Locations
Keystone Substance
Abuse Services
Keystone’s facility locations are in the heart of Rock Hill, South Carolina and serve York County and surrounding communities.
Adult Outpatient and Inpatient Residential and Withdrawal Management Services
199 S. Herlong Avenue (Main Office)
Rock Hill, SC 29732
| Hours | Outpatient: Mon–Thurs 8 am – 9 pm, Fri 8 am – 5 pm |
| Inpatient: 24/7/365 | |
| Open Assessments | 8 am to 2 pm Monday, Tuesday, Wednesday, and 8 AM to 10 AM on Thursdays and Fridays. |
| Limited appointments are available at 5 pm on Tuesdays and Thursdays. These MUST be scheduled in advance. | |
| Phone | Outpatient: (803) 324-1800 |
| Inpatient: (803) 324-0404 | |
| After Hours and Emergency: (803) 324-0404 | |
| Fax | Outpatient: (803) 328-3831 |
| Inpatient: (803) 981-6982 |
Keystone Youth Center
1668 Herlong Ct
Rock Hill, SC 29732
| Hours | Mon–Thurs 8 am – 5 pm | ||
| Fri 8 am – 4 pm | |||
| Open Assessments | 8 am to 2 pm Monday, Tuesday, Wednesday, and 8 AM to 10 AM on Thursdays and Fridays. | ||
| Phone | (803) 323-6384 | ||
| Fax | (803) 328-2860 | ||
Keystone Prevention Center
1600 Ebenezer Rd
Rock Hill, SC 29732
| Hours | Mon–Thurs 8 am – 5 pm |
| Fri 8 am – 4 pm | |
| Phone | (803) 324-4118 |
| Fax | (803) 324-5179 |