Physicians and Staff

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.

Katherine L. Applegate, PhD
Appointment Telephone
(919) 660-2229
Katherine L. Applegate, PhD
  • Psychiatry and Behavioral Sciences / Medical Psychology
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Eric J. DeMaria, MD
Appointment Telephone
(919) 660-2229
Eric J. DeMaria, MD
  • Surgery / General Surgery
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Detlev Erdmann, MD, MHSc, PhD
Appointment Telephone
(919) 684-3320
Detlev Erdmann, MD, MHSc, PhD
  • Surgery / Plastic and Reconstructive Surgery
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Kelli E. Friedman, PhD
Appointment Telephone
(919) 660-2229
Kelli E. Friedman, PhD
  • Psychiatry and Behavioral Sciences / Medical Psychology
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L. Scott Levin, MD
Appointment Telephone
(919) 613-7797
L. Scott Levin, MD
  • Surgery / Plastic and Reconstructive Surgery
  • Surgery / Orthopaedic Surgery
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Dana D. Portenier, MD
Appointment Telephone
(919) 660-2229
Dana D. Portenier, MD
  • Surgery / General Surgery
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Aurora D. Pryor, MD
Appointment Telephone
(919) 660-2229
Aurora D. Pryor, MD
  • Surgery / General Surgery
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Alfonso Torquati, MD, MSCI
Appointment Telephone
(919) 660-2348
Alfonso Torquati, MD, MSCI
  • Surgery / General Surgery
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Nutritionist

Nurse Practitioners

Nurses

  • Mary Whitman, RN
  • Frances Kovens, RN, MSN, CNOR
  • Sandra Seeney, RN

Administrative Manager

  • John Ferguson, MSW, LCSW

Anesthesiologists

  • Edward G. Sanders, MD
  • Ruth E. Long, CRNA