The Eating Disorders Program

Monmouth Psychological Associates

620 Shrewsbury Ave, Suite D

Tinton Falls, NJ 07701 (At GSP Exit 109)

P: (732) 530-9029    F: (732) 530-0387


Our Staff

Donald Erwin, Ph.D., who is the Clinical Director of Monmouth Psychological Associates' Eating Disorder Program, received his Bachelor Degree in Psychology from Harvard University in 1970, and then spent a year in research at the Massachusetts General Hospital in Boston. Dr. Erwin went on to Brandeis University to get his Master's and Doctorate degrees, and did his doctoral research at Oxford University as a Sachar International Fellow. After getting his Ph.D., he was involved in a post-doctoral training program, Lifespan Developmental Psychology, at the Duke Medical Center in Durham, North Carolina. Dr. Erwin has been working with eating disorders for 35 years, and has been active in a variety of professional and consumer-oriented organizations. He founded the NJ Chapter of the American Anorexia/Bulimia Association in 1990 after serving on the Board of the national organization for a number of years. He has been President of the Mental Health Association of Monmouth County and the Monmouth-Ocean County Psychological Association. He is a frequent speaker at conferences and workshops in New Jersey, and often is asked to do Eating Disorders prevention and awareness programs in schools. He was also on the faculty of Hahneman Medical School and is a Clinical Supervisor in the Applied Psychology Program at Rutgers University. While Dr. Erwin agrees that he has been fortunate to have some very good opportunities for academic training, he would maintain that he has learned the most from his patients over his years of practice. He feels that his primary focus in the treatment of an eating disorder is in helping his patients understand what is behind their troubled relationships with food and their bodies. He is open and direct in his counseling techniques, and sees his work to be collaboration with his patients to remove the eating disorder from their lives. Dr. Erwin lives close to his practice, and likes to spend his time off with his family taking hiking and camping trips.


Brunella DeMarco, LCSW, is a Clinical Social Worker at Monmouth Psychological Associates. Brunella has been providing services at Monmouth Psychological Associates for over 20 years. She has provided individual therapy, family therapy, and group therapy for children, teenagers, and adults. Brunella works with patients of all ages, however she brings to the practice a strong clinical background in treating children, teens, and young adults. Brunella feels strongly that early intervention and treatment is important, and has therefore focused her clinical training and experience in treating younger patients. She has had experience in treating children and teens in both outpatient and inpatient settings as well as in schools. Brunella focuses on understanding the developmental stages and psychosocial needs of children, teenagers, and younger adults, in our quickly changing and demanding society. She received her Bachelors Degree from Rutgers University, then went on to receive her Masters Degree from the Rutgers School of Social Work. Her education and training focused on individual, family, and group therapy with an emphasis on incorporating research into practice. Brunella worked at CPC Behavioral Health, a community mental health agency, in a variety of programs. She was an outreach worker and a counselor for the Community Alternatives Program; she also worked as a clinician in the Outpatient Department and in the Alternative School Program. Her inpatient experience was with working with children and teens at Arthur Brisbane Child Treatment Center as a youth worker, case manager, and primary therapist. Brunella also worked for the Barnegat Township Schools, and presently works for the North Hanover Township School District as a School Social Worker. Brunella enjoys art, photography, music and bike riding. She has a great appreciation for creativity in problem solving as a tool for managing stress. Brunella values the importance of developing positive relationships and spending time with family and friends. 


Elizabeth Ebner, M.S., R.D., a clinical nutritionist at Monmouth Psychological Associates, received her Bachelor degree from Rutgers University with a double major in Biochemistry and Nutritional Science. Liz completed her Masters degree program at Texas A&M University in Nutritional Biochemistry, and began an intensive year-long dietetic internship at Texas A&M affiliates, which she completed in 1992. Her Master's Thesis was a study devoted to weight management in obese and non-obese females, and was published in the Journal of the American Dietetic Association in March 1992. Liz has been working with clients in the Eating Disorders Program at Monmouth Psychological Associates for almost eight years. Prior to coming to this program, she worked for two years for Diabetes Treatment Centers of America. She currently is active in the American Dietetic Association, and offers her nutritional services through their national network. Liz also speaks to a variety of schools and health care professionals in both New Jersey and Pennsylvania regarding eating disorders awareness. The most significant factor in Liz's success with her eating disordered patients is that she herself had Anorexia Nervosa. During her adolescence, she sought professional treatment that only had a marginally positive effect. It was not until she was in her early twenties, when she devoted herself to the study of nutrition, that she truly recovered. She strongly believes that part of her continued recovery process is setting a healthy example for her patients. Liz enjoys many indoor and outdoor exercises, especially when they involve her two children; and believe it or not, she also loves to cook!


Carly Rosenstein, M.S., L.P.C., N.C.C., has been working at Monmouth Psychological Associates since the summer of 2007 in various capacities. She has co-facilitated the Eating Disorders Support Group at Riverview Medical Center in the past. Carly graduated from Penn State University with a B.S. in Bio-evolutionary Psychology and a Masters in Mental Health Counseling from Monmouth University in 2012. She additionally worked as a Primary Therapist at the Eating Disorders Unit at Robert Wood Johnson: Somerset for 3 years, treating an acute population of patients struggling with eating disorders. She hopes to bring compassion and empathy to each counseling relationship, understanding the many intricacies and differences among each patient
struggling with their eating disorder. In her spare time she enjoys spending time with her family and
going back to Penn State to tailgate with her friends and cheer on the Nittany Lions! 


Mary Jo Iarussi, M.S., R.D., has been a practicing Registered Dietitian since 1987. She completed her Master's Degree in Clinical Nutrition from New York University in 1985. Since then, her services have been utilized at health clubs, long term care facilities, teaching hospitals, weight loss centers, yoga studios and in the public schools. In private practice, Mary Jo has counseled hundreds of clients in the area of weight loss, sports nutrition and eating disorders. In recent years , she has earned a teaching certificate in Family and Consumer Science and Personal Finance. Mary Jo also received her certificate as a registered yoga instructor. Mary Jo is a mother of 4 children ages, 24, 22, 18, and 14. She enjoys spending time with her family hiking, doing yoga together and preparing meals. She is currently working as a high school teacher, teaching personal finance and career planning. Mary Jo has an extensive background in yoga, culinary arts, nutritional counseling and cognitive sciences. She includes visualization, meditation, mindfulness, and personal belief systems in her health and wellness programs. Combining these concepts with nutrition produces a unique and integrated approach to self-trust and improving one's personal relationship with food and one's body.


 Spirit Bee has come to our practice all the way from Locust, Alabama. She enjoys greeting patients in our waiting room and will even provide emotional support to patients during psychotherapy sessions upon request. She specializes in therapeutic licking and eliciting belly rubs from patients and their families.