Colonoscopy clinicians in Cherry Hill, New Jersey

CMS lists 40 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	268	95%
Ahmed Shehata, MD	250	94%
Shivaprasad Marulendra, MD	232	92%
Beth Gardner, MD	206	89%
Kashyap Panganamamula, MD	181	86%
Andrew Dargan, MD	157	82%
Drew Chiesa, DO	155	81%
Aarati Malliah, MD	145	79%
Gregory Seltzer, MD	144	78%
Nihit Shah, MD	138	77%
Charles Kistler, MD	137	77%
Daniel Brandt, MD	136	76%
Andrew Zabolotsky, MD	135	76%
C. Jonathan Foster, DO	132	75%
Cuckoo Choudhary, MD	129	74%
James Kimbaris, MD	126	73%
Robert Shmuts, DO	114	69%
Christopher Adkins, MD	112	69%
Brian Blair, DO	112	69%
Jamie Kasper, MD	109	67%
Louis Kishfy, MD	86	58%
David Kastenberg, MD	78	54%
Katherine Gheysens, MD	76	53%
Nikhitha Mantri, MD	70	50%
Neil Cohen, MD	64	46%
Krysta Johns Keating, MD	58	43%
Fariha Ramay, MD	57	42%
Charles Snyder, MD	56	42%
Raman Battish, MD	53	40%
Larry Borowsky, MD	49	38%
Katherine Duffey, MD	49	38%
Punitha Shivaprasad, DO	49	38%
Daniel Baik, MD	47	36%
Brian Copeland, DO	34	28%
Priya Sehgal, MD	34	28%
Maarouf Hoteit, MD	27	23%
Divya Ayyala-Somayajula, MD	19	18%
Simona Rossi, MD	17	17%
Kenneth Rothstein, MD	1-10	13% or below
Adam Weaver, 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.

Gary Matusow, 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).