Colonoscopy clinicians in Mineola, New York

CMS lists 39 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 Mineola, New York (details below).

Colonoscopy volume

Clinician	Colonoscopies billed	Percentile rank
Chaim Ross, MD	312	96%
Rajiv Bansal, MD	308	96%
Lev Ginzburg, MD	305	96%
John Rizzo, MD	235	92%
Felice Mirsky, MD	226	91%
Rani Modayil, MD	204	89%
Zinal Patel, MD	188	87%
Charles Wideska, MD	175	85%
Deepak Desai, MD	140	77%
Brian Markowitz, MD	136	76%
Bradley Morganstern, MD	131	75%
Alex Novogrudsky, MD	119	71%
Michael Adler, MD	101	64%
Michael Kantrowitz, DO	91	60%
Amar Manvar, MD	80	55%
Pranay Srivastava, MD	78	54%
Carylann Hadjiyane	77	54%
Prakash Viswanathan, MD	77	54%
Bhawna Halwan, MD	75	52%
Galen Leung, MD	75	52%
Andy Fan, MD	74	52%
Preeti Mehta, MD	74	52%
David Magier, MD	65	47%
Hina Zaidi, MD	57	43%
Dasha Moza, MD	47	37%
Krishna Gurram, MD	42	34%
Mitchell Locke, MD	39	32%
Mythri Subramaniam, MD	30	26%
Leah Lieber, MD	28	25%
Anthony Massimillo, MD	28	25%
Leslie Klyachman	21	20%
Joseph Tromba, MD	21	20%
Jason Cohen, MD	19	19%
Ravi Jariwala, MD	19	19%
Shirley Johnson Hall, MD	11	13%
Bilal Asif	1-10	13% or below
David Bernstein, MD	1-10	13% or below
Christine Chen, DO	1-10	13% or below
Jessica Widmer, DO	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.

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 (August 18, 2026 release).