\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 Advanced provider by MediFind in the treatment of Juvenile Polyposis Syndrome. His top areas of expertise are Attenuated Familial Adenomatous Polyposis, Cronkhite-Canada Disease, Juvenile Polyposis Syndrome, and Colitis.

I treat patients with benign and cancerous conditions of the bile duct and pancreas. I specialize in endoscopic retrograde cholangiopancreatography (ERCP), endoscopic ultrasound, endoscopic stenting and the removal of large, complex colon polyps. I enjoy the challenge and satisfaction of performing these procedures. However, the most gratifying parts of my work are interacting with patients, relating to them on a personal level and providing compassionate care. Dr. Burbridge is rated as an Experienced provider by MediFind in the treatment of Juvenile Polyposis Syndrome. Her top areas of expertise are Choledocholithiasis, Bile Duct Stricture, Cholestasis, Endoscopy, and Gastrostomy.

I specialize in performing advanced luminal endoscopic procedures, such as peroral endoscopic myotomy (POEM) for the treatment of certain disorders of the esophagus and stomach, endoscopic submucosal dissection (ESD), mucosal resection (EMR), full thickness resection (EFTR), and endoscopic suturing for the removal of lesions from the GI tract, as well as transoral incisionless fundoplication (TIF) for the treatment of gastroesophageal reflux (GERD). It is important to me that my patients understand that they are part of the team when it comes to taking care of their gastrointestinal conditions. I will help them make the best decisions, but will not push them to do anything with which they are uncomfortable. Therefore, it is also very important to me that my patients feel well-educated about their gastrointestinal condition so that they can help make the decisions that are best for them. I am originally from Apex, North Carolina, and after many years away, I am excited to be back in the Triangle taking care of the community that raised me. Dr. Dufault is rated as an Experienced provider by MediFind in the treatment of Juvenile Polyposis Syndrome. His top areas of expertise are Achalasia, Familial Adenomatous Polyposis, Angiodysplasia of the Colon, Endoscopy, and Colonoscopy.

I care for a wide variety of general gastrointestinal disorders and routinely performs upper endoscopy and colonoscopy. Additionally, I have a specific interest in small bowel diseases, such as celiac sprue and gastrointestinal bleeding, and regularly perform double balloon enteroscopy and video capsule endoscopy to diagnosis and manage these problems. Dr. Wild is rated as an Experienced provider by MediFind in the treatment of Juvenile Polyposis Syndrome. His top areas of expertise are Angiodysplasia of the Colon, Peutz-Jeghers Syndrome, Watermelon Stomach, Endoscopy, and Colonoscopy.

After completing a general gastroenterology fellowship as well as an additional advanced endoscopy fellowship at Duke, I joined the talented faculty. This opportunity allows me to continue my clinical focus on caring for patients with complicated pancreas and biliary tree disorders. Outside of the hospital I enjoy spending time with my wife and young daughter. Dr. Spaete is rated as an Experienced provider by MediFind in the treatment of Juvenile Polyposis Syndrome. His top areas of expertise are Chronic Pancreatitis, Hereditary Pancreatitis, Acute Pancreatitis, Endoscopy, and Gastrectomy.

My specialty focuses on diseases of the pancreas, diseases of the bile duct, as well as therapeutic endoscopy procedures for complicated GI problems that may not be provided in the community such as treatment of malignant obstruction, Zenker’s diverticula, fistulae or endoscopic removal of premalignant or malign lesions of the GI tract. I’ve been at Duke for over 25 years, and the thing that has kept me here all these years has been the opportunity to provide care for patients that need these advanced services and the wonderful people I work with. I very much enjoy working with colleagues who want to provide the best possible care for our patients and the opportunity to train the future leaders in gastroenterology. We have a great facility, great technology, but most importantly my colleagues and the people I work with share the same vision and values. You take this for granted until you go somewhere else. I wouldn’t be able to provide what I hope is excellent care without the assistance of great nurses, physicians and staff at Duke. I hope you will have this same experience when you come to Duke University Health System. Dr. Stanley is rated as an Experienced provider by MediFind in the treatment of Juvenile Polyposis Syndrome. His top areas of expertise are Bile Duct Stricture, Cholestasis, Bile Duct Obstruction, Endoscopy, and Gastrectomy.

I am a gastroenterologist and gastrointestinal cancer geneticist. I diagnose and treat a range of gastrointestinal conditions with endoscopy and colonoscopy. I also perform colonoscopy for colorectal cancer screening. As a member of the Hereditary Cancer Clinic, I am interested in helping patients assess their risk for gastrointestinal cancers. I work closely with genetic counselors to review family history of cancer, detailed health history, environmental exposures, and genetic testing results. I then integrate these findings to provide a personalized cancer risk assessment for each patient. My goal is to guide patients through treatment and screening programs to reduce their risk of cancer. Dr. Roper is rated as an Experienced provider by MediFind in the treatment of Juvenile Polyposis Syndrome. His top areas of expertise are Colorectal Cancer, Crohn's Disease, Obesity, Colonoscopy, and Endoscopy.

I specialize in the surgical management of benign and malignant diseases of the gastrointestinal tract (GI) tract. Specifically trained in laparoscopic resection of inflammatory bowel disease and colorectal cancer, I perform the full range of colorectal operations, including reconstructive operations, such as ileal pouches. My clinical, research, and administrative efforts are all focused on implementing perioperative care practices that ensure best patient outcomes. Bridging specialties to best care for GI surgery patients, I particularly enjoy combined cases. For instance, I regularly operate with the pediatric surgery team on younger patients with IBD or pelvic cancer. Until my exposure to surgery in medical school, I thought I wanted the patient-doctor relationship well-known to primary care. With experience, however, I realized this relationship was possible in the practice of surgery. Colorectal surgery allows me the privilege of long-term relationships with a great variety of patients; close relationships with my colleagues; and administrative positions that promote the best care. Dr. Marosky is rated as an Experienced provider by MediFind in the treatment of Juvenile Polyposis Syndrome. Her top areas of expertise are Colorectal Cancer, Familial Colorectal Cancer, Crohn's Disease, Hernia Surgery, and Hemorrhoidectomy.

Paul Cassis is a Gastroenterologist in Durham, North Carolina. Dr. Cassis has been practicing medicine for over 11 years and is rated as an Experienced provider by MediFind in the treatment of Juvenile Polyposis Syndrome. His top areas of expertise are Lymphocytic Colitis, Colitis, Attenuated Familial Adenomatous Polyposis, and Juvenile Polyposis Syndrome.

\Internship is the first year after medical school. That year, I was a real doctor, but still was supervised by the attending staff. My first attending had an international reputation but believed ferociously that the art of medicine was grounded in what he called ""\""the story.""\"" Most critically, he taught me, you had to know the main character of that story -- your patient. Over years of practice, I've provided care for death row prisoners, Fortune 500 CEOs, and NFL players. Each story is unique, as should be my approach. Daily, I work on capturing the details, and I try to teach our trainees to do the same.""""https://www.dukehealth.org/sites/default/files/styles/doctor_profile/public/physician/john-t-geneczko-jr-md.JPG?itok=DexM3Iv7 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 Davis Ambulatory Surgical Center 120 E Carver St Durham NC 27704 US 9194701000 9194701053 https://www.dukehealth.org/find-doctors-physicians/john-t-geneczko-jr-md https://corporate.dukehealth.org/sites/default/files/2025-06/Duke%20Health%20Approved%20Logos_1.png Duke Endoscopy Clinic - Clinic 2H 40 Duke Medicine Cir Durham NC 27710.0 US 9196849522.0 Duke Gastroenterology North Durham 4220 N Roxboro St Durham NC 27704.0 US 9193853880.0. Dr. Geneczko is rated as an Experienced provider by MediFind in the treatment of Juvenile Polyposis Syndrome. His top areas of expertise are Gastrointestinal Bleeding, Cronkhite-Canada Disease, Juvenile Polyposis Syndrome, Endoscopy, and Gastrectomy.

I am a colorectal surgeon, which means that I am a surgeon of the abdomen. I treat patients with diseases related to the gastrointestinal tract, specifically with diverticulitis, inflammatory bowel disease, colitis, Crohn’s disease, ulcerative colitis, and also GI cancers, such as colon cancer, rectal cancer, and anal cancer. I try to engage with the patient as much as I can. I use as many visual things as possible, pictures or diagrams, to help explain conditions or treatments a little easier. The benefit of coming to Duke is that we have multiple specialties, so if a diagnosis is unclear to me, I have a team of colleagues who help me and patients can be comfortable knowing a team of specialists can help find a solution. Dr. Lan is rated as an Experienced provider by MediFind in the treatment of Juvenile Polyposis Syndrome. His top areas of expertise are Proctitis, Familial Colorectal Cancer, Rectal Prolapse, Bladder Reconstruction, and Ureteroscopy.

I’m a native North Carolinian and second generation gastroenterologist. I’m a general gastroenterologist, so I treat diseases of the gastrointestinal tract, liver, and pancreas. This includes heart burn, constipation, diarrhea, inflammatory bowel disease, pancreatitis, cirrhosis, and numerous other conditions. I also perform routine endoscopic procedures, such as upper endoscopy and colonoscopy. I love gastroenterology as a specialty because it requires a team effort from nurses, techs, and patients to provide quality care. Being from North Carolina, I treat my patients as family and encourage a dialogue with my patients as medicine is a balance of science and art. Every individual is different. When not working, I enjoy reading and hunting, but my main focus outside of work is my wife and two young sons. Dr. Trevor is rated as an Experienced provider by MediFind in the treatment of Juvenile Polyposis Syndrome. His top areas of expertise are Nonalcoholic Steatohepatitis (NASH), Non-Alcoholic Fatty Liver Disease, Colitis, Collagenous Colitis, and Colonoscopy.

I am a colorectal surgeon and researcher who has been at Duke for about 25 years. I see patients who have issues with the small bowel, colon, rectum and anus. These issues include benign tumors, cancers, hemorrhoids and fistulas. The best part of my job is operating. The operating room is a special place, where we have been able to put a number of processes in place so things run smoothly and we can give patients the best chance at a good outcome. The fact that you can take a condition, operate and potentially cure a patient is fascinating to me. As a faculty member, I also enjoy when I have the chance to teach residents during the operation. When I am not at work, I enjoy fishing, hiking and playing tennis with my children. Dr. Mantyh is rated as an Experienced provider by MediFind in the treatment of Juvenile Polyposis Syndrome. His top areas of expertise are Colorectal Cancer, Genital Warts, Familial Colorectal Cancer, Colostomy, and Ileostomy.

I care for patients seeking long-term, sustainable weight loss through advanced surgical options. As a bariatric and minimally invasive surgeon, I specialize in procedures such as sleeve gastrectomy, gastric bypass, and revision surgeries. I also address related conditions like hernias, reflux, and metabolic disease. I’m passionate about supporting patients not just during surgery, but throughout their journey—before, during, and long after the procedure. I chose this field because I’ve seen how life-changing these interventions can be, both physically and emotionally. I take time to understand each patient’s goals, challenges, and lifestyle, and I work with them to build a path forward that’s realistic and durable. Outside of work, I enjoy travel, music, and time with friends, which helps me stay grounded and energized for the work I do. Dr. Meireles is rated as an Experienced provider by MediFind in the treatment of Juvenile Polyposis Syndrome. His top areas of expertise are Achalasia, Obesity, Hernia, Sleeve Gastrectomy, and Gastrectomy.

Kombiz Klein is a primary care provider, practicing in Internal Medicine in Durham, North Carolina. Dr. Klein is rated as an Experienced provider by MediFind in the treatment of Juvenile Polyposis Syndrome. His top areas of expertise are High Cholesterol, Erectile Dysfunction (ED), Persistent Genital Arousal Disorder, and Osteomyelitis in Children. Dr. Klein 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 Juvenile Polyposis Syndrome. 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 Juvenile Polyposis Syndrome. His top areas of expertise are Hepatitis, Hepatitis C, Jaundice, Liver Transplant, and Endoscopy.

I have practiced at Duke since 1997. I enjoy my patients and specialize in providing general medical care. I am comfortable with helping provide care for a wide variety of people and medical conditions. Dr. Meredith is rated as an Experienced provider by MediFind in the treatment of Juvenile Polyposis Syndrome. His top areas of expertise are Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, Hypertension, and Maturity Onset Diabetes of the Young.

My practice centers on the care of adult patients with digestive disorders. My particular interests include colorectal cancer screening and prevention, treatment of colon polyps, gastroesophageal reflux, and Barrett's esophagus.Procedures I perform include upper endoscopy, colonoscopy, flexible sigmoidoscopy, and small bowel enteroscopy. Dr. Feiler is rated as an Experienced provider by MediFind in the treatment of Juvenile Polyposis Syndrome. His top areas of expertise are Juvenile Polyposis Syndrome, Cronkhite-Canada Disease, Attenuated Familial Adenomatous Polyposis, Endoscopy, and Colonoscopy.

Matthew Rein is a Gastroenterologist in Durham, North Carolina. Dr. Rein has been practicing medicine for over 18 years and is rated as an Experienced provider by MediFind in the treatment of Juvenile Polyposis Syndrome. His top areas of expertise are Cronkhite-Canada Disease, Attenuated Familial Adenomatous Polyposis, Juvenile Polyposis Syndrome, Viral Gastroenteritis, and Endoscopy.