Weight Loss Surgery Specialists at BIDMC

All members of our weight loss surgery team are experts in their field and experienced in the specialized care of bariatric surgery patients.


We recognize that each of our patients is a unique individual with a diverse set of needs. Our multidisciplinary weight loss surgery team is committed to giving you the compassionate care you deserve throughout the entire process: initial evaluation, weight loss surgery, and follow-up care.

Bariatric Surgeons

Daniel B. Jones, MD

Chief, Bariatric and Minimally Invasive Surgery

Souheil W. Adra, MD

Weight Loss Surgery

Morgan A. Bresnick, MD

Weight Loss Surgery

Rahul Gupta, MD

Weight Loss Surgery

Bariatric Medical Director

Edward Hatchigian, MD, MS

Bariatric Medical Director

Bariatric Dietitians

Female Doc Silhouette

Michelle Mamis, RD, LDN

Bariatric Dietitian

Danelle Olson, RD, LDN, CNSC

Danelle Olson, RD, LDN, CNSC

Bariatric Dietitian

Bariatric Nurses & Nurse Practitioners

Female Doc Silhouette

Leigh-Ann Berk, ANP-BC, MSN, RD

Bariatric Nurse Practitioner

Female Doc Silhouette

Erin Hogan, RN, BSN

Bariatric Nurse

Female Doc Silhouette

Heather Pleskow, NP

Bariatric Nurse Practitioner

Linda Trainor, RN, BSN

Linda Trainor, RN, BSN

Bariatric Nurse Coordinator

Bariatric Social Work

Sue Walker, LICSW, MSW

Sue Walker, LICSW, MSW

Bariatric Social Worker

Other members of the Weight Loss Surgery team may include specialists in:

  • Cardiology
  • Pulmonology (lung)
  • Anesthesiology
  • Hepatology (liver)
  • Hematology (blood)
  • Pharmacology (medication)
  • Plastic Surgery