Colonoscopy clinicians in New Hyde Park, New York

CMS lists 63 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 New Hyde Park, New York (details below).

Colonoscopy volume

Clinician	Colonoscopies billed	Percentile rank
Rajiv Bansal, MD	308	96%
Lev Ginzburg, MD	305	96%
John Rizzo, MD	235	92%
Ian Storch, MD	228	92%
Raymond Diaz, MD	210	90%
Peter Stein, MD	173	85%
Frank Gerardi, MD	147	79%
Antonio Costantino, MD	146	79%
Christine Yu, MD	142	78%
Ronald Greenberg, MD	135	76%
Nilesh Mehta, MD	132	75%
Bradley Morganstern, MD	131	75%
Ashby Thomas, MD	126	73%
Alex Novogrudsky, MD	119	71%
Nathan Schulman, MD	116	70%
Bethany Devito, MD	113	69%
Isaiah Schuster, MD	110	68%
Meyer Blumstein, MD	109	67%
Keith Sultan, MD	107	67%
Juan Carlos Bucobo, MD	101	64%
Asadur Miah, DO	92	61%
Larisa Garkusha, MD	78	54%
Carylann Hadjiyane	77	54%
Bhawna Halwan, MD	75	52%
Alan Sandberg	75	52%
Katherine Freeman, MD	73	51%
Gregory Ackert, MD	72	51%
Faisal Sheikh, DO	72	51%
Kara Raphael, MD	66	48%
David Magier, MD	65	47%
Mary Cheung, MD	62	46%
Kamran Nia, MD	62	46%
Arthur Lowy, MD	60	45%
Linda Lee, MD	55	42%
Isabella Bergagnini, DO	52	40%
Aditya Sreenivasan, MD	52	40%
Nichol Martinez, MD	51	39%
Dasha Moza, MD	47	37%
David Schwarzbaum, MD	36	30%
Calvin Lee, MD	34	29%
Craig Smolow, MD	34	29%
Swathi Gopalakrishnan, MD	32	27%
Robert Gal, MD	31	27%
Robert Brunner, MD	29	25%
Stephen Esposito, MD	29	25%
Leah Lieber, MD	28	25%
Samrath Singh, MD	24	22%
Larry Miller, MD	22	21%
Jason Cohen, MD	19	19%
Jack Mlabasati, MD	12	14%
Chaim Anfang, MD	1-10	13% or below
Bilal Asif	1-10	13% or below
Maurice Cerulli, MD	1-10	13% or below
Frank Evanov, MD	1-10	13% or below
Arlene Garcia, MD	1-10	13% or below
Ahmed Gemei, MD	1-10	13% or below
Perry Gould, MD	1-10	13% or below
Alvin Htut, MD	1-10	13% or below
Anant Indaram, MD	1-10	13% or below
Harmit Kalia, DO	1-10	13% or below
Sandeep Nadella, MD	1-10	13% or below
Samip Shah, MD	1-10	13% or below
Howard Zimmerman, 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.

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).