Our Bariatric Surgery Team

Our Experts are at Your Service

MultiCare's Bariatric Surgery Program is built on the expertise of our lead surgeons and program coordinator. They are supported in turn by a team of bariatric surgery, nutrition and weight-loss experts, both on staff and through close collaborations with health care professionals across the MultiCare organization.


james sebesta

James Sebesta, MD

Board-certified Bariatric Surgeon,
Medical Director of Bariatric Surgery

James Sebesta, MD treats obesity, gastroesophageal reflux disease, abdominal wall hernias, breast cancer, as well as other gastrointestinal surgical diseases.

Dr. Sebesta is a Fellow of the American College of Surgeons, and a Fellow of the American Society of Metabolic and Bariatric Surgeons. In his free time, he enjoys fishing, outdoor sports and watching his children’s sporting events.

Kelly Blair

Kelly Blair, MD

Board-certified Bariatric Surgeon

Dr. Blair is a board-certified surgeon, specializing in bariatric surgery. He has expertise in robotic and laparoscopic procedures, offering treatment for a wide array of conditions, including severe reflux and GERD. LINX surgery allows these patients to immediately resume normal activities.

Dr. Blair received his medical degree from Rush Medical College in Chicago. He then went on to complete his residency at Vanderbilt University Medial Center in Nashville, before returning to Chicago for his fellowship work at the University of Chicago School of Medicine.

Away from work, Dr. Blair enjoys learning languages, studying other cultures and foreign travel. He also dedicates time to serving the community through medical missions and participating in his church’s outreach programs.

Hanafy Hanafy MD

Hanafy Hanafy, MD

Board-certified Bariatric Surgeon

Board-certifed in general surgery, Dr. Hanafy has a dozen years of experience performing bariatric surgeries, and brings this expertise to MultiCare's Bariatric Surgery program.

Dr. Hanafy earned his medical degree from Alexandria University in Egypt. He moved to the United States in 1989, and went on to complete his general surgery residency training at the University of Illinois, Chicago, in 1996.

In addition to his board certification in general surgery, Dr. Hanafy is also a Fellow of the American College of Surgeons, a Fellow of the Royal College of Surgeons of Edinburgh, UK, a member of the American Society of Metabolic and Bariatric Surgery (ASMBS) and a member of the Society of American Gastrointestinal and Endoscopic Surgeons (SAGES). Individualized attention to his patients and a keen interest in long-term successful outcomes of surgery drive his personable approach.


Varinia Vigueras, PA-C

Certified Physician Assistant

Varinia Vigueras, PA-C is a certified Physician Assistant who joined MultiCare in September 2017. She received her undergraduate Bachelor of Science Degree in Biology and Chemistry from Saint Martin’s University in Lacey, Washington. After graduating, Ms. Vigueras worked as a Medical Assistant in Plastic Surgery for 3 years. Then, she attended Eastern Virginia Medical School in Norfolk, Virginia and received her Master of Physician Assistant degree.

Ms. Vigueras is a member of the American Academy of Physician Assistants and the Washington Academy of Physician Assistants. Ms. Vigueras passion is helping her patients live healthier lives by promoting long term successful healthy lifestyle choices and preventive care. She sees surgical weight loss patients at MultiCare’s Weight Loss and Wellness Center in Tacoma.

Jennene Wheeler RN

Jennene Wheeler, RN, CBN

Certified Bariatric Nurse, Bariatric Program Coordinator

Jennene earned her nursing degree in 1998, has worked in the field of Bariatrics since 2003 and was one of the first nurses in Washington state to become a Certified Bariatric Nurse. She joins MultiCare from Dr. Hanafy's previous practice.

Jennene's experience in Bariatrics ranges from serving as a bariatric surgery assistant in the OR to serving as a bariatric clinic supervisor. Jennene has the added expertise of having experienced bariatric surgery herself. This gives her unique insight into the patient's experience, allowing her to guide the program with true compassion and understanding. Together, she, Dr. Hanafy and Dr. Sebesta bring an in-depth understanding of how to best serve and support bariatric surgery patients through their weight-loss journey, from initial consultations through post-surgical recovery and long-term weight-loss success.



Colette DeMonte, PsyD


Colette DeMonte, PsyD, earned a doctorate in psychology and her current practice specializes in bariatric surgery. As a central part of the care team, Colette meets with patients at the beginning of their weight-loss journeys to help them determine if bariatric surgery is right for them. Then, she helps prepare patients for surgery by providing education and resources to support them throughout the pre- and post-operative periods.

Treatment philosophy:

"We are continuously in motion toward progress. In attempts to maintain our momentum, difficult choices may need to be made to be considered. Sometimes we get stuck when we find ourselves paralyzed by the fear of making the wrong choice. As a provider, I work alongside patients to discover the path that is right for them. Together we explore their values and strengths, which informs the decision-making process. Ultimately, the patient recognizes the choice that aligns with what is important to them."



Jackie Crews, MS, RDN, CD, CEP

Lead Dietitian, Surgical Weight Loss

Jackie is a Registered Dietitian and Certified Clinical Exercise Physiologist. She received her master’s degree in nutrition and exercise physiology from Washington State University, where she also earned minors in Spanish and psychology. She completed rotations at Tacoma General and St. Peter hospitals and a number of outpatient facilities working in clinical nutrition, patient counseling, and cardiac rehabilitation. Jackie sees patients at the Center for Weight Loss & Wellness’ main clinic in Tacoma, as well as at the Gig Harbor Medical Park.

Kari Due

Kari Hall, RDN, CD, CSOWM

Kari is a Registered Dietitian and a Board Certified Specialist in Obesity and Weight Management (CSOWM). She received her Bachelor of Science in Nutrition from Bastyr University in Seattle, and completed her dietetic internship at Oregon Health & Science University in Portland, Oregon in 2004.

Kari has been focusing on helping people meet their weight loss goals since 2011. She sees surgical weight loss patients at the Center for Weight Loss & Wellness’ main clinic in Tacoma.

Carlee Hayes, RDN, CD

Carlee is a Registered Dietitian with a passion for bariatric surgery nutrition as well as diabetes management and metabolic health. She received her degree at Western Illinois University and completed her internship at the VA Medical Center in Memphis, Tennessee. Carlee works with patients at both the Tacoma and Covington clinics, helping them improve their relationship with food, approach weight loss in a healthy way and optimize nutrition to find their best selves.

Jordan Watson

Jordan Watson, RDN, CD

Jordan is a Registered Dietitian specializing in Bariatric Surgery, weight loss, and overall wellness. She received her degree and completed her dietetic internship from Keiser University in Lakeland Florida. Jordan currently sees patients at MultiCare’s Weight Loss and Wellness Center in Tacoma. Jordan is committed to providing high quality patient care in combination with your Board Certified Bariatric Surgeon to help patients utilize bariatric surgery for their maximum weight loss.

Nancy VanderLinden

Nancy Vander Linden, RD, CD

Nancy is a Registered Dietitian and a Board Certified Specialist in Obesity and Weight Management.  She earned her degree from Central Washington University and completed her dietetic internship with Sea Mar Community Health in Seattle, WA. Nancy is fluent in Spanish and has been aiding individuals in their weight loss since 2013.  

Nancy is committed to providing high quality patient centered care and together with you and your health care team will work towards building a happy healthy lifestyle facilitated through nutrition and physical activity.

Ready to Learn More?

MultiCare’s weight-loss surgery program can help you improve your health, lose weight and feel better. Attend our free, no-obligation in-person seminar to learn more.

Find a Seminar

Can't attend in person? Try our free online seminar.

Online Seminar

Weight-Loss Surgery Assessment

Learn if weight-loss surgery is right for you and what steps you can take to identify and address weight-related concerns. 

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Weight-Loss Support Group

Each support group features a scheduled topic, as well as time for open discussion tailored to meet attendees' needs.

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MultiCare Center for Weight Loss & Wellness

View our convenient Puget Sound locations to find a clinic near you.

Or, call us at 253-301-5280 or toll-free at 844-256-7659 to learn more about our Bariatric Surgery and Medical Weight Loss programs.