We list 84 dual diagnosis treatment centers in Maine, based on SAMHSA's FindTreatment.gov data, with the most in Bangor (11), Portland (11), and Lewiston (7). Compare services, insurance accepted and accreditation, or call for free help choosing.
Dual Diagnosis: the basics
Dual diagnosis treatment is care for people who have both a substance use disorder and a mental health condition, such as depression, anxiety, PTSD or bipolar disorder. The best programs treat both conditions at the same time with one coordinated team, combining therapy, psychiatric care and, when needed, medication for addiction. 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 careCARF
Why it made our list: CARF accredited; offers detox, residential care, PHP, and IOP; accepts private insurance, Medicaid, and TRICARE.
Best for: Detox and residential careJoint Commission
Why it made our list: Joint Commission accredited; offers detox, residential care, IOP, and outpatient care; accepts private insurance, Medicaid, and self-pay.
Best for: Residential treatmentCARF
Why it made our list: CARF accredited; offers residential care, PHP, IOP, and outpatient care; accepts private insurance, Medicaid, and self-pay.
Best for: Supervised detoxJoint Commission
Why it made our list: Joint Commission accredited; offers detox, PHP, IOP, and outpatient care; accepts private insurance, Medicaid, and Medicare.
Best for: Supervised detoxJoint Commission
Why it made our list: Joint Commission accredited; offers detox, IOP, outpatient care, and MAT; accepts private insurance, Medicaid, and Medicare.
Best for: Intensive outpatient careJoint Commission
Why it made our list: Joint Commission accredited; offers IOP, outpatient care, and dual diagnosis care; accepts private insurance, Medicaid, and self-pay.
Best for: Intensive outpatient careCARF
Why it made our list: CARF accredited; offers IOP, outpatient care, 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, 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, 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, MAT, and dual diagnosis care; accepts private insurance, Medicaid, and Medicare.
Portland, ME 04101
CARF accredited
Levels of care
Payment accepted
Medicaid · Private insurance · TRICARE +1 more
“Get help” calls our free helpline, not this facility.
Portland, ME 04103
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Private insurance · Self-pay
“Get help” calls our free helpline, not this facility.
Lewiston, ME 04240
CARF accredited
Levels of care
Payment accepted
Medicaid · Private insurance · Self-pay
“Get help” calls our free helpline, not this facility.
Biddeford, ME 04005
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +2 more
“Get help” calls our free helpline, not this facility.
Brunswick, ME 04011
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +4 more
“Get help” calls our free helpline, not this facility.
Rockport, ME 04856
Joint Commission · NCQA accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +2 more
“Get help” calls our free helpline, not this facility.
South Portland, ME 04106
Joint Commission accredited
Levels of care
Payment accepted
Medicare · Private insurance · Self-pay
“Get help” calls our free helpline, not this facility.
Bangor, ME 04402
Levels of care
Payment accepted
Medicaid · Medicare · Self-pay +1 more
“Get help” calls our free helpline, not this facility.
Bangor, ME 04401
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +2 more
“Get help” calls our free helpline, not this facility.
Bangor, ME 04401
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Scarborough, ME 04074
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Gorham, ME 04038
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Portland, ME 04101
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Rumford, ME 04276
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Livermore Falls, ME 04254
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Ellsworth, ME 04605
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
South Portland, ME 04106
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Private insurance · Self-pay
“Get help” calls our free helpline, not this facility.
Westbrook, ME 04092
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +1 more
“Get help” calls our free helpline, not this facility.
Portland, ME 04102
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +4 more
“Get help” calls our free helpline, not this facility.
Waterville, ME 04901
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +2 more
“Get help” calls our free helpline, not this facility.
Lewiston, ME 04240
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +4 more
“Get help” calls our free helpline, not this facility.
Bangor, ME 04401
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +2 more
“Get help” calls our free helpline, not this facility.
Rockland, ME 04841
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Presque Isle, ME 04769
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Rumford, ME 04276
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +2 more
“Get help” calls our free helpline, not this facility.
South Portland, ME 04106
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +2 more
“Get help” calls our free helpline, not this facility.
Brunswick, ME 04011
CARF · COA accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +4 more
“Get help” calls our free helpline, not this facility.
Presque Isle, ME 04769
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +4 more
“Get help” calls our free helpline, not this facility.
Bangor, ME 04401
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Self-pay · Sliding scale
“Get help” calls our free helpline, not this facility.
Belfast, ME 04915
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Self-pay · Sliding scale
“Get help” calls our free helpline, not this facility.
We list 84 dual diagnosis treatment centers in Maine, based on SAMHSA's FindTreatment.gov data (updated October 2026).
The most listings are in Bangor (11), Portland (11), and Lewiston (7).
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.
