I am a general gastroenterologist, and I perform a wide range of procedures including colonoscopy and upper endoscopy. In the office, I see patients with small bowel, stomach, and esophageal and colonic digestive diseases. I have a particular interest in treating small bowel diseases, such as celiac and obscure gastrointestinal bleeding. I also perform procedures for specialized evaluation of the small bowel, such as capsule endoscopy and device-assisted enteroscopy, including double balloon enteroscopy. I enjoy getting to know my patients and practice a collaborative approach to care and medical decision-making. Dr. Vance is rated as an Experienced provider by MediFind in the treatment of Intestinal Cancer. Her top areas of expertise are Angiodysplasia of the Colon, Watermelon Stomach, Gastrointestinal Bleeding, Colonoscopy, and Endoscopy.

I manage patients with all forms of liver disease, including those with advanced liver disease who require liver transplantation. Additionally, I perform upper endoscopies and screening colonoscopies. I prioritize spending time with my patients to get to know them and their families, helping them optimize their health. It's essential for me to educate my patients about their illnesses so they feel empowered. Together, we create the best care plan based on the latest medical science, focusing on their goals and preferences. Dr. Floyd is rated as an Experienced provider by MediFind in the treatment of Intestinal Cancer. Her top areas of expertise are Esophageal Varices, Alcoholic Cirrhosis, Visceromegaly, and Hepatitis.

I am thrilled to return to Duke Health after my recent retirement to provide much-needed part-time endoscopy services and improve access to colon cancer screening and surveillance. I first came to Duke from Kansas in 1989 and loved the pine trees and people so much that I never went back. I was the first female gastroenterologist (and 20 weeks pregnant) when I started private practice in Raleigh in 1994. After nearly 30 years of uninterrupted service to my beloved patients in central North Carolina, I retired in January 2024. It was difficult to give up my passion for gastroenterology, colonoscopy, and patient interaction. I am eager to return with a schedule that allows me to travel more with my husband. I enjoy meeting patients and easing their anxiety through rapport and detailed explanations. A little humor and hand-holding also help. I love safely removing large polyps.I have two grown children; my daughter is a physical rehabilitation PA in RDU, and my son is a game quality control specialist in Austin, Texas. My passions include crosswords, concerts, Broadway shows, sporting events, and traveling. Dr. Hutzenbuhler is rated as an Experienced provider by MediFind in the treatment of Intestinal Cancer. Her top areas of expertise are Familial Adenomatous Polyposis, Diverticular Disease, Gastrointestinal Bleeding, Gastrectomy, and Endoscopy.

I have a clinical practice that focuses on the evaluation and management of patients with esophageal and swallowing disorders, including gastroesophageal reflux disease (GERD), eosinophilic esophagitis (EoE), Barrett’s esophagus and achalasia. Also, I have a strong academic and professional interest in health outcomes and quality of care. I am excited to be a part of Duke Health, where I can utilize revolutionary technologies like high resolution esophageal manometry and radiofrequency ablation to improve the care of my patients. Dr. Leiman is rated as an Experienced provider by MediFind in the treatment of Intestinal Cancer. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Swallowing Difficulty, Esophagitis, Abdominal Wall Surgery, and Endoscopy.

Paul Jowell is a Gastroenterologist in Durham, North Carolina. Dr. Jowell is rated as an Experienced provider by MediFind in the treatment of Intestinal Cancer. His top areas of expertise are Choledocholithiasis, Bile Duct Stricture, Pancreatic Cancer, Endoscopy, and Pancreatectomy. Dr. Jowell is currently accepting new patients.

Annapoorani Veerappan is a Gastroenterologist in Cary, North Carolina. Dr. Veerappan is rated as an Experienced provider by MediFind in the treatment of Intestinal Cancer. Her top areas of expertise are Gallstones, Juvenile Polyposis Syndrome, Attenuated Familial Adenomatous Polyposis, Endoscopy, and Colonoscopy. Dr. Veerappan is currently accepting new patients.

I enjoy meeting my patients, learning their story and helping them feel better. I pride myself on being a good father, husband, friend and physician. My favorite things to do on the weekend include playing with my sons, drinking wine with my wife, grilling out, working in my yard, eating seafood, watching football and going to church. Dr. Wilder is rated as an Experienced provider by MediFind in the treatment of Intestinal Cancer. His top areas of expertise are Hepatitis, Hepatitis C, Jaundice, Liver Transplant, and Endoscopy.

Lisa Gangarosa is a Gastroenterologist in Chapel Hill, North Carolina. Dr. Gangarosa is rated as an Experienced provider by MediFind in the treatment of Intestinal Cancer. Her top areas of expertise are Bile Duct Obstruction, Bile Duct Stricture, Cholestasis, Endoscopy, and Pancreatectomy. Dr. Gangarosa is currently accepting new patients.

Michael Dougherty is a Gastroenterologist in Chapel Hill, North Carolina. Dr. Dougherty is rated as an Experienced provider by MediFind in the treatment of Intestinal Cancer. His top areas of expertise are Eosinophilic Esophagitis, Esophagitis, Esophageal Perforation, Endoscopy, and Gastrectomy.

Poorvi Shah is a primary care provider, practicing in Pediatrics and Internal Medicine in Cary, North Carolina. Dr. Shah is rated as an Experienced provider by MediFind in the treatment of Intestinal Cancer. Her top areas of expertise are Delirium Tremens, Congenital Sucrase-Isomaltase Deficiency, Glucose Phosphate Isomerase Deficiency, and Glucose-Galactose Malabsorption Deficiency. Dr. Shah is currently accepting new patients.