Colonoscopy clinicians in Charlotte, North Carolina

CMS lists 77 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 Charlotte, North Carolina (details below).

Colonoscopy volume

Clinician	Colonoscopies billed	Percentile rank
David Smith, MD	321	97%
Robert Schmitz, MD	278	95%
Dennis Kokenes, MD	228	92%
James Toussaint, MD	217	90%
John Roddey, MD	203	89%
Scott Brotze, MD	201	89%
Michael Ryan, MD	201	89%
Sanjib Mohanty, MD	194	88%
Stephen Stephenson, MD	191	87%
Jason Wilson, MD	191	87%
Nicholas Anthony, MD	181	86%
Ronnie Cyzner, MD	180	86%
Thadeus Dapash, DO	168	84%
Karel Rybnicek, MD	159	82%
Stephen Melson, MD	156	81%
Sagar Patel, MD	156	81%
John Godino, MD	152	80%
Simon Prendiville, MD	147	79%
Siddharth Sura, MD	145	79%
Olanrewaju Jimoh, MD	143	78%
Amit Aravapalli, MD	139	77%
Lee Sigmon, MD	139	77%
Atul Khanna, MD	138	77%
Jeffrey Zaidman, MD	135	76%
Thomas Pacicco, MD	133	75%
Srinivas Cheruvu, MD	131	75%
Joseph McNelis, MD	129	74%
Linsey Spence, DO	128	74%
Joseph Zeidan, MD	123	72%
Tarun Narang, MD	120	71%
David Olson, MD	118	70%
Arundeep Kahlon, MD	117	70%
Milin Patel, MD	116	70%
Eric Hilgenfeldt, MD	114	69%
Jason Lewis, MD	112	68%
Raj Dalsania, MD	108	67%
Shreyans Doshi	108	67%
Pouneh Nikrooz, MD	108	67%
Oscar Brann, MD	98	63%
Brittany Seminara, MD	98	63%
David Sachar, MD	97	63%
Victoria Rothwell, MD	93	61%
John Clements, MD	91	60%
Shanti Rao, MD	91	60%
Paris Charilaou, MD	87	58%
Rebecca Rawl, MD	79	54%
Ben Ogunwale, MD	77	54%
Maria Hatara, MD	75	52%
Eric Thompson, MD	75	52%
Shailendra Chauhan, MD	73	51%
Vinay Patel, MD	69	49%
Nilesh Lodhia, MD	65	47%
Jessica Sang, MD	64	47%
Vikas Chitnavis, MD	62	46%
Baruh Mulat, MD	62	46%
Ciel Harris, MD	59	44%
James Gnecco, DO	52	40%
Pavan Patel, MD	50	39%
Steven Josephson, MD	46	36%
Andrew Dries, MD	41	33%
Jennifer Wellington, DO	39	32%
Maithili Chitnavis, MD	36	30%
Cyril Mazhuvanchery, DO	31	27%
Glen Portwood, MD	28	25%
Sam Fulp, MD	25	23%
Baharak Moshiree, MD	21	20%
Tiv Johnson, MD	14	15%
Steven Zacks, MD	11	13%
Andrew Delemos, MD	1-10	13% or below
Badih Elmunzer, MD	1-10	13% or below
Neveen Habashi, MD	1-10	13% or below
Steven Hamstead, MD	1-10	13% or below
Varun Moktan, MD	1-10	13% or below
Sean Rudnick	1-10	13% or below
Mark Russo, MD	1-10	13% or below
Paul Schmeltzer, MD	1-10	13% or below
Richard Sigmon, 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).