology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
73%Service-mix similarityView profile →

Nan Sandar, M.D.

Gastroenterology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
71%Service-mix similarityView profile →

Madhavi Reddy, M.D.

Gastroenterology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
63%Service-mix similarityView profile →

Ronald Moore Chase, M.D.

Orthopedic Surgery (CMS) · Brooklyn, NY

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
49%Service-mix similarityView profile →

Ira E Mayer, MD

Gastroenterology (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
47%Service-mix similarityView profile →

Herman Tessler, 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 low level od decision making, if using time, 20 minutes or more (99213)
  • Insertion of needle into vein for collection of blood sample (36415)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
41%Service-mix similarityView profile →

Pratap Kumar Gadangi, MD

Colorectal Surgery (Proctology) · General Surgery (CMS) · Brooklyn, NY

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
40%Service-mix similarityView profile →

Mohsen A Habib, M.D.

Otolaryngology (CMS) · Brooklyn, NY

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
37%Service-mix similarityView profile →

Elia Kassab, M.D.

Endocrinology (CMS) · Brooklyn, NY

Shared published services
1 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
35%Service-mix similarityView profile →

Tamila Selitsky, DO

Obstetrics/Gynecology · Osteopathic Manipulative Medicine (CMS) · Brooklyn, NY

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)
  • Insertion of needle into vein for collection of blood sample (36415)
33%Service-mix similarityView profile →

Myat San, M.D.

Internal Medicine (CMS) · Brooklyn, NY

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)
33%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.