Dr. Kate McGraw

Division Chief

Dr. Kate McGraw is a clinical psychologist who currently serves as the division chief of the Psychological Health Center of Excellence (PHCoE). Previously, she served as senior research and evaluation advisor with the President’s Roadmap to Empower Veterans and End the National Tragedy of Suicide (PREVENTS) Office, detailed from the Department of Defense. Prior to this role, she was the acting division chief and deputy division chief of PHCoE. Her work since 2011 has informed a variety of DoD psychological health policy, research, implementation, and treatment gaps, especially in areas related to mental health needs of military and veteran women, service members who disclose sexual assault, ostracism, implementation science, and global behavioral health.

McGraw’s active duty military experience included serving as one of the first female U.S. Air Force intercontinental ballistic missile launch officers. She also served as aerospace psychologist for the Euro-NATO Joint Jet Pilot Training Program, and was chief of the deployed team that provided operational mental health support for the DoD Port Mortuary during the September 11, 2001, terrorist attacks and the Space Shuttle Columbia disaster.

McGraw received her Ph.D. in clinical psychology from the University of Texas Southwestern (UTSW) Medical Center at Dallas. She was also Distinguished Graduate, USAF Officer Training School, and Distinguished Graduate, ICBM Missile Combat Crew Initial Qualification Training School.

Her personal decorations include Joint Meritorious Service Award, Joint Service Commendation Medal (two awards), the National Defense Service Medal, the Meritorious Service Medal (two awards), and the Air Force Commendation Medal.

Dr. Timothy Hoyt

Deputy Division Chief

Dr. Timothy Hoyt is the deputy division chief for PHCoE. He is also chief of PHCoE’s Psychological Health Promotion Branch.

Dr. Hoyt was commissioned as an officer in the Medical Service Corps of the U. S. Army in 2007.  He left active duty in 2014 to become a civilian supervisor and faculty member at Madigan Army Medical Center. Dr. Hoyt has held numerous leadership positions within military medicine, including serving as a brigade surgeon, chief psychology resident, embedded behavioral health clinic chief, director of the Pinnacle Intensive Outpatient Program for PTSD, and director of the National Center for Telehealth and Technology. As a military psychologist, he has authored numerous empirical publications on combat-related stress and posttraumatic stress disorder.

Dr. Hoyt is a recipient of the Bronze Star for his service in Afghanistan, as well as the Peter J.N. Linnerooth National Service Award from the American Psychological Association. He is a superior graduate of the U.S. Army War College, and received his Ph.D. in clinical psychology from the University of New Mexico.

Mr. Dennis Brown

Branch Chief, Administration & Operations

Mr. Dennis Brown is PHCoE’s Administration and Operations Branch Chief. Mr. Brown had a very distinguished military career which culminated with his retirement as a colonel from the U.S. Army in February 2015. During his time in the military, he held several command and staff positions including force health protection officer in Croatia as part of Joint Task Force Provide Promise (Forward) under the United Nations Protection Force; commander of the 38th Medical Detachment in Korea; commander of the U.S. Army Center for Health Promotion and Preventive Medicine - North at Fort Meade, Maryland; commander of the Joint Technical Augmentation Cell at Fort Monroe, Virginia; deputy surgeon at U.S. Army Central/3rd Army in Atlanta, Georgia; and chief of staff of the U.S. Army Public Health Command. In addition, Mr. Brown was a senior service college fellow at the Department of Health and Human Services headquarters in Washington, D.C.

Mr. Brown received his bachelor’s degree in biology from Rutgers University-Camden, master’s degree in health care administration from Central Michigan University and master’s degree in environmental health engineering from the University of Texas

Mr. Brown’s military awards include a Legion of Merit, Defense Meritorious Service Medal, Meritorious Service Medal (four oak leaf clusters), Joint Service Commendation Medal, Army Commendation Medal (two oak leaf clusters), Joint Service Achievement Medal, United Nations Medal, North Atlantic Treaty Organization Medal and the Air Assault Badge.