Dr. Gregory Michael Knoll, 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.

• Chatham Hospital Inc Hospital · Siler City, NC
• Unc Hospitals Hospital · Chapel Hill, NC · listed as UNC Hospital

Colleagues at University of North Carolina at Chapel Hill

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2079 clinicians in the practice; 12 are shown here.

• Noor Dasouki Abualnadi, MD Obstetrics & Gynecology Physician · Ann Arbor, MI
• Sasha Deutsch-Link, MD Transplant Hepatology Physician · Chapel Hill, NC
• Bria Dunn Physical Therapist · Charlotte, NC
• Erika Beals Gagnon, AUD Audiologist · Durham, NC
• Sandra Rose Goodeve, CRNA Certified Registered Nurse Anesthetist · Chapel Hill, NC
• Dr. John Michael Kepley, DO General Practice Physician · Rocky Mount, NC
• Leslie Donnelly Lorbacher, AGPCNP Adult Health Nurse Practitioner · Chapel Hill, NC
• Dr. Anthony James Mazzella, MD Hospitalist Physician · Chapel Hill, NC
• Dr. Luke Daniel McNulty, MD Student in an Organized Health Care Education/Training Program · Chapel Hill, NC
• Stuart Leighton Mitchell, MD Orthopaedic Surgery Physician · Chapel Hill, NC
• Ashley Marie Morelen, CRNA Registered Nurse · Raleigh, NC
• Emily M Pisetsky, PHD Psychologist · Minneapolis, MN

Other providers in Cary

• Dr. Brian Stuart Coan, MD

  Individual Plastic and Reconstructive Surgery Physician · NPI 1255598736

  2001 Weston Pkwy, Cary, NC 27513-5512 · (919) 484-4484

• Dr. Cynthia Marie Gregg, MD

  Individual Plastic and Reconstructive Surgery Physician · NPI 1740253731

  3550 NW Cary Pkwy Ste 100, Cary, NC 27513-7409 · (919) 297-0097

• Dr. Kimberly Sue Jones, MD

  Individual Plastic and Reconstructive Surgery Physician · NPI 1043621972

  2395 Kildaire Farm Rd, Cary, NC 27518-6689 · (919) 342-9844

• Katelyn A Whitley, PA-C

  Individual Plastic and Reconstructive Surgery Physician · NPI 1356135107

  210 Ashville Ave, Cary, NC 27518-6600 · (919) 350-7546