Colonoscopy clinicians in Voorhees, New Jersey

CMS lists 43 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 Voorhees, New Jersey (details below).

Colonoscopy volume

Clinician	Colonoscopies billed	Percentile rank
Michael Dimarino, MD	235	92%
Robert Coben, MD	224	91%
Colin Smith, MD	202	89%
Auguste Turnier, MD	163	83%
Christopher Morrison, MD	148	79%
Gregory Seltzer, MD	144	78%
Brenda Velasco, MD	140	77%
Daniel Brandt, MD	136	76%
Andrew Zabolotsky, MD	135	76%
John Kolnik, DO	132	75%
Michael Farber, MD	130	75%
Yize Wang, MD	130	75%
James Kimbaris, MD	126	73%
Leo Katz, MD	118	71%
Brian Blair, DO	112	69%
Jamie Kasper, MD	109	67%
Lucy Joo, DO	106	66%
Elizabeth Egan, MD	105	66%
Joseph Wooten, MD	86	58%
Nishi Pandey, DO	81	55%
David Kastenberg, MD	78	54%
Tusharsindhu Chauhan, MD	76	53%
Katherine Gheysens, MD	76	53%
Melissa Diener, MD	71	50%
Sanket Patel, DO	68	49%
Theresa Disandro, DO	67	48%
Michael Goldstein, MD	64	46%
Rachel Frank, MD	58	43%
Krysta Johns Keating, MD	58	43%
Charles Snyder, MD	56	42%
Raman Battish, MD	53	40%
Alan Mushnick, MD	51	39%
Punitha Shivaprasad, DO	49	38%
Daniel Baik, MD	47	36%
Sumedha Singh, MD	39	31%
Brian Copeland, DO	34	28%
Jonathan Fenkel, MD	31	26%
Zubair Malik, MD	24	21%
Dina Halegoua De Marzio, MD	22	20%
Yecheskel Schneider, MD	21	20%
Danielle Tholey, MD	15	16%
Pallavi Jadhav, MD	1-10	13% or below
Bindiya 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.

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).