Our Team

Eating Recovery Center, Ohio’s eating disorder treatment facility has been developed and is overseen by a compassionate team of experts across many behavioral health disciplines. Eating Recovery Center, Ohio’s medical and clinical experts collaborate closely with the esteemed experts of Denver-based Eating Recovery Center and Chicago-based Insight Behavioral Health Centers in the development of treatment philosophy and programming. Together, these eating disorder treatment experts possess over 200 years of combined specialized experience.

Diana Tieger 
Clinical Director - Ohio

Dr. Diana Tieger serves as the Clinical Director of Eating Recovery Center Ohio, which treats the full spectrum of eating, mood, and anxiety disorders at Intensive Outpatient and Partial Hospitalization levels of care.  In her role, she supports the ERC Ohio team to deliver compassionate, trauma-informed, evidence-based treatment to all patients and families served.  Dr. Tieger first joined ERC in 2016 as a primary therapist at ERC Colorado’s adult inpatient/residential eating disorder program.  Dr. Tieger received her doctorate in clinical psychology from Xavier University in Cincinnati, OH and completed her pre-doctoral internship training at Zucker Hillside Hospital in New York, NY.  She completed a post-doctoral fellowship in eating disorders at The Renfrew Center in Philadelphia, PA.  Dr. Tieger is passionate about caregiver involvement in treatment and leads multi-family skills groups for support persons of current patients.  Dr. Tieger’s special interest areas include treatment of borderline personality disorder and supporting ambivalent or reluctant patients with engagement in treatment. 

Heather Dlugosz, MD, CEDS
Attending Psychiatrist

Dr. Dlugosz, an Eating Recovery Center, Ohio staff psychiatrist, has experience with the treatment of eating, mood and anxiety disorders in adolescents and adults. She has been with Eating Recovery Center since 2015, when the Ohio facility was opened. Dr. Dlugosz is board certified in Adult and Child and Adolescent Psychiatry and is a Fellow of the American Psychiatric Association and a Certified Eating Disorder Specialist (CEDS). . 

Dr. Dlugosz grew up in Northeast Ohio and received her Bachelor’s degree from Albion College.  She earned her M.D. from the University of Cincinnati College of Medicine, completed her adult psychiatric residency at University Hospital in Cincinnati, now the University of Cincinnati Medical Center and her Child and Adolescent Psychiatry Fellowship at Cincinnati Children’s Hospital Medical Center where she served as Chief Resident.

Dr. Dlugosz embraces a collaborative, patient centered approach to the assessment and treatment of patients and her broad experience in a variety of settings is a solid foundation for providing compassionate care to patients at all levels.

Jessica Barth Nesbitt MA, RD, LD, CEDRD
Nutrition Manager - Ohio & South Carolina 

Jessica is a Certified Eating Disorders Registered Dietitian (CEDRD).  Jessica has experience in working with individuals with eating disorders at all levels of care and across the lifespan.
Jessica joined Eating Recovery Center Ohio in 2015 as a Clinical Dietitian and currently serves as Nutrition Manager.  Jessica was previously a clinical dietitian in the Harold C. Scott Eating Disorder Program at the Lindner Center of Hope in Mason, Ohio.
Jessica received her B.S in Dietetics from Morehead State University and completed her dietetic internship at Ball State University. Jessica received her M.A in Health, Physical Education and Sport Sciences with an emphasis in Exercise Physiology from Morehead State University.
Jessica is passionate about training future dietitians.  She serves as an internship preceptor for the University of Cincinnati Dietetic Internship Program.  She is also an active member of the Academy of Nutrition and Dietetics and serves as the Mentor Program Coordinator for the Behavioral Health Nutrition Dietetic Practice Group. Jessica’s professional interests include treating athletes with eating disorders and the role of exercise in eating disorder maintenance and recovery.  She has lectured on these topics in the community.

Allison Mecca, PsyD

Dr. Allison Mecca initially joined Eating Recovery Center as a clinical psychology post-doctoral fellow in eating disorders and then transitioned into the role of a Primary Therapist, serving individuals with a range of eating pathology at the PHP and IOP levels of care. With a background of training in Dialectical Behavior Therapy, Radically Open – Dialectical Behavior Therapy (RO-DBT), and Exposure and Response Prevention (ERP), Dr. Mecca has recently assumed the role of clinical lead of the newly developed Mood, Anxiety, and Trauma-related program. Prior to ERC, she worked at Charis Center for Eating Disorders, Butler University Counseling Center, and Xavier University Psychological Services Center. Dr. Mecca strives to support individuals in moving away from their disorders that keep them stuck and moving towards a valued and connected life that is worth living. She is passionate about supporting and advocating for her patients, as well as fostering awareness and education in the community.



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Eating Recovery Center is accredited through the Joint Commission. This organization seeks to enhance the lives of the persons served in healthcare settings through a consultative accreditation process emphasizing quality, value and optimal outcomes of services.

Organizations that earn the Gold Seal of Approval™ have met or exceeded The Joint Commission’s rigorous performance standards to obtain this distinctive and internationally recognized accreditation. Learn more about this accreditation here.

Joint Commission Seal
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