199 South Herlong Avenue, Rock Hill, SC 29732
Our 10-point score combines licensing and accreditation, the levels of care and payment options this facility reports, and patient ratings from Google and StartDrugRehab.com reviewers. Paid or claimed listings never change a score. Read full methodology
Patient ratings use 38 Google reviews (3.0★), weighted toward a 4.0 average until there are enough reviews to be reliable.
Located at 199 South Herlong Avenue in Rock Hill, South Carolina, Keystone Behavioral Health is a nonprofit addiction treatment program.
Care options include medically supervised detox, residential (inpatient) treatment, hospital inpatient care, intensive outpatient (IOP), standard outpatient counseling, medication-assisted treatment (MAT), co-occurring (dual diagnosis) mental health treatment, and telehealth therapy. Clinicians use approaches such as anger management, brief intervention, cognitive behavioral therapy, contingency management/motivational incentives, and motivational interviewing. For opioid use disorder, the program uses buprenorphine and naltrexone. It also prescribes medication for alcohol use disorder.
Payment options include government funding for people who qualify, IHS/tribal/urban (ITU) funds, Medicaid, private health insurance, and cash or self-payment. A sliding fee scale based on income is available. Coverage depends on your specific plan, so verify benefits before admission.
The program accepts children and adolescents, young adults, adults, and seniors. It offers specialized groups for adolescents, young adults, women, pregnant/postpartum women, and men.
Keystone Behavioral Health is accredited by CARF and licensed or certified by the state substance use treatment agency and state department of health.
Payment assistance (check with facility for details) · Sliding fee scale (fee is based on income and other factors)
Based on SAMHSA-listed programs in our directory. Rankings use the StartDrugRehab Score; facilities can't pay to change them. Distances are straight-line.
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| Licensing & accreditation | State substance use treatment agency, State department of health, Commission on Accreditation of Rehabilitation Facilities (CARF) |
|---|---|
| Ages accepted | Children/Adolescents, Young Adults, Adults, Seniors |
| Operated by | Private non-profit organization |
| Exclusive services | Specially designed program for DUI/DWI clients |
York County, SC has 3 SAMHSA-listed addiction treatment facilities for 303,001 residents. Keystone Behavioral Health is the only listed detox program in the county. It is one of 3 listed providers of buprenorphine or methadone treatment in the county. 74 people died of a drug overdose in the county in the 12 months to March 2026 (CDC provisional data): 24.4 per 100,000 residents, compared with 22.7 statewide.
Source: StartDrugRehab Treatment Deserts 2026, built from SAMHSA FindTreatment.gov, U.S. Census 2024 population estimates and CDC overdose data. Counts are SAMHSA-listed facilities only.
Keystone Behavioral Health lists the following levels of care: detox, inpatient / residential, hospital inpatient, intensive outpatient (IOP), outpatient, medication-assisted treatment (MAT), dual diagnosis, and telehealth. Services can change, so confirm current programs before admission.
According to SAMHSA data, Keystone Behavioral Health accepts federal, or any government funding for substance use treatment programs, ihs/tribal/urban (itu) funds, medicaid, private health insurance, cash or self-payment, and samhsa funding/block grants. Your exact coverage depends on your plan and network status. You can check your benefits with your insurer, or call (833) 589-6933 for a free benefits check.
Yes. Keystone Behavioral Health provides detoxification (medically supervised withdrawal) services, including alcohol detoxification, benzodiazepines detoxification, cocaine detoxification, methamphetamines detoxification, and opioids detoxification.
Yes. Keystone Behavioral Health reports accreditation from CARF. Accreditation means the facility meets independent quality and safety standards.
Keystone Behavioral Health accepts children/adolescents, young adults, adults, and seniors. Specialized groups include adolescents, young adults, adult women, pregnant/postpartum women, and adult men.
York County, SC has 3 SAMHSA-listed treatment facilities for about 303,001 residents: 1 list detox services, 3 offer buprenorphine or methadone treatment and 1 offer 24-hour care (2026 data).
The nearest other SAMHSA-listed programs are Oxford House Timeless (Rock Hill, 2.5 miles), Oxford House Belle Ame (Rock Hill, 2.6 miles), and Oxford House Crawford (Rock Hill, 2.6 miles). Distances are straight-line.
Keystone Behavioral Health has a 3.0-star rating from 38 Google reviews (as of November 2026). Ratings reflect individual experiences and are not a measure of clinical quality.
Admission usually starts with a phone screening and insurance check, followed by an assessment. You can contact Keystone Behavioral Health directly at 803-324-1800. Our admissions helpline at (833) 589-6933 can connect you with a licensed treatment provider, which may not be Keystone Behavioral Health. Our helpline is not affiliated with Keystone Behavioral Health.
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Source: SAMHSA FindTreatment.gov, data updated October 2026. Facilities report this information to SAMHSA, and it can change, so confirm details before admission. Logo courtesy of keystoneyork.org. A listing is not an endorsement. StartDrugRehab.com is not affiliated with Keystone Behavioral Health.
