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Colonoscopy clinicians in Charlotte, North Carolina

CMS lists 83 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 338 97%
Robert Schmitz, MD 268 95%
James Toussaint, MD 234 92%
Dennis Kokenes, MD 227 92%
John Roddey, MD 200 89%
Ronnie Cyzner, MD 199 89%
Sanjib Mohanty, MD 192 88%
Viral Patel, MD 192 88%
Scott Brotze, MD 190 87%
Michael Ryan, MD 180 86%
Stephen Stephenson, MD 176 85%
Jason Wilson, MD 175 85%
Siddharth Sura, MD 172 85%
Nicholas Anthony, MD 171 85%
Atul Khanna, MD 166 84%
Sagar Patel, MD 163 83%
Thadeus Dapash, DO 162 83%
Kent Holtzmuller, MD 160 82%
Stephen Melson, MD 160 82%
Karel Rybnicek, MD 160 82%
John Godino, MD 159 82%
Tarun Narang, MD 148 79%
Simon Prendiville, MD 144 78%
Olanrewaju Jimoh, MD 143 78%
Pouneh Nikrooz, MD 137 77%
Amit Aravapalli, MD 133 75%
Srinivas Cheruvu, MD 133 75%
Lee Sigmon, MD 131 75%
Joseph McNelis, MD 129 74%
Fred Fowler, MD 124 73%
David Olson, MD 124 73%
Garrett Greenan, MD 123 72%
Alex Kesler, MD 123 72%
Thomas Pacicco, MD 123 72%
Arundeep Kahlon, MD 122 72%
Jeffrey Zaidman, MD 122 72%
Milin Patel, MD 120 71%
Linsey Spence, DO 120 71%
Raj Dalsania, MD 119 71%
Joseph Zeidan, MD 118 71%
Eric Hilgenfeldt, MD 116 70%
Jason Lewis, MD 113 69%
Shreyans Doshi 108 67%
Ahmed Hamed, MD 108 67%
Victoria Rothwell, MD 105 66%
Brittany Seminara, MD 99 64%
David Sachar, MD 94 62%
Paris Charilaou, MD 89 59%
Shanti Rao, MD 87 59%
Rebecca Rawl, MD 85 58%
Maria Hatara, MD 84 57%
John Clements, MD 81 55%
James Gnecco, DO 81 55%
Oscar Brann, MD 78 54%
Ben Ogunwale, MD 78 54%
Shailendra Chauhan, MD 74 52%
Ciel Harris, MD 74 52%
Baruh Mulat, MD 71 50%
Jessica Sang, MD 70 50%
Eric Thompson, MD 69 49%
Nilesh Lodhia, MD 58 43%
Vinay Patel, MD 58 43%
Pavan Patel, MD 52 40%
Vikas Chitnavis, MD 44 34%
Maithili Chitnavis, MD 40 32%
Cyril Mazhuvanchery, DO 38 30%
Jennifer Wellington, DO 33 27%
Glen Portwood, MD 32 27%
Andrew Dries, MD 30 25%
Anwaar Khan, MD 27 23%
Sam Fulp, MD 22 20%
Baharak Moshiree, MD 21 20%
Steven Josephson, MD 17 17%
Steven Zacks, MD 11 13%
Andrew Delemos, MD 1-10 13% or below
Badih Elmunzer, MD 1-10 13% or below
Steven Hamstead, MD 1-10 13% or below
Tiv Johnson, MD 1-10 13% or below
Cynthia Lauer, MD 1-10 13% or below
Varun Moktan, MD 1-10 13% or below
Sean Rudnick 1-10 13% or below
Richard Sigmon, MD 1-10 13% or below
Philippe Zamor, 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.

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).