GREELEY, Colo. (Jan. 13, 2026) – Banner Health strengthens patient access to minimally invasive and robotic-assisted surgery across Northern Colorado by adding three new general surgeons: Charles Marriott, MD; Nicole Blythe Moore Rieger, MD; and David Lundy, MD. With their arrival, patients will have expanded availability to abdominal and digestive surgery, along with a broader range of advanced, cutting-edge surgical options.
Dr. Marriott, practicing primarily out of Greeley, and Drs. Rieger and Lundy, practicing primarily in Fort Collins, each bring extensive experience in techniques that support faster recovery and less postoperative pain. Their addition helps shorten wait times and keeps high-quality surgical care close to home.
Bringing three surgeons with this level of training into one team is a step forward for the community in Northern Colorado. It improves access and allows patients to be treated close to home, using modern techniques that support better long-term outcomes.
About the surgeons
•Dr. Marriott focuses on general surgery, including benign biliary disease, hernia repair, gastroesophageal reflux disease and colon surgery. He completed his general surgery residency at UT Health San Antonio and earned his medical degree from George Washington University in Washington, D.C.
•Dr. Rieger brings fellowship training in advanced minimally invasive, foregut, hernia and bariatric surgery, along with significant experience in robotic-assisted surgery. Her residency at UC Davis Medical Center in Sacramento, Calif., and fellowship at Prisma Health in Greenville, S.C., included extensive work in robotic surgery, as well as multiple research publications and academic presentations.
•Dr. Lundy adds more than a decade of experience as an advanced laparoscopic and robotic surgeon, trauma surgeon and clinical instructor. He completed a fellowship in advanced laparoscopic and gastrointestinal surgery at St. Joseph Medical Center in Tacoma, Wash., and has served as a robotic surgery committee chairman and surgical proctor. His background in general surgery and complex minimally invasive procedures broadens the team’s ability to manage a wide range of surgical conditions.
Together, these experts strengthen Banner’s surgical services by expanding the range of cutting-edge options available to patients. Their training and diverse clinical backgrounds support a more comprehensive approach to surgical care across Northern Colorado, ensuring patients can receive timely treatment using advanced, evidence-based techniques.
For more information about surgery services at Banner Health, visit bannerhealth.com/services/surgery.
About Banner Health
Banner Health is one of the largest, secular nonprofit health care systems in the country. In addition to 33 hospitals, Banner also operates an academic medicine division, Banner – University Medicine, and Banner MD Anderson Cancer Center, a partnership with one of the world’s leading cancer programs, MD Anderson Cancer Center. Banner’s array of services includes a health insurance division, employed physician groups, outpatient surgery centers, urgent care locations, home care and hospice services, retail pharmacies, stand-alone imaging centers, physical therapy and rehabilitation, behavioral health services, a research division and a nursing registry. To make health care easier, 100% of Banner-employed doctors are available for virtual visits and patients may also reserve spots at Banner Urgent Care locations and can book appointments online with many Banner-employed doctors. Headquartered in Arizona, Banner Health also has locations in California, Colorado, Nebraska, Nevada and Wyoming. For more information, visit bannerhealth.com.