We list 55 dual diagnosis treatment centers in New Hampshire, based on SAMHSA's FindTreatment.gov data, with the most in Nashua (10), Manchester (10), and Plymouth (3). 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 careJoint Commission
Why it made our list: Joint Commission accredited; offers detox, residential care, PHP, and IOP; accepts private insurance, Medicaid, and self-pay.
Best for: Intensive outpatient careJoint Commission
Why it made our list: Joint Commission accredited; offers PHP, IOP, outpatient care, and MAT; accepts private insurance, Medicare, and TRICARE.
Best for: Private-pay residential careJoint Commission
Why it made our list: Joint Commission accredited; offers detox, residential care, IOP, and outpatient care; accepts private insurance, TRICARE, and self-pay.
Best for: Private-pay residential careJoint Commission
Why it made our list: Joint Commission accredited; offers detox, residential care, PHP, and MAT; accepts private insurance 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 TRICARE.
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: Intensive outpatient careJoint Commission
Why it made our list: Joint Commission accredited; offers PHP, IOP, outpatient care, and MAT; accepts private insurance, Medicaid, and self-pay.
Best for: Intensive outpatient careJoint Commission
Why it made our list: Joint Commission accredited; offers PHP, IOP, outpatient care, and MAT; accepts private insurance and self-pay.
Best for: Intensive outpatient careJoint Commission
Why it made our list: Joint Commission accredited; offers PHP, IOP, outpatient care, and MAT; accepts private insurance, Medicaid, and TRICARE.
Best for: Intensive outpatient careJoint Commission
Why it made our list: Joint Commission accredited; offers PHP, IOP, outpatient care, and MAT; accepts private insurance, TRICARE, and self-pay.
Dublin, NH 03444
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Private insurance · Self-pay +1 more
“Get help” calls our free helpline, not this facility.
Plymouth, NH 03264
Joint Commission accredited
Levels of care
Payment accepted
Private insurance · Self-pay
“Get help” calls our free helpline, not this facility.
Derry, NH 03038
Joint Commission accredited
Levels of care
Payment accepted
Private insurance · TRICARE · Self-pay
“Get help” calls our free helpline, not this facility.
Bethlehem, NH 03574
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Private insurance · TRICARE +1 more
“Get help” calls our free helpline, not this facility.
Concord, NH 03301
Joint Commission accredited
Levels of care
Payment accepted
Private insurance · TRICARE · Self-pay +1 more
“Get help” calls our free helpline, not this facility.
Hudson, NH 03051
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +2 more
“Get help” calls our free helpline, not this facility.
Nashua, NH 03060
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Private insurance · TRICARE +1 more
“Get help” calls our free helpline, not this facility.
Canterbury, NH 03224
CARF accredited
Levels of care
Payment accepted
Medicaid · Private insurance · Self-pay
“Get help” calls our free helpline, not this facility.
West Lebanon, NH 03784
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Nashua, NH 03063
CARF accredited
Levels of care
Payment accepted
Medicaid · Private insurance · TRICARE +1 more
“Get help” calls our free helpline, not this facility.
Salem, NH 03079
Joint Commission · CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +1 more
“Get help” calls our free helpline, not this facility.
Portsmouth, NH 03801
Joint Commission accredited
Levels of care
Payment accepted
Medicare · Private insurance · Self-pay
“Get help” calls our free helpline, not this facility.
West Lebanon, NH 03784
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Portsmouth, NH 03801
Joint Commission accredited
Levels of care
Payment accepted
Private insurance · TRICARE · Self-pay
“Get help” calls our free helpline, not this facility.
Londonderry, NH 03053
Joint Commission accredited
Levels of care
Payment accepted
Medicare · Private insurance · TRICARE +2 more
“Get help” calls our free helpline, not this facility.
Concord, NH 03301
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Nashua, NH 03063
CARF accredited
Levels of care
Payment accepted
Medicaid · Self-pay
“Get help” calls our free helpline, not this facility.
Nashua, NH 03060
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Private insurance · TRICARE +1 more
“Get help” calls our free helpline, not this facility.
Salem, NH 03079
Joint Commission accredited
Levels of care
Payment accepted
Private insurance · Self-pay
“Get help” calls our free helpline, not this facility.
Nashua, NH 03060
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Manchester, NH 03103
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Lebanon, NH 03766
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Rochester, NH 03867
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Manchester, NH 03103
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Salem, NH 03079
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Private insurance · Self-pay
“Get help” calls our free helpline, not this facility.
Manchester, NH 03104
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Private insurance · TRICARE +1 more
“Get help” calls our free helpline, not this facility.
Nashua, NH 03063
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Private insurance · TRICARE +1 more
“Get help” calls our free helpline, not this facility.
Nashua, NH 03060
NCQA accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +4 more
“Get help” calls our free helpline, not this facility.
Rochester, NH 03867
Levels of care
Payment accepted
Medicaid · Private insurance · Self-pay +2 more
“Get help” calls our free helpline, not this facility.
Littleton, NH 03561
Joint Commission · CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +1 more
“Get help” calls our free helpline, not this facility.
We list 55 dual diagnosis treatment centers in New Hampshire, based on SAMHSA's FindTreatment.gov data (updated October 2026).
The most listings are in Nashua (10), Manchester (10), and Plymouth (3).
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.
