John J. Mariani

John J. Mariani, MD, currently serves as the Director of the Substance Treatment and Research Service at Columbia University Department of Psychiatry since October 2005 and has been operating a private psychiatry practice since 2004. Additionally, since January 2017, John J. Mariani, MD has acted as a Medical Advisor for the Major League Baseball Players Association. Educational qualifications include an Addiction Psychiatry Research Fellowship at Columbia University Vagelos College of Physicians and Surgeons, a Psychiatry Residency at Beth Israel Medical Center/Albert Einstein College of Medicine, and an MD from New York Medicine Jobs. John J. Mariani, MD also completed an OB/GYN residency at Mt Sinai School of Medicine and holds a BS in Biology from the University at Albany.