Christopher Welsh’s main area of clinical work is in addiction and dual diagnosis. He is board certified in general and addiction psychiatry. He works in various inpatient and outpatient settings, including methadone and buprenorphine maintenance. Additionally, Welsh is the medical director of the UMMC Substance Abuse Consultation Service, which is responsible for substance abuse assessment and intervention with patients throughout the University of Maryland Medical Center. He has also worked with the Baltimore City and the Maryland State Department of Health on the needle-exchange and opioid overdose prevention projects. He also works with impaired healthcare professionals and is the chairman of the University of Maryland Medical Center’s Professional Assistance Program. Welsh is also the medical director of the Maryland Center of Excellence on Problem Gambling.