Colonoscopy clinicians in Eagan, Minnesota

CMS lists 41 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 Eagan, Minnesota (details below).

Colonoscopy volume

Clinician	Colonoscopies billed	Percentile rank
Neil Phelan, MD	117	70%
Jeffrey Sanders, MD	73	51%
Stanley Go, MD	70	50%
Adam Kim, MD	63	46%
John Liveringhouse, MD	63	46%
Bertha Toriz, MD	63	46%
Wenfei Wang, MD	61	45%
Brett Henderson, DO	58	44%
Jimmy Levine, MD	57	43%
Kirk Wilson, MD	57	43%
Corbett Shelton, MD	55	42%
Ashish Tiwari, MD	54	41%
Arunkumar Muthusamy, MD	53	41%
Fadi Niyazi, MD	52	40%
Ibrahim Hanouneh, MD	50	39%
Jaime De La Fuente, MD	49	38%
Patrick Oreilly, MD	49	38%
Elizabeth Fallon, MD	47	37%
Erica Roberson, MD	47	37%
Catherine Skagen, MD	46	36%
Mark Virtue	46	36%
Anupama Nookala	45	36%
Ahmed Kandiel, MD	43	34%
Aaron Link, MD	41	33%
Zongyu Chen, MD	38	31%
Sajan Nagpal, MD	38	31%
Courtney Barancin, MD	37	31%
Nicholas Boetticher, MD	34	29%
Dahlia Awais, MD	32	27%
Peter Pico, MD	31	27%
Douglas Nelson, MD	20	19%
Joshua Colton, MD	19	19%
Jeffrey Rank, MD	16	17%
Anchal Sud, MD	13	15%
Sandra Denman, MD	12	14%
Naresh Gunaratnam, MD	12	14%
Denise Hunninghake, MD	12	14%
Sara Frankwick, MD	1-10	13% or below
Peter Ganzer, MD	1-10	13% or below
Karin Gilkison, MD	1-10	13% or below
James Hougas, 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).