We list 211 intensive outpatient programs in Maryland, based on SAMHSA's FindTreatment.gov data, with the most in Baltimore (57), Hagerstown (8), and Frederick (8). Compare services, insurance accepted and accreditation, or call for free help choosing.
Intensive Outpatient (IOP): the basics
An intensive outpatient program (IOP) is addiction treatment that meets several times a week for a few hours at a time while you live at home. Adult programs commonly provide about 9 to 19 hours of therapy a week, often for several weeks to a few months. IOP fits people who need more than weekly counseling but not 24-hour care. 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 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 Medicare.
Best for: Supervised detoxCARF
Why it made our list: CARF accredited; offers detox, PHP, IOP, and outpatient care; accepts private insurance, Medicaid, and Medicare.
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 Medicare.
Best for: Private-pay residential careJoint Commission
Why it made our list: Joint Commission accredited; offers detox, residential care, PHP, and IOP; accepts private insurance 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 Medicare.
Best for: Intensive outpatient careCARF
Why it made our list: CARF accredited; offers PHP, IOP, outpatient care, and MAT; accepts private insurance, Medicaid, and Medicare.
Best for: Detox and residential careJoint CommissionCARF
Why it made our list: Joint Commission and CARF accredited; offers detox, residential care, PHP, and IOP; accepts 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 Medicare.
Best for: Detox and residential careJoint CommissionCOA
Why it made our list: Joint Commission, COA, and NCQA accredited; offers detox, residential care, PHP, and IOP; accepts Medicaid and Medicare.
Parkville, MD 21234
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +2 more
“Get help” calls our free helpline, not this facility.
Cambridge, MD 21613
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Private insurance · TRICARE +2 more
“Get help” calls our free helpline, not this facility.
Prince Frederick, MD 20678
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Private insurance · TRICARE +2 more
“Get help” calls our free helpline, not this facility.
Baltimore, MD 21212
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +4 more
“Get help” calls our free helpline, not this facility.
Baltimore, MD 21213
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +1 more
“Get help” calls our free helpline, not this facility.
Baltimore, MD 21212
CARF accredited
Levels of care
Payment accepted
Medicaid · Private insurance · TRICARE +2 more
“Get help” calls our free helpline, not this facility.
Crownsville, MD 21032
CARF accredited
Levels of care
Payment accepted
Medicaid · Private insurance · Self-pay
“Get help” calls our free helpline, not this facility.
Annapolis, MD 21401
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Private insurance · TRICARE +2 more
“Get help” calls our free helpline, not this facility.
Baltimore, MD 21213
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +1 more
“Get help” calls our free helpline, not this facility.
Dundalk, MD 21222
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +2 more
“Get help” calls our free helpline, not this facility.
Baltimore, MD 21216
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +1 more
“Get help” calls our free helpline, not this facility.
Havre de Grace, MD 21078
CARF accredited
Levels of care
Payment accepted
Private insurance · TRICARE · Self-pay
“Get help” calls our free helpline, not this facility.
Upper Marlboro, MD 20772
Joint Commission accredited
Levels of care
Payment accepted
Private insurance · Self-pay
“Get help” calls our free helpline, not this facility.
Brooklyn, MD 21225
Joint Commission · COA · NCQA accredited
Levels of care
Payment accepted
Medicaid · Medicare
“Get help” calls our free helpline, not this facility.
Catonsville, MD 21228
Joint Commission · CARF accredited
Levels of care
Payment accepted
Medicaid · Self-pay
“Get help” calls our free helpline, not this facility.
Rockville, MD 20852
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Olney, MD 20832
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +1 more
“Get help” calls our free helpline, not this facility.
Rockville, MD 20852
Joint Commission accredited
Levels of care
Payment accepted
Private insurance · TRICARE · Self-pay
“Get help” calls our free helpline, not this facility.
Towson, MD 21286
Joint Commission accredited
Levels of care
Payment accepted
Private insurance · TRICARE · Self-pay
“Get help” calls our free helpline, not this facility.
Baltimore, MD 21201
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Bel Air, MD 21014
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Fort Washington, MD 20744
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Private insurance · TRICARE +2 more
“Get help” calls our free helpline, not this facility.
Westminster, MD 21157
CARF accredited
Levels of care
Payment accepted
Medicaid · Private insurance · Self-pay +2 more
“Get help” calls our free helpline, not this facility.
Bel Air, MD 21014
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Private insurance · TRICARE +1 more
“Get help” calls our free helpline, not this facility.
Baltimore, MD 21217
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
Cumberland, MD 21502
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +2 more
“Get help” calls our free helpline, not this facility.
Westminster, MD 21157
CARF · COA accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +1 more
“Get help” calls our free helpline, not this facility.
Brooklyn, MD 21225
CARF accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +2 more
“Get help” calls our free helpline, not this facility.
Nottingham, MD 21236
CARF accredited
Levels of care
Payment accepted
Medicaid · Private insurance · Self-pay
“Get help” calls our free helpline, not this facility.
Baltimore, MD 21206
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +3 more
“Get help” calls our free helpline, not this facility.
We list 211 intensive outpatient programs in Maryland, based on SAMHSA's FindTreatment.gov data (updated October 2026).
The most listings are in Baltimore (57), Hagerstown (8), and Frederick (8).
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.
