Dr. Marcum G Gillis, MD

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

• Novant Health Forsyth Medical Center Hospital · Winston-Salem, NC · listed as Novant Health Thomasville Medical Center, LLC

Colleagues at Digestive Health Specialists PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 27 clinicians in the practice; 12 are shown here.

• Murat Kemal Akdamar, MD Gastroenterology Physician · Winston Salem, NC
• Tilak Raj Baba Hospitalist Physician · Winston Salem, NC
• Mr. Gregory Allen Barton, PA-C Medical Physician Assistant · Winston Salem, NC
• Marissa Nicole Caperilla, PA Physician Assistant · Winston Salem, NC
• Dr. Jeremy Thomas Gillespie, MD Internal Medicine Physician · Winston Salem, NC
• Ingrid Gonzalez, MD Gastroenterology Physician · Winston Salem, NC
• Dr. Charles Peter Katopes III, MD Gastroenterology Physician · Winston Salem, NC
• Dr. Michael George Noujaim, MD Internal Medicine Physician · Winston Salem, NC
• Austin Clay Pope, PA Physician Assistant · Winston Salem, NC
• Dr. Apsara Prasad, MD Gastroenterology Physician · Winston Salem, NC
• Trevor Spurling, PA Physician Assistant · Winston Salem, NC
• Dr. Jerald Luke Winter, MD Anatomic Pathology & Clinical Pathology Physician · Winston Salem, NC

Other providers in Winston Salem

• Gastroenterology Associates of the Piedmont, PA

  Organization Gastroenterology Physician · NPI 1336585561

  1901 S Hawthorne Rd Ste 310, Winston Salem, NC 27103 · (336) 448-2427

• Gastroenterology Associates of the Piedmont, PA

  Organization Gastroenterology Physician · NPI 1679687586

  875 Bethesda Rd, Winston Salem, NC 27103 · (336) 448-2427

• James Samuel Gibbs, MD

  Individual Gastroenterology Physician · NPI 1124132022

  1830 S Hawthorne Rd, Winston Salem, NC 27103-4047 · (336) 448-2427

• John Hugh Gilliam III, MD

  Individual Gastroenterology Physician · NPI 1992780126

  Medical Center Blvd, Winston Salem, NC 27157-0001 · (336) 716-2255

• Ingrid Gonzalez, MD

  Individual Gastroenterology Physician · NPI 1205034147

  195 Kimel Park Dr Ste 200, Winston Salem, NC 27103-6967 · (336) 768-6211

• Shelly Gurwara, MD

  Individual Gastroenterology Physician · NPI 1841610300

  Medical Ctr Blvd, Winston Salem, NC 27157-2358 · (336) 713-7306

• Dr. Sean M Harris, MD

  Individual Gastroenterology Physician · NPI 1558328492

  1830 S Hawthorne Rd Ste 310, Winston Salem, NC 27103-4014 · (336) 448-2427

• Dr. Robert John Holmes, MD

  Individual Gastroenterology Physician · NPI 1306803234

  1901 S Hawthorne Rd Ste 310, Winston Salem, NC 27103-3921 · (336) 448-2427