

Robi Tamargo, Psy.D.
(Reston office)Dr. Tamargo has been a clinical psychologist since 1990 and has worked with Advanced Weight Loss Solutions’ patients since 2004. In addition to providing the psychological evaluations and follow up support for our patients, she also counsels individuals, children and families. “Dr. T” enjoys entertaining with her husband, Jim and their daughters, Audrey and Riley. She is very active in sports with the girls and coaches Riley's soccer team. She also enjoys playing field hockey regularly with her team.
Philip Cohen, PA-C
Philip “the Phil-er” Cohen joined our team in October 2007. Philip has been a PA since 1981 and has many years of experience in surgery and patient care and we are thrilled to have someone of his caliber on our team. Phil assists Dr. Pinnar in surgery, and is also responsible for ongoing patient care and band adjustments. When he is not working, he enjoys spending time with his wife, Pamela, and his three children.
Linda McGavisk, PA-C
Linda has been a clinician for more than 8 years and has worked with Dr. Greene since 2007. She received her undergraduate degree from Cornell University and her Masters degree from The George Washington University School of Medicine and Health Sciences. Prior to joining Dr. Greene and his bariatric practice, Linda worked in internal medicine and family practices. After cultivating a sound basis for understanding the patient's holestic needs, she now applies the idea of healthy living to support our bariatric patients.

Kellie Power, PA-C
(Reston office)
Kellie joined Advanced Weight Loss Solutions in October 2008. She earned her Bachelor of Science in Exercise Physiology from Slippery Rock University in 2003 followed by a Master of Science in Physician Assistant Sciences from St. Francis University in 2007. Prior to entering graduate school, Kellie worked with Parkinson’s, stroke and cardiac rehabilitation patients in a medical fitness facility. In her spare time, Kellie enjoys spending time with family, friends and her two dogs Eddie and Jake.

Diane Glisson, Office Administrator
(Rockville office)
Wendy Colbert, Insurance & Finance Coordinator and Surgery Schedule Manager
(Rockville office)

Gloria Randall, Insurance & Finance Coordinator and Surgery Schedule Manager
(Reston office)Gloria brings over 30 years of experience in healthcare finance and insurance. She joined Advanced Weight Loss Solutions in July 2007 and has quickly become an integral part of the team. She enjoys interacting with our patients and helps them understand how to navigate through insurance company submissions. In her spare time, she enjoys spending time with her daughter, Germaine and her granddaughter, Brittany and she also an avid reader.

Devin Oliver, Clinical & Patient Coordinator and Billing Specialist
(Rockville office)

Maribel Rivera, Billing Specialist and Financial Coordinator
(Rockville office)
Ada VanHecke, Patient Liaison
(Rockville office)

Patti Hessman, Patient Coordinator
Patti was in the travel industry for 20 years and still enjoys seeing the world. In 2004, she began working for her close friend, Dr. Tamargo, as her billing manager and insurance coordinator. When Dr. Tamargo began seeing patients in the new AWLS office suite, Patti began helping out (an understatement) as patient coordinator for AWLS. As a successful band patient, Patti brings a first-hand excitement to AWLS. In her spare time, Patti enjoys spending time with her son, Nathan.

Kim Wetmore, Patient Coordinator
(Rockville office)
Nicole Devenish, Medical Assistant
(Rockville office)

Lynda Forbes, Medical Assistant
As long as Lynda can remember, she has wanted to be in the medical field. She is now living her dream! She is trained and experienced in triage and medical reception, and is currently working on her RN certification. Though Lynda presently resides in Prince William County, she was born in Washington, DC and is often drawn back by her love of the Smithsonian. Lynda is active in her church, sings in the choir, and spends quality time with her niece and nephews. She joined our team in November 2007, and we are excited about her enthusiasm for Advanced Weight Loss Solutions.
Joy Green, Medical Assistant
(Rockville office)
Woody McMahon, Exercise Physiologist
(Reston)Woody has been working as a health and fitness professional for over 20 years. Before starting his career as a healthy lifestyle coach, Woody earned his Bachelors of Science degree in human biology from the University of Maryland, his Doctorate in chiropractic medicine from Palmer College of Chiropractic and is certified as a personal trainer through the National Strength Professionals Association. Woody assists clients with complex healthy lifestyle problems and his personal and professional experience allows him to assist many people considered beyond help. Woody makes each solution FUN and challenging with just the right mix of physical activity, healthy eating and stress reduction activities.

Alison Sonak, RD
(Reston office)As our nutritional leader, Alison is our patient's healthful eating reference point. She moved to the Northern Virginia area with her family at the age of ten and later studied Human Nutrition, Food and Exercise at Virginia Tech. Alison's background includes six years in critical care and cardiac rehabilitation and 4 years of out-patient counseling. When Alison is not working, she is spending time with her 2 children, Nathanial and Mackenzie, and her husband Will. Her hobbies include shopping and playing with the kids on a warm sunny day.