Colonoscopy clinicians in Greenville, South Carolina

CMS lists 45 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 Greenville, South Carolina (details below).

Colonoscopy volume

Clinician	Colonoscopies billed	Percentile rank
Einar Lurix, MD	511	99%
Seid Mirmiran-Yazdy, MD	400	98%
Joshua Cohen, DO	307	96%
Ross Sage	204	89%
Joseph Lebel, MD	176	85%
Lawrence Hartley, MD	168	84%
Christopher Fyock, MD	164	83%
Joseph Beets, MD	153	81%
Ritu Saha, MD	153	81%
David Gaines, MD	147	79%
Alexander Kovalic, MD	141	78%
Stephen Brackbill, MD	136	76%
Anthony Horton, MD	135	76%
Jared Geist, MD	134	76%
Paul Mazanec, MD	134	76%
Furkan Ertem, MD	133	75%
Preston Jones, MD	131	75%
Peter Naas, MD	129	74%
Hiren Vallabh, MD	118	71%
David Gulley, MD	117	70%
Olga Vitorsky, DO	115	70%
Matthew Barnes, MD	113	69%
David Palma	112	69%
Madhusudhan Sunkavalli, MD	111	68%
Andre Eaddy, MD	107	67%
Joseph Baber, DO	106	66%
Luis Lizardo Sanchez, MD	97	63%
Anjani Jammula, MD	93	61%
Ayub Merchant	93	61%
Kimberly Robelin, MD	89	59%
Diego Lim, MD	84	57%
Christina Bauer, MD	80	55%
Michael Busch, DO	70	50%
Rehan Khan, MD	69	49%
Monia Werlang, MD	66	47%
Weston Bettner, MD	64	46%
Graziella Rangel Paniz	56	42%
Kalpit Devani, MD	49	38%
Katelyn Madigan	45	35%
Veeral Oza, MD	34	28%
Juan Corral Hurtado, MD	33	27%
Abbinaya Elangovan	22	20%
Murat Akyildiz	1-10	13% or below
Lisa Forrester	1-10	13% or below
Linda Redderson, 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.

Paul Schmeltzer, MD Last reported August 18, 2026
Claude Yarborough, 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).