Substance Use Treatment in Stillwater, OK

Grand Lake Mental Health Center

What Does Grand Lake Mental Health Center Offer?

Grand Lake Mental Health Center is a substance use treatment facility at 998 East Knotts Avenue, Stillwater, Oklahoma, offering intensive outpatient and outpatient treatment. It accepts Medicaid, Medicare, private insurance, TRICARE, state-financed insurance and self-pay. Medication treatment: buprenorphine and naltrexone.

Reviewed by Michael Rupe ·October 2, 2026

998 East Knotts Avenue
Stillwater, OK 74075

Listed in SAMHSA's FindTreatment.gov, checked October 2026. A listing is not an endorsement. Call to confirm services, openings and costs before you go.

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Treatment facility (SAMHSA listing)This facility

Types of Care at Grand Lake Mental Health Center

Outpatient
Intensive outpatient treatment
Outpatient methadone/buprenorphine or naltrexone treatment
Regular outpatient treatment

Payment, Insurance and Help Paying

Federal, or any government funding for substance use treatment programs
Medicare
Medicaid
Federal military insurance (e.g., TRICARE)
Private health insurance
Cash or self-payment
State-financed health insurance plan other than Medicaid

Medication Treatment

Buprenorphine maintenance
Prescribes buprenorphine
Prescribes naltrexone
Buprenorphine with naloxone
Naltrexone (oral)

Who the Program Serves

Adolescents
Young adults
Adult women
Pregnant/postpartum women
Adult men
Seniors or older adults
Veterans
Active duty military
Members of military families
Criminal justice (other than DUI/DWI)/Forensic clients
Clients with co-occurring mental and substance use disorders
Clients with co-occurring pain and substance use disorders
Clients with HIV or AIDS
Clients who have experienced sexual abuse
Clients who have experienced intimate partner violence, domestic violence
Clients who have experienced trauma
Ages: Children/Adolescents
Ages: Young Adults
Ages: Seniors
Accepts: Female
Accepts: Male

Language Services

Sign language services for the deaf and hard of hearing

Licensing and Accreditation

State substance use treatment agency
State mental health department
Commission on Accreditation of Rehabilitation Facilities (CARF)

Treatment Approaches

Brief intervention
Cognitive behavioral therapy
Motivational interviewing
Matrix Model
Relapse prevention
Substance use disorder counseling
Trauma-related counseling
Telemedicine/telehealth therapy

Assessment, Recovery Support and Other Services

Comprehensive mental health assessment
Comprehensive substance use assessment
Interim services for clients
Outreach to persons in the community
Complete medical history/physical exam
Screening for tobacco use
Screening for substance use
Screening for mental disorders
Professional interventionist/educational consultant
Aftercare/continuing care
Discharge Planning
Naloxone and overdose education
Outcome follow-up after discharge
Housing services
Assistance with obtaining social services
Recovery coach
Mentoring/peer support
Employment counseling or training
Case management service
Domestic violence services, including family or partner
Mental health services
Social skills development
Transportation assistance
Integrated primary care services
Suicide prevention services
Drug or alcohol urine screening
TB screening
Metabolic syndrome monitoring
Testing for Hepatitis B (HBV)
Testing for Hepatitis C (HCV)
Treatment for gambling disorder
Treatment for other addiction disorder

Before you commit, confirm openings, costs and the program's state license. How to choose a rehab you can trust lists the questions to ask when you call, and addiction treatment in Oklahoma lists the state's treatment agency.