Colonoscopy clinicians in Urbana, Illinois

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 Urbana, Illinois (details below).

Colonoscopy volume

Clinician	Colonoscopies billed	Percentile rank
Vivek Mehta, MD	262	94%
Kamran Ayub, MD	257	94%
Donald Penn, MD	195	88%
Andrew Batey, MD	171	85%
Kenneth Camacho, MD	165	83%
Eliathamby Kuganeswaran, MD	155	81%
Karen Draper	149	80%
Vijay Adimoolam, MD	135	76%
Mack McCain, MD	132	75%
Melissa Martinez Mateo, MD	121	72%
Khondker Islam, MD	112	69%
Ahmed Khattab, MD	112	69%
Anshuman Chawla, MD	111	68%
Salman Ali Khan, MD	100	64%
Ahmad Al-Taee, MD	86	58%
Saqib Walayat, MD	77	53%
Avik Sarkar, MD	76	53%
Naser Khan, MD	75	52%
Sardar Shah-Khan, MD	70	50%
Dean Scavone, MD	69	49%
Ritu Sachdev, MD	64	46%
Rashad Wilkerson	61	45%
Kayin Jeffers, MD	55	41%
Haroon Shahid, MD	53	40%
Jonathan Kushner, MD	49	38%
Ishaan Vohra	43	34%
Michael Treanor, MD	42	33%
Yuliya Belopolsky, MD	36	29%
Jayaraj Salimath, DO	35	28%
Harris Siddiqui	30	25%
Shiraz Khaiser, MD	28	24%
Umesha Naragalu Boregowda, MD	28	24%
Thomas Deweert, MD	27	23%
Najib Nassani, MD	19	18%
Scott Wu, MD	18	18%
Andrew Rosenfeld, DO	17	17%
Ala' Abdel Jalil	16	16%
Muhammad Asghar, 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.

Patricia Henry 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).