Colonoscopy clinicians in New Hyde Park, New York

CMS lists 69 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	273	95%
Lev Ginzburg, MD	271	95%
Ian Storch, MD	231	92%
John Rizzo, MD	230	92%
Raymond Diaz, MD	194	88%
Peter Stein, MD	158	82%
Frank Gerardi, MD	152	80%
Antonio Costantino, MD	149	80%
Ashby Thomas, MD	143	78%
Christine Yu, MD	141	78%
Bradley Morganstern, MD	140	77%
Ronald Greenberg, MD	137	77%
Alex Novogrudsky, MD	135	76%
Isaiah Schuster, MD	125	73%
Keith Sultan, MD	122	72%
Bethany Devito, MD	120	71%
Nilesh Mehta, MD	117	70%
Nathan Schulman, MD	114	69%
Juan Carlos Bucobo, MD	112	69%
Meyer Blumstein, MD	107	67%
Asadur Miah, DO	106	66%
Christopher Dimaio, MD	90	60%
Elliott Birnstein, MD	84	57%
Carylann Hadjiyane	84	57%
Larisa Garkusha, MD	83	57%
Alan Sandberg	83	57%
David Magier, MD	78	54%
Katherine Freeman, MD	75	52%
Faisal Sheikh, DO	73	51%
Kara Raphael, MD	66	47%
Michael Ashamalla, MD	64	46%
Mary Cheung, MD	64	46%
Aditya Sreenivasan, MD	60	44%
Gregory Ackert, MD	59	44%
Linda Lee, MD	57	42%
Arthur Lowy, MD	57	42%
Dasha Moza, MD	57	42%
Isabella Bergagnini, DO	51	39%
Joshua Berkowitz, MD	45	35%
Nichol Martinez, MD	45	35%
Diana Wee, MD	45	35%
Yonatan Ziv, MD	40	32%
Calvin Lee, MD	32	27%
David Schwarzbaum, MD	32	27%
Robert Brunner, MD	28	24%
Stephen Esposito, MD	28	24%
Leah Lieber, MD	28	24%
Craig Smolow, MD	28	24%
Samrath Singh, MD	27	23%
Robert Gal, MD	24	21%
Jason Cohen, MD	21	20%
Swathi Gopalakrishnan, MD	18	18%
Jack Mlabasati, MD	18	18%
Anant Indaram, MD	17	17%
Maurice Cerulli, MD	12	14%
Howard Zimmerman, MD	11	13%
Chaim Anfang, MD	1-10	13% or below
Bilal Asif	1-10	13% or below
Samantha Ehrlich, 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
Harmit Kalia, DO	1-10	13% or below
Larry Miller, MD	1-10	13% or below
Sandeep Nadella, MD	1-10	13% or below
Jennifer Onwochei, MD	1-10	13% or below
Sanjaya Satapathy, MD	1-10	13% or below
Samip Shah, 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.

Frank Evanov, 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).