Your Care Team

The Center for Weight Management and Bariatric Surgery is a multidisciplinary team of surgeons, medical doctors, dietitians, psychologists, nurses, and support staff committed to providing you with long-term comprehensive care and support. They are experienced, compassionate and your friend for life.

Physicians

Michael E. Jiser MD

Medical Director of the Bariatric Surgery Program, Surgeon

Roy R. Shen MD

Medical Director of the Trauma Program, Surgeon

Rebecca Christine Shore MD

Surgeon

Wassim Mazraany MD

Chief of Surgery, Surgeon

Douglas C. Campbell MD

Surgeon

Caitlin J. Polistena MD

Surgeon

Clinical Leadership

Barbara Viens DNP, RN, NEA-BC, ONC

Director of Strategic Service Lines

Melissa L. Harvey FNP

Nurse Practitioner, Advanced Practice Nurse Supervisor

Susan Seamans LPN

Practice Manager

Care Providers

Paul R. O'Brien Ed.D

Psychologist

Jenny L. Hegmann MS, RD, LDN

Bariatric Dietitian

Laura Elizabeth Jarosz MS, AGNP-C

Rose Stanzione RD

Bariatric Dietitian

Support Staff

Susan Dufresne

Bariatric Administrative Assistant

Nancy Mullin RN

Insurance Coordinator

Ashley Rolens

Patient Advocate and Medical Assistant

Bette Jo Toppin M.Ed, LMHC, CHt

Group Facilitator

Mike LaPlante

MYHH facilitator

Melissa McLaughlin

Instructor