About Rimrock Foundation

Rimrock is nestled in the heart of the healthcare corridor in Billings.

We are the largest treatment center in the region, providing rehab services for adults with substance use and co-occurring disorders. Rimrock views addiction as a whole person illness affecting an individual’s emotional, physical, spiritual and social well-being. Our program is designed to help people find a balance in their life.

Rimrock offers a variety of services, including:
Inpatient Rehab
Day Treatment
Outpatient Services
Family Therapy
Chemical Dependency Assessments
DUI School
Medical Detoxification
Long Term Residential for Mothers with Children
Re-Entry Programs
Adolescent Programs

What We Treat
Substance Use Disorders
Gambling disorder
Sexual Addiction
Co-Occurring Disorders

We create opportunity for those impacted by the chaos of addiction and mental illness through innovative, compassionate and life changing care.


Sunday: Closed
Monday: 8:00 am - 5:00 pm
Tuesday: 8:00 am - 5:00 pm
Wednesday: 8:00 am - 5:00 pm
Thursday: 8:00 am - 5:00 pm
Friday: 8:00 am - 5:00 pm
Saturday: Closed