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Meet Our Clinicians


Anne-Marie Turnier, M.D.

Dr. Turnier is Board Certified in General Psychiatry and Child and Adolescent Psychiatry. After growing up in Chapel Hill, North Carolina, she went far north to attend college at Smith College in Northampton, MA where she graduated with Honors in Government in 1992. After graduating from Smith College, she worked on cancer clinical trials and took additional course work at North Carolina State University. Dr. Turnier graduated from medical school at the University of North Carolina at Chapel Hill in 1999 and completed her residency and fellowship at the University of North Carolina as well in 2004. During her fellowship, she was Chief Resident and helped develop a lecture series on leading childhood theorists. Dr. Turnier's areas of particular interest include: ADHD, learning disabilities, autism, anxiety disorders, depressive disorders, eating disorders and mood disorders. In addition to using medications to help individuals reach their peak, she also implements nutritional/supplement recommendations, life style changes, and psychodynamic or cognitive behavioral therapy. Dr. Turnier does not believe that medications are a "cure-all" or should be the first step in treatment for everyone. She believes that assistance should be tailored to fit a person's needs and lifestyle. She encourages her patients of all ages to be active participants and advocates in their care. Dr. Turnier believes it is extremely important to work with other caregivers and/or academic providers on her patient's treatment team. She also enjoys teaching medical students, resident physicians and fellows at the medical school of the University of North Carolina. Dr. Turnier lives in Apex, NC with her husband, three sons, two cats, one dog, and five hermit crabs. In her off time, she enjoys hanging out with her family, volunteering, baking, and obtaining her black belt in Tae Kwon Do.

Carrie Anne Dittner, Ph.D.

Dr. Dittner grew up in Upstate New York and attended Binghamton University where she graduated with Honors in Psychology in 1992. Following her Bachelor's degree, Dr. Dittner completed a dual-doctorate program, earning Ph.D.'s in both Clinical and Developmental Psychology at the University of Maine. After all that snow and cold weather, Dr. Dittner accepted an internship in Medical Psychology at Duke University Medical Center. While here, she met and married her husband, Paul, and returned north to complete a post-doctoral internship in Child and Family Psychology at Mayo Clinic in Rochester, Minnesota. Dr. Dittner remained on staff in the Department of Psychiatry and Psychology at the Mayo Clinic for three years and was co-director of their Inpatient Medical Psychology program, treating children and families suffering from medical conditions such as cancer, diabetes, and seizure disorders. She also was co-director for the ADHD program and provided numerous assessments for children with learning disabilities and autism as well. In addition to working in the medical setting, Dr. Dittner has participated in research studies and published articles and book chapters, as well as taught classes at the University of Maine, Mayo Medical School, and Peace College. Dr. Dittner returned to North Carolina in 2002 and has since been providing care to families in the Triangle area. Her training has been characterized by a multi-disciplinary team approach with a focus on cognitive behavior therapy and family systems theory. She has particular interests and expertise in early childhood including toddlers, autism spectrum disorders, assessment, anxiety, and ADHD. Dr. Dittner is a firm believer in treating the whole child, working with other providers, family members, siblings, and the "school" family as well. It is her goal for children to reach their total potential and find true quality of life. Dr. Dittner resides in Apex with her three amazing boys and wonderful husband of 18 years. In her free time, Dr. Dittner enjoys spending time with her family, watching her 3 boys play baseball, following fashion, reading, decorating, and exercise.

Also working with Dr. Dittner is Dr. Jamie Stashko.

Jamie Stashko, Psy.D.

Dr. Stashko was born and raised in the Boston area. She graduated summa cum laude from Northeastern University in 2008 where she earned a Bachelor of Science in Psychology. She then worked with young children with autism and other developmental disorders as an Applied Behavior Analysis (ABA) therapist. She entered graduate school at Antioch University New England with the hope of extending her expertise beyond behaviorism. Her clinical practica experiences included working within an autism specialty clinic, public elementary schools, an inpatient treatment program, and oversees providing assessment for children with HIV. She then completed an APA accredited internship at Community Healthlink Youth and Family Services. There, she provided outpatient therapy and assessment to a diverse caseload of children, adolescents, adults, and families. Upon earning her Doctorate of Psychology (PsyD), she completed a postdoctoral fellowship at Massachusetts General Hospital/Harvard Medical School: Learning and Emotional Assessment Program (LEAP) where she specialized in the neuropsychological evaluation of children and adolescents. Such evaluations served to clarify current functioning and commonly rule-out neurodevelopmental disorders (e.g., attention-deficit, autism, and learning disorders). Prior to her move to North Carolina, she worked as a licensed clinical psychologist in a large group practice providing comprehensive assessment and psychotherapy. Her gentle therapeutic style is particularly well suited for young children, adolescents and young adults experiencing anxiety and/or depression, and those looking for support through life’s challenges. Her work is regularly informed by attachment, client-centered, cognitive-behavioral, relational, and systems theories, but is tailored to each individual’s unique needs and wishes. Outside of the office, Dr. Stashko enjoys spending time outdoors, cooking for friends and family, and exploring the triangle area.

Katherine C. Hutchinson, Ph.D.

Dr. Hutchinson graduated from the University of Notre Dame in 1997 with a dual major in psychology and pre-medicine. Following her graduation, she lived in Chicago and worked as a management and technology consultant. In 2001, Dr. Hutchinson and her husband moved to Durham, NC to attend graduate school at Duke University. While earning her Ph.D. in Clinical Psychology at Duke, Dr. Hutchinson received training in assessing and treating adults, children and families coping with depression, anxiety, OCD, ADHD, and chronic illness. Dr. Hutchinson also participated in numerous research studies at Duke, including serving as a certified cognitive behavioral therapist on a multi-site national treatment study of childhood anxiety. Dr. Hutchinson’s own research focused on parenting stress and adjustment in parents of children with cancer. She has published numerous articles and book chapters on this topic. Dr. Hutchinson also completed an internship in Medical Psychology at Duke University Medical Center, where she had further opportunities to work on multi-disciplinary teams providing treatment to children, adults and families. Overall, Dr. Hutchinson’s approach to treatment is both evidence based, with a focus on cognitive behavioral therapy and family systems theory, and personalized to meet the needs to each individual or family. She has a particular interest and expertise in parenting stress and early childhood (ages 0-5). She also enjoys family and couples therapy. Dr. Hutchinson believes in taking a collaborative approach to treatment, partnering with schools, physicians and families provide the highest quality of care. In her practice, she appreciates the opportunity to connect with others, improve their quality of life and build resilience to face life's stressors. When not practicing psychology, Dr. Hutchinson enjoys yoga, travel, reading and spending time with her husband and two young children.

David FitzGerald, Ph.D.

Dr. FitzGerald is a native New Yorker who completed both his undergraduate and graduate education at the University of Notre Dame. He received his Bachelor’s degree with a major in Psychology in 1988. He earned his Master’s degree (1991) and Ph.D. (1995) through Notre Dame’s Combined Program, which joined training in both Developmental and Counseling/Clinical Psychology. He completed his internship at the University of Pennsylvania School of Medicine working at Children’s Seashore House/Children’s Hospital of Philadelphia. After his internship, Dr. FitzGerald joined the faculty of Penn until 1996 when he accepted an appointment in the Psychiatry Department at Duke University Medical Center and relocated to the Triangle area. He was at Duke for fourteen years until joining Peak Development Associates in early 2010. While at Duke, Dr. FitzGerald had extensive clinical and research experience with disruptive behaviors, such as oppositional defiant disorder, conduct disorder, and ADHD. He was a member of the Duke ADHD Program for ten years and co-directed the Conduct Disorder/Oppositional Defiant Disorder Program at the Durham Community Guidance Clinic (DCGC). He also directed two different psychological and psychoeducational testing clinics, one through DCGC and a second through the Duke ADHD Program. In these clinics, he routinely conducted evaluations of developmental and learning disorders, as well as child, adolescent, and adult ADHD. In addition, Dr. FitzGerald has served as a diagnostic evaluator on several national treatment studies for children and adolescents with anxiety disorders (including obsessive-compulsive disorder) and depression and has published articles on the treatment of childhood anger/aggression and children’s social development. He continues to teach undergraduate courses at Duke University in the Department of Psychology and Neuroscience. Dr. FitzGerald uses an evidence-based approach to treatment with a focus on cognitive-behavioral and behavioral therapy in a child’s family, academic, and social contexts. Outside of the office, he enjoys spending time with his wife and children, playing and coaching baseball, following college football, and playing guitar.

Alissa Wigdor, Ph.D.

Dr. Wigdor grew up in the DC Metro Area and attended the University of Maryland - College Park, where she graduated Summa cum Laude with a Bachelor of Science in Psychology in 2007. After graduating from college, Dr. Wigdor worked in a child development lab for two years at the University of Maryland, contributing to a longitudinal research project investigating the peer relationships of child and adolescents. Following her post-baccalaureate work, Dr. Wigdor attended Duke University and completed her Ph.D. in Clinical Psychology. Further, Dr. Wigdor completed her internship at Duke University Medical Center, with a focus in Pediatric Psychology. During her education and internship at Duke, Dr. Wigdor was trained in assessing and treating children, adolescents, young adults, families, and couples. She has also been trained in performing cognitive and psychoeducational assessments of children and adolescents, and conducted evaluations through the Pediatric Neuropsychology Service for three years. Following the completion of her internship, Dr. Wigdor remained at Duke University Medical Center as a Clinical Associate, and was engaged in numerous clinical and administrative roles, including clinical triage and care coordination for patients in Child Psychiatry and the Center for Autism and Brain Development. Dr. Wigdor believes in utilizing evidence-based treatment, and has been trained in cognitive behavioral therapy, dialectical behavior therapy, and emotion focused therapy. She has a particular interest in cognitive and psychoeducational assessment, as well as adolescent and young adult adjustment, including coping with anxiety and depression. She also enjoys family and couples therapy. Dr. Wigdor believes in collaborating with family, schools, and other providers in order to provide comprehensive care for individuals. She appreciates the difficulties involved in asking for help, and aims to provide a positive therapeutic experience with the goal of enhancing individual and family functioning. When she's not working, Dr. Wigdor enjoys spending time with her husband and their cats, friends, and family. She likes to read, travel, and volunteer at the animal shelter.