Grand Lake Mental Health Center
Grand Lake Mental Health Center is an addiction treatment facility at 998 East Knotts Avenue in Stillwater, Oklahoma, offering partial hospitalization or residential treatment, outpatient treatment, and opioid treatment medications, according to its SAMHSA FindTreatment.gov listing as of April 16, 2026. Payment options listed in the record include Cash or self-payment, Federal military insurance (e.g., TRICARE), Federal, or any government funding for substance use treatment programs, and Medicaid. The directory lists 844-458-2100 as the facility's phone number. All details on this page come from that federal record and should be confirmed directly with the facility.
998 East Knotts Avenue, Stillwater, OK, 74075
Contact & Location
Address: 998 East Knotts Avenue, Stillwater, OK, 74075
Phone: 844-458-2100
Website: https://www.grandmh.com
Services & Programs
Treatment Types
- Opioid Treatment Medications
- Outpatient
- Partial Hospitalization / Residential
Insurance & Payment
- Cash or self-payment
- Federal military insurance (e.g., TRICARE)
- Federal, or any government funding for substance use treatment programs
- Medicaid
- Medicare
- Private health insurance
Languages & Accessibility
- Sign language services for the deaf and hard of hearing
Other facilities in Stillwater
- Payne County Drug Court Inc
405-743-1968 - Grand Lake Mental Health Center Inc
844-458-2100
Other facilities in Oklahoma
- Grand Lake Mental Health Center
Perry, OK
844-458-2100 - Valley Hope of Cushing
Cushing, OK
918-225-1736 - Grand Lake Mental Health Center
Cleveland, OK
844-458-2100
View all Stillwater facilities →
Levels of care this record lists, across Oklahoma: Residential · Medication-Assisted Treatment · Outpatient · Partial Hospitalization (PHP)
Need Help Deciding?
Contact Grand Lake Mental Health Center directly at 844-458-2100, or call the SAMHSA National Helpline for free, confidential referrals 24/7.
SAMHSA Helpline: 1-800-662-HELP