Skip to navigation Skip to content

Site Search

Physicians & Staff

Terry L. Horton, M.D., FACP

Chief, Division of Addiction Medicine; Medical Director, Project Engage

Terry L. Horton, M.D., FACP
Terry Horton, M.D., FACP, is the chief of Christiana Care’s Division of Addiction Medicine and an internationally-recognized authority on substance abuse. He is also medical director for Project Engage.
Dr. Horton joined Christiana Care in 2007 as the director of Consult Service at Wilmington Hospital. The next year, he helped launch Project Engage at Wilmington Hospital. This program embeds an outreach coordinator from Brandywine Counseling, a community-based counseling program, at the hospital to reach substance-addicted patients when they most need help and provide a clear pathway to treatment. Project Engage has drawn national attention for its innovative approach and success in reducing health care costs and utilization by reducing emergency room visits and hospital stays.
Also receiving national recognition, from the Institute for Healthcare Improvement, is the work of the Christiana Care Alcohol Withdrawal Working Group, which Dr. Horton chairs. This group develops and implements protocols for screening and treating hospital patients for alcohol withdrawal.
Dr. Horton is also an experienced teacher. In his role as an internal medicine faculty member, he trains Department of Medicine residents in inpatient and outpatient work. In addition, he works in the resident clinic, where he provides training about chronic pain management. He also teaches second- and third-year students at Jefferson Medical College of Thomas Jefferson University.
Prior to joining Christiana Care, Dr. Horton worked for 15 years as medical director and vice president of Phoenix House Foundation, the nation’s largest nonprofit company offering substance abuse treatment. His primary roles there were development of health services and serving as national spokesperson.
Dr. Horton’s areas of expertise include: addiction and primary care; addiction screening and interventions in primary care settings; detoxification programming and comorbidity. He is a frequent lecturer on these topics for Christiana Care staff as well as across the country and world. He has provided testimony before the U.S. House and Senate and lectured in Taiwan and Germany. He is regularly interviewed by the national press, including The New York Times and the Associated Press, and has appeared more than 40 times on local and national television and radio, including CBS News, ABC News and CNN. He has also published numerous articles and chapters.
Dr. Horton is involved in numerous professional organizations. His current activities include serving as: a national mentor for the Physician Clinical Support System; an executive committee member and national steering committee representative for the Delaware Valley Node of the National Institute on Drug Abuse, Clinical Trials Network; and a member of the Governor’s Advisory Counsel for the Delaware chapter of the American College of Physicians.
A 1983 graduate of Brown University, Dr. Horton went on to earn his medical degree from Jefferson Medical College in 1987. He was a resident in internal medicine at Beth Israel Hospital in New York. He is a diplomat for the American Board of Internal Medicine as well as a fellow for the American College of Physicians.
  • Internal Medicine
Practice: Internal Medicine Faculty Practice

Internal Medicine Faculty Practice
Wilmington Health Center
501 W. 14th Street, Room 5W60
Wilmington, DE 19801
302-428-2663 fax

  • Jefferson Medical College
  • Beth Israel Medical Center
Delaware Health Sciences Alliance CarePages Magnet recognition for excellence in nursing

Christiana Care is a private not-for-profit regional health care system and relies in part on the generosity of individuals, foundations and corporations to fulfill its mission. To learn more about how you can support our mission, please visit

Christiana Care Health System PO Box 1668, Wilmington, DE 19899 800-693-CARE