Print Departments and specialties Mayo Clinic has one of the largest and most experienced practices in the United States, with campuses in Arizona, Florida and Minnesota. Staff skilled in dozens of specialties work together to ensure quality care and successful recovery. Departments with related expertise Gastroenterology and Hepatology Doctors who perform this procedure Edit search filters close Narrow your search By location Rochester, MN By last name There are no doctors whose last name begins with the letter A A Find a doctor whose last name begins with the letter B B Find a doctor whose last name begins with the letter C C There are no doctors whose last name begins with the letter D D Find a doctor whose last name begins with the letter E E There are no doctors whose last name begins with the letter F F There are no doctors whose last name begins with the letter G G There are no doctors whose last name begins with the letter H H There are no doctors whose last name begins with the letter I I Find a doctor whose last name begins with the letter J J Find a doctor whose last name begins with the letter K K active Find a doctor whose last name begins with the letter L L There are no doctors whose last name begins with the letter M M There are no doctors whose last name begins with the letter N N There are no doctors whose last name begins with the letter O O There are no doctors whose last name begins with the letter P P There are no doctors whose last name begins with the letter Q Q Find a doctor whose last name begins with the letter R R Find a doctor whose last name begins with the letter S S There are no doctors whose last name begins with the letter T T There are no doctors whose last name begins with the letter U U Find a doctor whose last name begins with the letter V V Find a doctor whose last name begins with the letter W W There are no doctors whose last name begins with the letter X X There are no doctors whose last name begins with the letter Y Y There are no doctors whose last name begins with the letter Z Z Reset all filters Search Tips Use quotes for phrases. Even if there are no auto-suggestions within the search field, hit "Search" anyway, as you may still get results. Displaying 1-1 out of 1 doctors available Last Name Initial: L Ryan J. Law, D.O. Gastroenterologist Rochester, MN Areas of focus: Colonoscopy, Endoscopic ultrasound, ERCP, Upper endoscopy, Endoscopic mucosal resection, Endoscopic procedure, Pancreat...ic cancer, Colon polyps, Pancreatitis, Cholecystitis, Pancreatic cyst, Bile duct stone, Bile duct stricture, Zenker's diverticulum Show more areas of focus for Ryan J. Law, D.O. By Mayo Clinic Staff Request an appointment About June 11, 2022 Print Show references Cameron AM, et al. Endoscopic treatment of Barrett's esophagus. In: Current Surgical Therapy. 13th ed. Elsevier; 2020. https://www.clinicalkey.com. Accessed Sept. 9, 2020. Kaltenbach T, et al. Endoscopic removal of colorectal lesions: Recommendations by the U.S. Multi-Society Task Force on Colorectal Cancer. Gastrointestinal Endoscopy. 2020; doi:10.1016/j.gie.2020.01.029. Feldman M, et al. Barrett esophagus. In: Sleisenger and Fordtran's Gastrointestinal and Liver Disease: Pathophysiology, Diagnosis, Management. 11th ed. Elsevier; 2021. https://www.clinicalkey.com. Accessed Sept. 10, 2020. Upper GI endoscopy. National Institute of Diabetes and Digestive and Kidney Diseases. https://www.niddk.nih.gov/health-information/diagnostic-tests/upper-gi-endoscopy. Accessed Sept. 10, 2020. Colonoscopy. American Gastroenterological Association. https://gastro.org/practice-guidance/gi-patient-center/topic/colonoscopy/. Accessed Sept. 8, 2020. Picco MF (expert opinion). Mayo Clinic. Oct. 6, 2020. Related Barrett's esophagus Colon polyps Video: Endoscopic mucosal resection Products & Services Sign up for Email: Get Your Free Resource – Coping with Cancer Endoscopic mucosal resectionAboutDoctors&Departments PRC-20312403 Patient Care & Health Information Tests & Procedures Endoscopic mucosal resection