Colonoscopy clinicians in Cherry Hill, New Jersey

CMS lists 38 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 Cherry Hill, New Jersey (details below).

Colonoscopy volume

Clinician	Colonoscopies billed	Percentile rank
Oleg Volchonok, MD	342	97%
Ahmed Shehata, MD	255	94%
Shivaprasad Marulendra, MD	240	93%
Kashyap Panganamamula, MD	212	90%
Beth Gardner, MD	174	85%
Gregory Seltzer, MD	162	82%
Daniel Brandt, MD	158	82%
Aarati Malliah, MD	155	81%
Andrew Dargan, MD	152	80%
C. Jonathan Foster, DO	144	79%
Andrew Zabolotsky, MD	142	78%
Charles Kistler, MD	132	75%
Drew Chiesa, DO	125	73%
Cuckoo Choudhary, MD	117	70%
James Kimbaris, MD	115	69%
Robert Shmuts, DO	113	69%
Christopher Adkins, MD	112	68%
Jamie Kasper, MD	111	68%
Nihit Shah, MD	106	66%
Neil Cohen, MD	103	65%
David Kastenberg, MD	100	64%
Katherine Gheysens, MD	93	61%
Louis Kishfy, MD	90	60%
Raman Battish, MD	60	45%
Punitha Shivaprasad, DO	60	45%
Fariha Ramay, MD	59	44%
Larry Borowsky, MD	55	42%
Priya Sehgal, MD	55	42%
Charles Snyder, MD	50	39%
Krysta Johns Keating, MD	49	38%
Nikhitha Mantri, MD	49	38%
Daniel Baik, MD	39	32%
Brian Copeland, DO	35	29%
Maarouf Hoteit, MD	28	25%
Katherine Duffey, MD	24	22%
Divya Ayyala-Somayajula, MD	21	20%
Simona Rossi, MD	12	14%
Gary Matusow, 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).