As of June 2025, BHDD OIDD, OMH and OSUS headquarters are co-located at the State of South Carolina Health Campus with the South Carolina Department of Public Health, allowing for closer collaboration between the two cabinet agencies. The state’s health campus is located at 400 Otarre Parkway in Cayce.
BHDD OIDD, OMH, and OSUS do not provide direct services at the State of South Carolina Health Campus.
The South Carolina Department of Behavioral Health and Developmental Disabilities Office of Intellectual and Developmental Disabilities (BHDD OIDD), formerly the Department of Disabilities and Special Needs, provides services to children and adults with severe, lifelong disabilities.
All BHDD OIDD affiliated phone numbers remain the same.
Main Phone Number: 803-898-9600
Toll Free: 1-888-DSN-INFO (1-888-376-4636)
Apply for Services: 800-289-7012
The mailing addresses for BHDD OIDD have been updated and are provided below.
Accounts Receivable
BHDD Office of Intellectual and Developmental Disabilities
400 Otarre Parkway
Building E
Cayce, SC 29033
Include specific area/office
BHDD Office of Intellectual and Developmental Disabilities
400 Otarre Parkway
Building E
Cayce, SC 29033
Include specific area/office
BHDD Office of Intellectual and Developmental Disabilities
Building E Loading Dock
400 Otarre Parkway
Cayce, SC 29033
The South Carolina Department of Behavioral Health and Developmental Disabilities Office of Mental Health (BHDD OMH), formerly the Department of Mental Health, serves as the state’s public mental health provider.
All BHDD OMH affiliated phone numbers remain the same.
Main Phone Number: 803-898-8581
The mailing addresses for BHDD OMH have been updated and are provided below.
Business Office
BHDD Office of Mental Health
PO Box 485
Columbia, SC, 29202
Include specific area/office
BHDD Office of Mental Health
PO Box 485
Columbia, SC, 29202
Include specific area/office
BHDD Office of Mental Health
Building E Loading Dock
400 Otarre Parkway
Cayce, SC 29033
The Department of Behavioral Health and Developmental Disabilities Office of Substance Use Services (BHDD OSUS), formerly the Department of Alcohol and Other Drug Abuse Services, is charged with ensuring quality services to prevent or reduce the negative consequences of substance use and addictions through a statewide system of local organizations that provide prevention, treatment and recovery services.
All BHDD OSUS affiliated phone numbers remain the same.
Main Phone Number: 803-896-5555
The shipping addresses for BHDD OSUS has been updated and are provided below.
Accounts Receivable
BHDD Office of Substance Use Services
PO Box 8268
Columbia, SC 29202
Include specific area/office/recipient
BHDD Office of Substance Use Services
PO Box 8268
Columbia, SC 29202
Include specific area/office/recipient
BHDD Office of Substance Use Services
Building E Loading Dock
400 Otarre Parkway
Cayce, SC 29033
