Dr. Geoffrey Sinner
joined the Retreat in 2011 as a staff psychiatrist on the Retreat’s general inpatient psychiatric unit for adults. He is currently the Unit Chief on the Adult Intensive Program
Dr. Sinner holds a bachelors degree in psychology from Rutgers University and a medical degree from the University of Connecticut School of Medicine. He completed a residency in general psychiatry at Dartmouth-Hitchcock Medical Center. He is Board Certified in Psychiatry.
Dr. Sinner is also a member of the American Psychiatric Association and Psi Chi, The National Honor Society in Psychology.