Peter Thomas, Ph.D.


Dr. Thomas is part of the Holiner Psychiatric Group founded by Doctor Joel Holiner in 1983, The Holiner Psychiatric Group has been honored to serve the DFW metroplex for nearly three decades. Dr. Holiner is board certified by the American Board of Psychiatry & Neurology and specializes in addiction psychiatry. Our office is a full-service practice committed to providing high-quality inpatient and outpatient services for children, adolescents, adults and seniors. Our clinical and support staff is dedicated to providing our patients with a positive and helpful experience with their medical care.


Dr. Thomas is the psychologist for the McKinney branch of the Holiner Group. He works directly with psychaitrist Aditya Sharma, M.D., Nurse practitioners Madoka Lightfoot, PMHNP, and Viki Terry, PMHNP. If needed, the McKinney office can also meet medication needs as well and your psychological needs.



Licensed Psychologist in the State of Texas