Partial Hospitalization Programs (PHP) for Addiction

Partial hospitalization programs (PHP) provide the most intensive level of outpatient addiction treatment, delivering 20 or more hours of structured clinical care per week. Patients attend programming during the day, typically five to six days per week, and return home or to a sober living residence in the evening. ASAM classifies PHP as Level 2.5 care, positioning it between intensive outpatient (IOP) and residential treatment in terms of clinical intensity and medical oversight.

Key Takeaways

• PHP delivers 20+ hours per week of structured clinical programming, usually 5-6 days per week
• ASAM classifies PHP as Level 2.5 care, the highest intensity of outpatient treatment
• Daily programming includes group therapy, individual counseling, psychiatric oversight, and medication management
• PHP is appropriate for patients stepping down from inpatient care or those who need more support than IOP provides
• New Jersey’s partial care system offers state-funded PHP options for eligible residents
• Insurance coverage for PHP is mandated under the Mental Health Parity and Addiction Equity Act

What Is a Partial Hospitalization Program?

PHP Definition and ASAM Level

Partial Hospitalization Program (PHP): An outpatient level of addiction care providing 20 or more hours per week of structured therapeutic programming with medical and psychiatric oversight. Patients attend during the day and return home at night. PHP is classified as ASAM Level 2.5 care.

PHP sits at the top of the outpatient intensity spectrum. It offers clinical services comparable to what patients would receive in a residential program, but without the 24-hour residential component. This makes PHP appropriate for patients who need intensive clinical support but have safe, stable housing to return to each evening.

Programs typically operate Monday through Friday, with some offering Saturday sessions. Daily programming runs five to seven hours and includes a combination of group therapy, individual counseling, psychiatric evaluation, medication management, and psychoeducation.

How PHP Differs from IOP and Inpatient

Understanding where PHP fits within the treatment continuum helps clarify when it is the appropriate level of care:

Feature	IOP (Level 2.1)	PHP (Level 2.5)	Residential (Level 3)
Hours per week	9+	20+	24/7
Days per week	3-5	5-6	7
Medical monitoring	Moderate	Regular	Continuous
Psychiatric oversight	Limited	On-site	On-site
Housing	Home	Home/sober living	On-site

PHP provides substantially more structure and clinical oversight than intensive outpatient programs, making it suitable for patients with higher acuity needs. Unlike inpatient rehab, PHP allows patients to maintain some connection to their daily routines, families, and communities.

What Does a Day in PHP Look Like?

Daily Programming

A typical PHP day runs from approximately 9:00 AM to 3:00 or 4:00 PM and includes a structured sequence of therapeutic activities:

• Morning check-in: Brief group session to assess mood, review goals, and identify any emerging concerns
• Group therapy block (AM): Structured group using evidence-based curricula such as CBT, DBT skills training, or process-oriented group therapy
• Lunch break: Supervised meal time; some programs provide meals while others require patients to bring their own
• Psychoeducation: Structured learning modules covering topics such as addiction neuroscience, relapse prevention, trauma and its role in addiction, and interpersonal skills
• Group therapy block (PM): Additional group session, often focusing on specific skills such as coping strategies, emotional regulation, or family dynamics
• Individual session or case management: One-on-one time with an assigned counselor, occurring one to three times per week
• Closing group: End-of-day check-out reviewing progress, homework assignments, and plans for the evening

This intensive daily structure provides therapeutic immersion comparable to residential treatment while allowing patients to practice skills in their real-world environment each evening.

Clinical and Medical Services

PHP programs include clinical components that go beyond standard outpatient or IOP offerings:

• Psychiatric evaluation and medication management: On-site psychiatrists or psychiatric nurse practitioners assess co-occurring mental health conditions and prescribe or adjust psychotropic medications. This is a key distinguishing feature of PHP.
• Medical monitoring: Regular vital sign checks, medication compliance monitoring, and coordination with primary care providers
• Evidence-based therapies: CBT, DBT, motivational interviewing, trauma-informed care, and relapse prevention
• Drug screening: Regular urine or oral fluid testing for substance use monitoring
• Family programming: Structured family therapy sessions and family education programming
• Discharge planning: Coordination of step-down to IOP or standard outpatient, including aftercare referrals

The presence of psychiatric services makes PHP particularly valuable for patients with dual diagnosis conditions, where substance use disorders co-occur with mental health conditions requiring active medication management.

Who Should Consider PHP?

Clinical Indicators

PHP is typically recommended for patients in one of two situations: those stepping down from a higher level of care, or those whose clinical presentation requires more intensity than IOP provides.

Clinical indicators for PHP placement include:

• Stepping down from residential treatment while still requiring intensive therapeutic support
• Co-occurring mental health disorders (depression, bipolar disorder, anxiety, PTSD) needing psychiatric oversight alongside addiction treatment
• Recent detox completion requiring close monitoring during early recovery
• Moderate-to-severe substance use disorder with adequate housing stability
• Need for medication management that requires more frequent psychiatric contact
• Insufficient clinical progress at the IOP level

ASAM Criteria guide placement decisions by evaluating the six clinical dimensions: withdrawal potential, biomedical conditions, emotional and behavioral conditions, readiness for change, relapse potential, and recovery environment.

NJ Partial Care Programs

New Jersey operates a statewide partial care system through the Division of Mental Health and Addiction Services (DMHAS). NJ partial care programs provide structured daytime treatment for individuals with mental health and substance use disorders, often serving as the state-funded equivalent of PHP.

Key features of NJ’s partial care system:

• Programs are available in all 21 NJ counties
• Sliding-scale fees for uninsured residents
• NJ FamilyCare (Medicaid) covers partial care services
• Some programs specialize in co-occurring disorder treatment
• Referral can be made through county mental health boards or by contacting programs directly

NJ residents can locate partial care programs through the DMHAS provider directory or by calling the state helpline at 1-844-ReachNJ.

PHP vs. IOP: Choosing the Right Level

The decision between PHP and IOP depends on clinical assessment and individual needs:

PHP may be more appropriate when:

• Psychiatric symptoms are active and require frequent medication adjustments
• The patient has recently completed detox and needs close monitoring
• Co-occurring conditions are complex and not yet stabilized
• The patient needs more daily structure to maintain sobriety

IOP may be sufficient when:

• Psychiatric conditions are stabilized
• The patient has several weeks of sobriety and demonstrated coping skills
• Work or school commitments make full-day programming impractical
• The patient is stepping down from PHP and ready for less intensity

Many patients progress from PHP to IOP as they stabilize, creating a gradual reduction in treatment intensity rather than an abrupt transition. This step-down approach, supported by NIDA research on treatment duration and outcomes, helps maintain therapeutic gains while building independence.

How to Access PHP in New Jersey

Insurance Coverage

The Mental Health Parity and Addiction Equity Act requires insurers to cover substance use disorder treatment, including PHP, at parity with medical and surgical benefits. In practice, this means:

• Most private insurers cover PHP with preauthorization
• NJ FamilyCare (Medicaid) covers partial hospitalization and partial care services
• Medicare covers PHP for substance use disorders when medically necessary
• Prior authorization is typically required, and programs generally handle this process on behalf of patients

Referral Process

Accessing PHP typically involves one of these pathways:

• Stepping down from inpatient: The residential treatment team coordinates the transition and secures insurance authorization for PHP
• Direct admission: Patients or families contact PHP programs directly for an assessment. Most programs offer phone screenings to determine preliminary eligibility.
• Clinical referral: A primary care physician, psychiatrist, or outpatient therapist can refer patients to PHP when clinical presentation warrants higher-level care
• Crisis system: Emergency department evaluations or psychiatric crisis services may result in PHP placement as an alternative to inpatient admission

PHP is one level within the broader continuum of addiction treatment. For patients who need intensive clinical support but have stable housing, partial hospitalization provides a high-intensity treatment option that bridges the gap between residential and outpatient care.

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This is part of our complete guide to Types of Addiction Treatment.