We list 65 rehabs that accept private insurance in Montana, based on SAMHSA's FindTreatment.gov data, with the most in Billings (8), Missoula (6), and Helena (5). Compare services, insurance accepted and accreditation, or call for free help choosing.
Private Insurance: the basics
Yes, most private health insurance plans cover addiction treatment. The Affordable Care Act lists substance use disorder services as an essential health benefit for individual and small-group plans, and federal parity law limits stricter rules for addiction care. What you pay depends on your plan, network, deductible and whether treatment is medically necessary. Read the full guide →
2026 rankings
Ranked by the StartDrugRehab Score: accreditation, levels of care, patient ratings and payment options. Featured or claimed status never affects rank. How we rank
Best for: Detox and residential careJoint CommissionNCQA
Why it made our list: Joint Commission and NCQA accredited; offers detox, residential care, outpatient care, and MAT; accepts private insurance, Medicaid, and self-pay.
Best for: Detox and residential careCARF
Why it made our list: CARF accredited; offers detox, residential care, PHP, and IOP; accepts private insurance, Medicaid, and TRICARE.
Best for: Intensive outpatient careCARFCOA
Why it made our list: CARF and COA accredited; offers IOP, outpatient care, MAT, and dual diagnosis care; accepts private insurance, Medicaid, and Medicare.
Best for: Intensive outpatient careJoint Commission
Why it made our list: Joint Commission accredited; offers IOP, outpatient care, MAT, and dual diagnosis care; accepts private insurance, Medicaid, and TRICARE.
Best for: Private-pay residential careJoint Commission
Why it made our list: Joint Commission accredited; offers detox, residential care, MAT, and dual diagnosis care; accepts private insurance and self-pay.
Best for: Supervised detoxJoint Commission
Why it made our list: Joint Commission accredited; offers detox, MAT, and dual diagnosis care; accepts private insurance, Medicaid, and Medicare.
Best for: Methadone treatmentCARF
Why it made our list: CARF accredited; offers outpatient care and MAT; accepts private insurance, Medicaid, and Medicare.
Best for: Supervised detox
Why it made our list: Offers detox, IOP, outpatient care, and MAT; accepts private insurance, Medicaid, and TRICARE.
Best for: Intensive outpatient care
Why it made our list: Offers PHP, IOP, outpatient care, and MAT; accepts private insurance, Medicaid, and Medicare.
Best for: Supervised detoxNCQA
Why it made our list: NCQA accredited; offers detox, outpatient care, MAT, and dual diagnosis care; accepts private insurance, Medicaid, and Medicare.
Billings, MT 59101
CARF accredited
Levels of care
Payment accepted
Medicaid · Private insurance · TRICARE +2 more
“Get help” calls our free helpline, not this facility.
Helena, MT 59602
Joint Commission · NCQA accredited
Levels of care
Payment accepted
Medicaid · Private insurance · Self-pay +1 more
“Get help” calls our free helpline, not this facility.
Great Falls, MT 59401
Joint Commission accredited
Levels of care
Payment accepted
Private insurance · Self-pay
“Get help” calls our free helpline, not this facility.
Missoula, MT 59802
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Butte, MT 59701
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Billings, MT 59102
CARF · COA accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Troy, MT 59935
Joint Commission accredited
Levels of care
Payment accepted
Private insurance · TRICARE · Self-pay
“Get help” calls our free helpline, not this facility.
Kalispell, MT 59901
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Private insurance · TRICARE +1 more
“Get help” calls our free helpline, not this facility.
Billings, MT 59102
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +2 more
“Get help” calls our free helpline, not this facility.
Belgrade, MT 59714
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +2 more
“Get help” calls our free helpline, not this facility.
Kalispell, MT 59901
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +2 more
“Get help” calls our free helpline, not this facility.
Missoula, MT 59801
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +2 more
“Get help” calls our free helpline, not this facility.
Helena, MT 59601
Levels of care
Payment accepted
Medicaid · Private insurance · TRICARE +2 more
“Get help” calls our free helpline, not this facility.
Great Falls, MT 59401
Levels of care
Payment accepted
Medicaid · Private insurance · TRICARE +3 more
“Get help” calls our free helpline, not this facility.
Livingston, MT 59047
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +4 more
“Get help” calls our free helpline, not this facility.
Helena, MT 59624
Levels of care
Payment accepted
Medicaid · Private insurance · TRICARE +2 more
“Get help” calls our free helpline, not this facility.
Bozeman, MT 59715
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +2 more
“Get help” calls our free helpline, not this facility.
Havre, MT 59501
NCQA accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +4 more
“Get help” calls our free helpline, not this facility.
Livingston, MT 59047
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +4 more
“Get help” calls our free helpline, not this facility.
Martin City, MT 59926
Levels of care
Payment accepted
Medicaid · Private insurance · Self-pay
“Get help” calls our free helpline, not this facility.
Columbia Falls, MT 59912
Levels of care
Payment accepted
Medicaid · Private insurance · Self-pay
“Get help” calls our free helpline, not this facility.
Great Falls, MT 59405
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +2 more
“Get help” calls our free helpline, not this facility.
Billings, MT 59101
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Billings, MT 59102
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +4 more
“Get help” calls our free helpline, not this facility.
Helena, MT 59601
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +4 more
“Get help” calls our free helpline, not this facility.
Superior, MT 59872
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +2 more
“Get help” calls our free helpline, not this facility.
Forsyth, MT 59327
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +2 more
“Get help” calls our free helpline, not this facility.
Great Falls, MT 59401
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Kalispell, MT 59901
Levels of care
Payment accepted
Medicaid · Private insurance · TRICARE +3 more
“Get help” calls our free helpline, not this facility.
Box Elder, MT 59521
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance
“Get help” calls our free helpline, not this facility.
We list 65 rehabs that accept private insurance in Montana, based on SAMHSA's FindTreatment.gov data (updated October 2026).
The most listings are in Billings (8), Missoula (6), and Helena (5).
Look for state licensing and accreditation (The Joint Commission or CARF), the right level of care for your needs, evidence-based therapies, and insurance compatibility. Read our guide to choosing a rehab or call (833) 589-6933 to talk it through.
Most private plans and Medicaid cover substance use treatment when it's medically necessary, but benefits vary by plan and network. Call (833) 589-6933 for a free, confidential benefits check.
Source: SAMHSA FindTreatment.gov, data updated October 2026. Listings are not endorsements.
