Colonoscopy clinicians in Louisville, Kentucky

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 Louisville, Kentucky (details below).

Colonoscopy volume

Clinician	Colonoscopies billed	Percentile rank
Laszlo Makk, MD	199	89%
Jeffrey Tuvlin, MD	195	88%
Brian Beauerle, MD	176	85%
Michael Krease, DO	176	85%
Nanlong Liu, MD	168	84%
Brian Dobozi, MD	162	83%
Frederick Hardin, MD	158	82%
Lauren Briley, MD	151	80%
Jonathan Obert, MD	146	79%
Gerard Siciliano, MD	144	78%
Alan Cox, MD	142	78%
John Horlander, MD	138	77%
Michael Greenwell, MD	130	75%
Collin Henry, MD	104	66%
Endashaw Omer, MD	104	66%
Lucia Rivera Matos	96	63%
Ross Deppe, MD	91	60%
Thomas Coppola, DO	86	58%
Sunana Sohi, MD	86	58%
Alison Sharpe, DO	85	58%
John Brown, MD	80	55%
Anand Gupta, MD	79	54%
Jason Slate, MD	79	54%
Stephen Overstreet, MD	73	51%
Bhargab Dixit, MD	71	50%
Loretta Jophlin, MD	67	48%
Sarah Landes, MD	65	47%
Dylan Gerlach, DO	61	45%
Raja Kaikaus, MD	60	44%
Sanjay Jain, MD	59	44%
William Evans, MD	55	41%
Kristine Krueger, MD	55	41%
Abigail Stocker	52	40%
Prateek Mathur, MD	36	29%
Brandon Wuerth, MD	36	29%
Armando Bosch, MD	31	26%
Stephen McClave, MD	28	24%
Benjamin Rogers, MD	27	23%
Tracey Wolford	20	19%
Gerald Dryden, MD	15	16%
Luis Marsano, 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.

Ashutosh Barve, MD Last reported August 18, 2026
Matthew Cave, MD Last reported August 18, 2026
Michael Schoech, 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).