Staff

Carmela Pontillo, RN, MSN, CBN

Bariatric Program Manager

Carmela has been working at Overlake since late 2011 as the bariatric program manager and in the field of bariatric surgery since 2004. She was certified by the ASMBS as a Bariatric Nurse in 2008 and has a degree in psychology and a master’s degree in nursing from McGill University in Montreal, Canada.

Although she has worked as a registered nurse for more than 30 years in many different areas, Carmela feels that working in metabolic and bariatric surgery has been by far the most rewarding. She considers it a great privilege to be granted the opportunity to share in our patients’ remarkable journeys towards health and wellness


Shiree Harsh

Clinic Supervisor

Shiree has been with the clinic since 2011. For her, being able to share in the journey of the patients as they work toward their goal of weight loss is most rewarding. Shiree believes it is important for patients to feel confident that she and the rest of Overlake’s staff are committed to working just as hard as the patient to make sure that their goal of weight loss and a healthier life-style is reached. The relationship created between patient, staff and physician during this process is a very special one, where everyone shares in the journey and everyone celebrates together each step toward a healthier life style.


Carrie Tollefson

Outpatient and Clinical Dietician

Carrie has worked for Overlake Medical Center since 2006 and with the bariatric program since 2010. She enjoys being part of bariatric patients’ journey to make significant changes in their lifestyle, eating and fitness habits. It is exciting for her to see their motivation and enthusiasm as they transform their way to better health. She is inspired by patients’ courage and dedication. Carrie co-facilitates the weight loss surgery support group with Randy Brandeis and Carmela Pontillo. Together with the patients, all three clinic staff laugh, cry, grow and change. Carrie is very proud of the patients in this group.


Aparna Lakshman, MA

Certified Medical Assistant

Aparna joined the team in August 2013 as a medical assistant. She is a University of Washington graduate and an aspiring physician assistant. Being a new member of the team has been a great learning experience for her. Meeting new people each day and being a part of their weight-loss journey is the most rewarding part of her job. Aparna feels very lucky to be part of a team where every member strives to provide quality, compassionate care to their patients.


Randy Brandeis, MSW, CSW

Clinical Social Worker

Randy co-facilitates the bimonthly support groups at Overlake, provides psychological evaluations for pre-surgery patients and sees individuals in his clinic practice. Randy has worked in multidisciplinary settings for 25 years and is committed to the Overlake concept that the best patient outcomes are the result of diverse professional disciplines working together.

Randy Brandeis is a board certified clinical social worker who received his Masters degree in 1976 from the University of Illinois Jane Addams School of Social Work. Randy has worked since 1987 on the cognitive and behavioral treatment of obesity and other chronic medical conditions. He has worked with bariatric surgery patients since 2006.