Duke Weight Loss Surgery brings together surgeons, nutritionists, psychologists, and a support staff committed to helping you achieve your weight-loss goals and ensure a safe and successful pre- and postoperative experience.

Click a name to learn more about a physician, nurse, program coordinator, or insurance specialist who offers weight loss surgery services.

Philip A. Omotosho, MD

Services: Gastroenterology, Weight Loss Surgery
Appointment Telephone: 866-637-0711, 919-684-4064, 919-862-2715

Chan W. Park, MD

Services: Gastroenterology, Weight Loss Surgery
Appointment Telephone: 866-637-0711, 919-862-2715

Dana D. Portenier, MD

Services: Gastroenterology, Weight Loss Surgery
Appointment Telephone: 866-637-0711, 919-684-4064

Ranjan Sudan, MD

Services: Gastroenterology, Weight Loss Surgery
Appointment Telephone: 866-637-0711

Alfonso Torquati, MD, MSci

Services: Gastroenterology, Weight Loss Surgery
Appointment Telephone: 866-637-0711, 919-684-4064

Jin S. Yoo, MD

Services: Gastroenterology, Weight Loss Surgery
Appointment Telephone: 919-470-7018, 919-862-2715

Mid-level Providers

• Erica Sudyk, PA

Psychologists

• Kelli Friedman, PhD

Nutritionists

• Carson Garoni, RD, LDN
• Elizabeth Keenan, RD

Nurses

• Kimberly Ashley, RN Clinical Team Lead
• Tammy Horton, RN
• Barbara Parker, MLPN
• Sheila Peeler, RN
• Garica Sawyer, RN
• Janice Schmittle, RN