Board-Certified Psychiatrist | PTSD & TBI Specialist | Veteran | Healthcare Law Expert | Bilingual (English​/​Spanish) About Dr. Casas Dr. John Casas is a board-certified psychiatrist with over 20 years of experience treating complex psychiatric conditions across diverse populations. His clinical expertise spans PTSD, traumatic brain injury, psychosis, substance use disorders, personality disorders, and ADHD. A decorated U.S. Army combat veteran, Dr. Casas served as Battalion and Brigade Surgeon during Operation Enduring Freedom and later held senior roles in the VA system, including Chief Psychiatrist for nationally recognized PTSD treatment programs. He completed his psychiatry residency at Baylor College of Medicine and holds a Master of Legal Studies in Healthcare Law from Texas A&M University. His academic contributions include supervising medical trainees, lecturing nationally on psychopharmacology, PTSD, and combat mental health, and co-authoring chapters in Oxford Press' Fundamentals of HIV Medicine. In addition to his clinical work, Dr. Casas is certified in ECT, ketamine therapy, and buprenorphine treatment, and currently practices in New York City. Fluent in both English and Spanish, he is passionate about mentoring, teaching, and advancing trauma-informed, veteran-focused mental health care. Areas of Expertise • PTSD, Military Trauma & MST • Traumatic Brain Injury (TBI) • Emergency Psychiatry & Crisis Management • Complex Mood & Psychotic Disorders • Substance Use Disorders (Buprenorphine Certified) • Legal & Ethical Considerations in Mental Health • Bilingual Patient Care (English & Spanish) • Certified in ECT, Ketamine Therapy, and MAT (Buprenorphine) Military Honors & Awards A decorated U.S. Army combat veteran, Dr. Casas served as Battalion and Brigade Surgeon during Operation Enduring Freedom and later held senior roles in the VA system, including Chief Psychiatrist for nationally recognized PTSD treatment programs. Teaching & Leadership • Distinguished Teacher Award, Albany Medical College • Assistant Professor, Albany Medical College • Supervising Faculty, Baylor College of Medicine, Northwell Zucker Hillside Hospital • Former Chief, VA Outpatient Psychiatry Services With a strong sense of mission and deep clinical insight, Dr. Casas is a valued collaborator for NPs​/​PAs and healthcare teams working with complex psychiatric and trauma-related conditions.

Board Certifications

Psychiatry