In pediatric gastroenterology, we see children of all ages with disorders of the gastrointestinal tract. This can include disorders of the esophagus (food tube), stomach, pancreas, liver, gall bladder, small intestine, large intestine, and rectum. I have a particular interest in caring for children with disorders of gut-brain interaction (DGBI), such as irritable bowel syndrome and functional dyspepsia. DGBI in children may be associated with chronic abdominal pain and meal-related symptoms. I also have a particular interest in caring for children with motility disorders. These include disorders such as esophageal achalasia, gastroparesis, intestinal pseudo-obstruction, and severe constipation. Pediatric gastroenterologists at Duke collaborate with several specialty colleagues in areas such as pediatric surgery, physical therapy, psychology, otolaryngology, and pulmonology to provide cutting-edge clinical care. We also educate pediatric gastroenterology trainees and lead academic innovation through quality initiatives and research to improve pediatric digestive health. Dr. Pedro is rated as an Elite provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Irritable Bowel Syndrome (IBS), Gastroparesis, Indigestion, Endoscopy, and Gallbladder Removal.

Douglas Drossman is a Gastroenterologist in Durham, North Carolina. Dr. Drossman is rated as an Elite provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Irritable Bowel Syndrome (IBS), Chronic Idiopathic Constipation (CIC), Indigestion, Biliary Dyskinesia, and Gallbladder Removal.

Martin Poleski is a Gastroenterologist in Raleigh, North Carolina. Dr. Poleski is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Crohn's Disease, Chronic Graft Versus Host Disease (cGvHD), Ulcerative Colitis, Endoscopy, and Colonoscopy. Dr. Poleski is currently accepting new patients.

I specialize in gastroenterology, specifically adult inflammatory bowel diseases including Crohn's disease and ulcerative colitis. I also see patients with a variety of digestive issues including fecal transplant for C. diff. colitis. I became a physician because I truly enjoy interacting with people and helping them feel better in whatever way I can. I like to emphasize good communication between providers and patients. It is important to work together with each patient to provide education and a personalized treatment plan that we both agree upon. Listening and understanding what each patient needs is vital to our success. Before working at Duke Health, I practiced as a gastroenterologist in the greater Boston area at the Lahey Clinic for 12 years. Outside of work I enjoy spending time with my family, reading fiction novels, and practicing yoga. Dr. Barto is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Crohn's Disease, Ulcerative Colitis, Pseudomembranous Colitis, Endoscopy, and Colonoscopy.

My area of interest is inflammatory bowel diseases (IBD) such as Crohn’s disease and ulcerative colitis. I also participate in clinical research to help evaluate new medications or products for use in IBD. These trials enable us to offer cutting-edge treatments for patients with Crohn’s and ulcerative colitis. I came to Duke as an intern almost 30 years ago and liked it so much I never left. I enjoy the relationships I have developed with my patients, some of whom I have treated for 15-20 years. I have watched many of them graduate from college, marry and have children of their own. I try to treat my patients as I would want a member of my family to be treated, and it is important to me that every patient understands that we are partners and need to work together as a team. When I am not at work, I enjoy going out to dinner or cooking with friends, working on my house, landscaping, and reading. Dr. Onken is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Crohn's Disease, Ulcerative Colitis, Hemorrhagic Proctocolitis, Endoscopy, and Colonoscopy.

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 Irritable Bowel Syndrome (IBS). 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 Irritable Bowel Syndrome (IBS). His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Swallowing Difficulty, Esophagitis, Abdominal Wall Surgery, and Endoscopy.

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 Irritable Bowel Syndrome (IBS). Her top areas of expertise are Angiodysplasia of the Colon, Watermelon Stomach, Gastrointestinal Bleeding, Colonoscopy, and Endoscopy.

I specialize in the screening and surveillance of gastrointestinal tract cancers, such as colon cancer in both average-risk and high-risk patients through endoscopy and colonoscopy. Additional training in hereditary cancer syndromes allows me to identify patients and families at risk for inheritable forms of gastrointestinal cancer, such as lynch syndrome and polyposis, in addition to providing personalized screening regimens for these individuals. In this specialty, I enjoy getting to know patients and their families to provide long-term care that is required for individuals at high risk for cancer. Dr. Kieber is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Familial Adenomatous Polyposis, Irritable Bowel Syndrome (IBS), Stomach Cancer, Trichohepatoenteric Syndrome, and Endoscopy.

I see patients with a variety of gastrointestinal disorders, including acid reflux, difficulty swallowing, constipation, diarrhea, abdominal pain, gastrointestinal bleeding, and abnormal imaging findings. I also perform a wide variety of procedures in my day-to-day practice, including diagnostic upper endoscopy, push enteroscopy and colonoscopy, and numerous therapeutic procedures. I have expertise in removing large pre-cancerous polyps through a technique called endoscopic mucosal resection (EMR), and I have a particular interest in using technology to improve procedural outcomes. My goal is to listen to my patients, help interpret the scientific literature and other sources of information, make diagnoses, and come up with an individualized treatment plan. My hope is that each patient leaves the office with a better understanding of what is going on and what we are doing to address it. Dr. Glissen is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Colorectal Cancer, Small Bowel Bacterial Overgrowth, Diarrhea, Colonoscopy, and Endoscopy.

\I was born and raised in New York, graduating from Duke University in 1989 and then the Yale University School of Medicine in 1993, where I served as class president and was named a Farr Scholar for ""\""superior performance… leadership, integrity and intellectual honesty in pursuit of medical knowledge at Yale.” Following residency and fellowship training in the Harvard system, I joined the gastroenterology faculty at Duke University Medical Center in 1999 and was honored in 2003 with the Paul G. Killenberg Fellow Teaching Award in Gastroenterology. I have authored numerous journal articles and book chapters in the fields of Gastroenterology and Hepatology, and was named one of “America’s Top Physicians” by the Consumers’ Research Council of America. I am an active member of the American Gastroenterology Association and the American College of Gastroenterology. I am married to Dr. Susan Spratt and am blessed with three wonderful children.""""https://www.dukehealth.org/sites/default/files/styles/doctor_profile/public/physician/david-tendler-md.jpg?itok=7W8ZyH4A Aetna | Ambetter | Blue Cross Blue Shield of NC | Cigna | Duke Group Plans | Experience Health | Gateway Health Alliance | Healthgram | Humana | MedCost | Medicare | NC Medicaid | TRICARE | United Healthcare active English no Duke Regional Hospital 3643 N Roxboro St Durham NC 27704 US 9194704000 9194338577 https://www.dukehealth.org/find-doctors-physicians/david-tendler-md https://corporate.dukehealth.org/sites/default/files/2025-06/Duke%20Health%20Approved%20Logos_1.png. Dr. Tendler is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Attenuated Familial Adenomatous Polyposis, Cronkhite-Canada Disease, Juvenile Polyposis Syndrome, and Colitis.

I enjoy partnering with patients on lifestyle modification and managing complex medical issues using both conventional and complementary approaches. I have a special interest in mind-body medicine. I started my medical career with seven years in private practice in Green Bay, Wisconsin, providing office-based, hospital, and nursing home care. In 2002, my family and I set off for the warmer climate of North Carolina in order to live in an area with a more ethnically diverse population and a longer growing season. I joined Durham Medical Center, a part of Duke Primary Care. In 2012, I helped create the Duke Integrative Primary Care Program. Dr. Blackford is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Sitosterolemia, Congenital Adrenal Hyperplasia (CAH), Congenital Lipoid Adrenal Hyperplasia, and High Cholesterol.

Joanne Wilson is a Gastroenterologist in Durham, North Carolina. Dr. Wilson is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Gas Bloat Syndrome, Crohn's Disease, Hemorrhagic Proctocolitis, Endoscopy, and Colonoscopy. Dr. Wilson is currently accepting new patients.

Mohan Chilukuri is a primary care provider, practicing in Family Medicine in Durham, North Carolina. Dr. Chilukuri is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Obesity, Obesity in Children, High Cholesterol, and Familial Hypertension. Dr. Chilukuri is currently accepting new patients.

Mazen Khusayem is a primary care provider, practicing in Internal Medicine in Durham, North Carolina. Dr. Khusayem is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Type 2 Diabetes (T2D), Non-Hodgkin Lymphoma, Chronic Obstructive Pulmonary Disease (COPD), and Nephrosclerosis. Dr. Khusayem is currently accepting new patients.

Feyisayo Adeyina is a primary care provider, practicing in Family Medicine in Durham, North Carolina. Dr. Adeyina is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Generalized Anxiety Disorder (GAD), High Cholesterol, Familial Hypopituitarism, and Obesity in Children. Dr. Adeyina is currently accepting new patients.

Eli Hammer is a primary care provider, practicing in Family Medicine in Durham, North Carolina. Dr. Hammer is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Sitosterolemia, High Cholesterol, Obesity, and Generalized Anxiety Disorder (GAD). Dr. Hammer is currently accepting new patients.

John Griffin is a primary care provider, practicing in Internal Medicine in Durham, North Carolina. Dr. Griffin is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, Hypertension, and Sitosterolemia.

Maurice Bienenfeld is a primary care provider, practicing in Geriatrics and Internal Medicine in Durham, North Carolina. Dr. Bienenfeld is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). His top areas of expertise are Hyperlipidemia Type 3, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, and Hypertension. Dr. Bienenfeld is currently accepting new patients.

Robin Di Bona is a primary care provider, practicing in Family Medicine and Geriatrics in Durham, North Carolina. Dr. Di Bona is rated as an Experienced provider by MediFind in the treatment of Irritable Bowel Syndrome (IBS). Her top areas of expertise are Vitamin D Deficiency, Low Sodium Level, Irritable Bowel Syndrome (IBS), and Familial Hypertension.