Our Team





Sheela Venkatesan, Behavior Change Specialist & Clinical Nutritionist

Sheela is a Clinical Nutritionist and Behavior Change Specialist with NPWC. She values making a personal connection with individuals, an essential for helping patients reach their health goals and sustain improvements for the long term. Sheela has worked with people of all backgrounds in both clinical and corporate settings. Sheela obtained a Masters of Science in Nutrition Education from American University, is a Certified Health Coach, a Certified Personal Trainer and leans on her specialization in Behavior Change to instill small, yet significant changes that translate into lifelong healthy behaviors for her patients.


Ashley DeGeare BS, NDTR, CHC

Ashley is a Nutrition and Dietetic Technician, Registered who has a passion for collaborating and supporting others to help guide them to reach their personal goals. She received her BS in Nutrition and Dietetics from James Madison University and is also a Certified Health Coach. With a previous background working in the mental health field, she has a working knowledge of changing behaviors long-term, managing stress and anxiety, and finding ways to move towards a less hectic yet more healthful lifestyle.


Diane Gressett BS, CDM, CFPP

Diane is a Nutritionist and Certified Dietary Manager with a Bachelor of Science degree in Food and Nutrition from Texas State University. She is passionate about helping people learn how to live a healthy lifestyle and believes a healthy diet is the first step. Diane has worked in various positions in the foodservice industry as well as helping seniors receive healthy meals and educate children in the benefits of healthy food choices.


Lisa Marik, Nutrition Educator, Behavior Change Specialist & CHC

Lisa is a nutrition educator and certified health coach with 20 years experience in education and behavior change as well as extensive training and education in nutrition. She received her health coach certification from the Institute for Integrative Nutrition in New York and holds additional certifications through eCornell Center for Nutrition Studies and Rouxube online Professional Culinary School as well as an MA in education from American University. Her undergraduate degree in psychology also informs her approach to sustainable behavior change toward health goals. She is completing her MS in Nutrition at George Mason University.

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