Colonoscopy clinicians in Allentown, Pennsylvania

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 Allentown, Pennsylvania (details below).

Colonoscopy volume

Clinician	Colonoscopies billed	Percentile rank
Amrit Narula, MD	380	98%
Chatargy Kaza, MD	237	92%
Aaron Mendelson, MD	155	81%
Brian Kim, DO	148	79%
Travis Magdaleno, DO	123	72%
Paola Blanco, MD	118	71%
Shashin Shah, MD	113	69%
Michael Engels, MD	106	66%
Ronald Bross, MD	102	65%
Ayaz Matin, MD	102	65%
Tanveer Imam, MD	100	64%
Eric Nellis, MD	99	64%
Sean Lacey, MD	98	63%
Allison Baragona, MD	95	62%
Amy Javia, MD	92	61%
Hiral Shah, MD	90	60%
Mazen Tolaymat, MD	90	60%
Zachary Zator, MD	89	59%
Jonathan Ohm, MD	86	58%
Vaishali Patel, MD	85	58%
Anastasia Shnitser, MD	85	58%
Matthew Sullivan, DO	80	55%
Shannon Tosounian, DO	80	55%
Berhanu Geme, MD	78	54%
Kimberly Chaput, DO	72	51%
Patrick Hickey, DO	72	51%
Bonnie Patek, DO	70	50%
Anthony Auteri, MD	56	42%
Bo Hyung Yoon, MD	54	41%
Adam Peyton, DO	53	40%
Cristina Angelo, MD	51	39%
Jacob Pickle, MD	51	39%
Maureen Linganna, MD	43	34%
Zheng Lin, MD	39	31%
She-Yan Wong, MD	38	30%
Shahid Malik, MD	34	28%
Jonathan Nahas, MD	31	26%
Maarouf Hoteit, MD	27	23%
Ethan Weinberg, MD	17	17%
Glenn Freed, DO	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.

Ragarupa Kotala, 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).