Colonoscopy clinicians in Astoria, New York

CMS lists 32 clinicians with a primary specialty of Gastroenterology, Internal Medicine, Family Practice, or General Practice who have billed Medicare for at least one colonoscopy and practice in Astoria, New York (details below).

Colonoscopy volume

Clinician	Colonoscopies billed	Percentile rank
Emanuel Kouroupos, MD	145	79%
Eugene Bonapace, MD	120	71%
Sabino Augello, MD	113	69%
Nicholas Roditis, MD	95	62%
Julie Foont, MD	89	59%
Peter Kim, MD	76	53%
Kasim Kazbay, MD	74	52%
Barry Obadiah, MD	70	50%
Ari Grinspan, MD	61	45%
Frederick Rutkovsky, MD	48	37%
Frank Nelson, MD	42	33%
Bhavana Bhagya Rao, MD	29	25%
Michael Glick, MD	27	23%
Gabriel Castillo, MD	25	22%
Martin Wolff, MD	21	20%
Louis Cohen, MD	20	19%
Anthony Borcich, MD	15	16%
Matthew McNeill, MD	13	14%
Jessica Kimmel, MD	11	13%
Mohamed Abdalla, MD	1-10	13% or below
Valerie Antoine-Gustave	1-10	13% or below
Deborah Chua, MD	1-10	13% or below
Veronika Dubrovskaya, MD	1-10	13% or below
Soonwook Hong, MD	1-10	13% or below
Ugonna Iroku, MD	1-10	13% or below
Neal Joseph, MD	1-10	13% or below
Maia Kayal, MD	1-10	13% or below
James Kim, MD	1-10	13% or below
Samuel Kim, MD	1-10	13% or below
Pruthvi Patel, MD	1-10	13% or below
Max Pitman, MD	1-10	13% or below
Ji Yoon Yoon, MD	1-10	13% or below

Sorted by the number of colonoscopies billed to Medicare, highest first, not by quality or skill. CMS suppresses counts between 1 and 10 to protect patient privacy and publishes the range instead.

Reported in previous releases

CMS does not report a colonoscopy volume for these clinicians in the October 2, 2026 release. Their pages show figures from earlier releases.

Khaled Osman, MD Last reported August 18, 2026

Understanding CMS Data

CMS's "Colonoscopy" category combines specific billing codes for colonoscopy to calculate the number of times each clinician billed Medicare for a "Colonoscopy." These include screening colonoscopy, diagnostic colonoscopy, and colonoscopy with biopsy or polyp removal. CMS's list also includes flexible sigmoidoscopy and laparoscopic appendectomy, so a clinician's count may include those procedures. CMS counts one procedure per patient per day, so a colonoscopy that included both a biopsy and a polyp removal counts once. CMS reports only procedures that clinicians billed to Original Medicare and Medicare Advantage. Therefore, CMS's procedure volume data does not include procedures that clinicians may have performed on patients who have other health care coverage (e.g., commercial insurance, self-pay, or the VA). Billing variation and coding errors can also affect CMS's data. Therefore, the number of procedures that CMS reports for a clinician may be higher or lower than the actual number of colonoscopies a clinician performed during the reporting period. Lastly, only clinicians with a primary specialty of Gastroenterology, Internal Medicine, Family Practice, or General Practice (as reported to Medicare) are presented.

Source: Centers for Medicare & Medicaid Services (October 2, 2026 release).