Verified Treatment Center
Keystone Substance Abuse Services
Rock Hill, SC · 29732
Key Takeaways for Keystone Substance Abuse Services
- • Detox · Inpatient · IOP · MAT offered
- • Accepts Medicaid, Private insurance
- • SAMHSA-listed facility
- • Direct line available · Helpline free & confidential 24/7
About Keystone Substance Abuse Services
Keystone Substance Abuse Services sits in Rock Hill, SC, one of the many SAMHSA-registered addiction-treatment facilities across SC. The facility offers a continuum of care across multiple levels — Detox, Inpatient, IOP, MAT — which means it can, in principle, hold a patient across the arc of a typical treatment episode. The interesting questions about any specific program are rarely the ones its website answers.
Care levels at Keystone Substance Abuse Services
What Keystone Substance Abuse Services offers: The facility offers a continuum of care across multiple levels — Detox, Inpatient, IOP, MAT — which means it can, in principle, hold a patient across the arc of a typical treatment episode. The practical question is whether it is genuinely strong at each level, or whether one level is the core business and the others are secondary. What matters is whether that matches the specific clinical picture, which only a proper assessment can tell. Most mismatches happen when the assessment is skipped or done inside the facility with a commercial interest in admission.
Insurance and payment
Keystone Substance Abuse Services accepts both Medicaid and commercial insurance, which is the broadest payer profile and typically correlates with programs that operate at scale across the economic spectrum. The insurance problem is almost never that treatment is uncovered — it is that the specific admission was authorized under different terms than the ones in the benefit summary. Get the Verification of Benefits in writing; everything else follows from that one move.
Specialty programming
The facility's documented specialty programming includes: Adolescents, Young adults, Adult women. A facility's specialty designation is a starting filter, not an endorsement. The operational questions (who leads it, how many hours per week, what credentials) are where the actual answer lives.
Before you call
The facility's documented pharmacotherapy offerings suggest MAT is available — confirm the specific medications and prescriber access during the admissions conversation. Before admission, pin down the three operational questions in writing: level of care, insurance, medication policy. The difference between a well-run program and a problematic one usually shows up in how quickly and directly those three are answered.
Listing sourced from the SAMHSA Behavioral Health Treatment Services Locator. Data last synced April 2026. Verify current programs directly with the facility.
Keystone Substance Abuse Services at a Glance
Levels of care
Detox · Inpatient · IOP · MAT
Service settings
Hospital inpatient/24-hour hospital inpatient, Outpatient, Residential/24-hour residential, Hospital inpatient detoxification, Intensive outpatient treatment, Outpatient methadone/buprenorphine or naltrexone treatment, Regular outpatient treatment, Residential detoxification, Short-term residential
Therapy approaches
Anger management, Brief intervention, Cognitive behavioral therapy, Contingency management/motivational incentives, Motivational interviewing, Matrix Model
Age groups
Children/Adolescents
Special populations
Adolescents, Young adults, Adult women, Pregnant/postpartum women, Adult men, Clients with co-occurring mental and substance use disorders
Medications
Acamprosate (Campral®), Disulfiram, Buprenorphine with naloxone, Buprenorphine without naloxone, Buprenorphine (extended-release, injectable), Naltrexone (oral)
Insurance & Payment Accepted
Confirm in-network status before admission — verification is free.
Contact & Location
Address
199 South Herlong Avenue, Rock Hill, SC 29732
Facility direct line
803-324-1800Website
www.keystoneyork.orgQuestions about this facility
Common questions about Keystone Substance Abuse Services
Answered from public sources: SAMHSA listings, federal parity regulations, and our own admissions helpline intake notes.
Is Keystone Substance Abuse Services listed in the SAMHSA Treatment Services Locator?
What insurance does Keystone Substance Abuse Services accept?
How do I know if this level of care is right for me?
Is calling confidential? Will my employer find out?
What happens if I call the helpline instead of the facility?
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