Nutrition Faculty

Traci Wessel headshot

Traci Wessel, MS, RD, CSG, RDN

Nutrition Department Chair, Dietetic Internship Director
Phone: 847.925.6537
Office: X227

Traci Wessel is the Nutrition Department Chair and Dietetic Internship Director at Harper College. Traci holds an M.S. in Nutrition and Wellness from Benedictine University and completed her internship there as well. She obtained Board Certification in Gerontological Nutrition through the Commission on Dietetic Registration. Traci is the current President-Elect and Secretary of the North Suburban Academy of Nutrition and Dietetics. Her career has been focused in sports nutrition, pediatrics, mental health, geriatrics, management (clinical and food service) and education. Traci is currently taking courses in integrative and functional nutrition and her passion lies in women's health.


John Athamanah headshot

John Athamanah, MS, MBA, RD

Adjunct Faculty Instructor


Johnny Athamanah has been an Adjunct Faculty member at Harper College since 2004.  Mr. Athamanah has multifaceted work experience in clinical and hospital foodservice management, corporate training, and collegiate teaching experience.  He has most recently served as Food Services Systems Manager and Dietetics Internship preceptor at the Edward Hines Jr. Veteran’s Hospital.  He currently teaches courses in the Nutrition Department at Harper College.

Mr. Athamanah has earned a B.S. in Human Nutrition and Dietetics and a M.B.A. in Marketing from the University of Illinois at Chicago.  He also has completed a M.S. in Human Nutrition at Eastern Michigan University.


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Debra McDaniel, MBA, RD, LDN

Adjunct Faculty Instructor

Debra McDaniel is a Harper College Adjunct Instructor for Nutrition 101. She earned a Bachelor of Science Degree from the University of Illinois at Champaign, Illinois. Debra completed a dietetic internship program at the University of Iowa Hospital in Iowa City, Iowa. Debra has an MBA degree from Roosevelt University in Chicago, Illinois. She has worked as a clinical dietitian at Lutheran General Hospital in Park Ridge, Illinois, and at Northwestern Memorial Hospital in Chicago, Illinois. With a strong interest in food safety, Mrs. McDaniel has performed restaurant audits for EcoSure. Debra is a member of the Academy of Nutrition and Dietetics, formerly known as the American Dietetic Association. She is also a member of the state and suburban dietetic groups.


Racheal Costello

Rachael Costello, MS, RDN, LDN

Adjunct Faculty Level II/Clinical Supervisor

Rachael Costello is a clinical supervisor and adjunct faculty in the Harper College Nutrition Department.  Rachael holds an M.S. in Applied Nutrition from the University of New England and a B.A. in Dietetics from the University of Northern Colorado.  She completed her dietetic internship at Virginia Commonwealth University Medical College of Virginia.  Rachael is the current President for the North Suburban Academy of Nutrition and Dietetics. She has a certificate of training in food allergies from the Academy of Nutrition and Dietetics.  Her career has been focused primarily in clinical dietetics, working in long term care facilities, hospitals and private practice with a particular focus in gastrointestinal health, weight management, and food allergies.


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Dina Genovese, RD, LDN

Adjunct Faculty Instructor

Dina Genovese is a Registered Dietitian Nutritionist and avid fitness and sports enthusiast. She began her nutrition education at Harper College in the Dietetic Technician program and completed her nutrition education at Dominican University in 2014.  Dina is currently pursing her MS in Applied Exercise Science and Sports Nutrition from Concordia University Chicago.

Dina provides nutrition counseling and education to individuals and groups and works with clients to establish healthy lifestyle changes at a local health club. She is also a Consulting Nutritionist for the National Head Start program. Dina is a member of the Academy of Nutrition and Dietetics (AND) and the SCAN practice group (Sports, Cardiovascular and Wellness Nutrition). She enjoys spending time with fellow sports enthusiasts and sharing her passion for living a well-balanced healthy lifestyle.


Mia Greco headshot

Mia Greco, MS, MPH, RD, LDN

Adjunct Faculty Instructor/Clinical Supervisor


Mia Greco is a clinical supervisor and adjunct faculty member of the Nutrition Department at Harper College. Mia holds an M.S. in Nutrition and Wellness and a Master of Public Health both from Benedictine University, where she also completed her dietetic internship. Mia is the current Treasurer of the North Suburban Academy of Nutrition and Dietetics. Mia's career expertise lies in foodservice management in senior living communities, where she managed operations, trained and developed staff and educated residents on food and nutrition.  In addition to the work with the Dietetic Internship at Harper, Mia also is a contributing speaker for Harper Wellness, with workshops for employees and students on Intuitive Eating, Body Diversity and Food Freedom.  


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Darlene Holop, MS, RD, LDN

Adjunct Faculty Instructor


Darlene Holop is a registered, licensed dietitian with over 25 years of experience in the field of nutrition. She received her certification in dietetics at Mount Mary University in Wisconsin, and recently achieved her Masters in Nutrition Education from Rosalind Franklin University in North Chicago, Il. Darlene is proud to offer individualized nutrition counseling services for clients who are looking to improve their quality of life and make informed, healthy food choices to take charge of their physical health. She encourages clients to be more mindful about their eating and promote lifestyle changes to help them achieve their goals.


Lisa Piagari headshot

Lisa Piagari, MS, RD, LDN

Adjunct Faculty Instructor


Lisa knows that mentorship is necessary for student success. She is a registered dietitian practicing clinical nutrition with 18 years of teaching online nutrition. She is respectful of food as it nourishes the body and impacts health. Lisa earned her Master of Science in Nutrition and Dietetics at Northern Illinois University while completing the AP4 field experience program. To create a vibrant learning environment, she appreciates students' perspectives. Her motto is, "Healthy eating is a good habit!"


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