Thomas Hallinan, PhD
Dr. Thomas Hallinan is a Licensed Clinical Psychologist with a background in insight-oriented psychodynamic treatments and evidence-based cognitive behavioral treatments. He has a wealth of experience in treating trauma, depression, anxiety, difficulties with emotion regulation, and interpersonal problems.
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Dr. Hallinan completed his undergraduate degree at Loyola University New Orleans prior to earning his masters and doctoral degrees in clinical psychology at Duquesne University. He completed his internship and post-doctoral fellowship at the Southeast Louisiana Veterans Health Care System (New Orleans VA) with a focus on cognitive behavioral therapies and trauma work. Prior to joining Atlas, he continued to work in the general mental health clinic at the VA treating a wide range of diagnoses and psychological issues, as well as mentoring psychiatry residents, psychology interns, and post-doctoral fellows. Dr. Hallinan has experience and training in Acceptance and Commitment Therapy (ACT), Prolonged Exposure (PE), Cognitive Behavioral Therapy for Insomnia (CBT-I), and Dialectical Behavior Therapy (DBT).
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Outside of his clinical work, Dr. Hallinan enjoys attending cultural events in the city, spending time with his family, and staying current with new technology and gadgets.
Alexandra Sims, PhD
Alexandra Sims, Ph.D. is a licensed psychologist who specializes in educational and psychological assessment of children and adolescents. Her expertise lies in the diagnosis of ADHD, learning disorders, anxiety disorders, and stress and trauma-related reactions in children. Dr. Sims is adept at bridging assessment to meaningful intervention, providing families with insight into how to best support their children through the completion of clear and thorough written reports.
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Dr. Sims earned a master’s degree from New York University before pursuing her Ph.D. from Tulane University. While a student at Tulane, Dr. Sims was active in research, presenting original and collaborative research at local and national conferences. She graduated from Tulane with a specialization in trauma-focused school psychology. Dr. Sims has worked as a school psychologist at several elementary and secondary schools, and served as the Director of Pupil Appraisal and Evaluation at a local charter school for three years. Currently, Dr. Sims is a full-time faculty member at Tulane University, teaching courses on child development, psychopathology, and assessment. She is responsible for training doctoral students in cognitive and academic assessment and provides supervision for post-doctorate professionals seeking licensure. She also continues to work with local schools on the completion of special education evaluations. At Atlas Psychiatry, Dr. Sims provides assessment services for children and adolescents, including psychological testing, psycho-educational testing, gifted testing, and school admissions testing.