STR Harrisburg provides outpatient mental health and substance use disorder treatment in Harrisburg, Pennsylvania, offering partial hospitalization (PHP) and intensive outpatient (IOP) programs for adults navigating substance use disorders, mental health conditions, and co-occurring disorders.

As part of STR Behavioral Health’s comprehensive continuum of care, STR Harrisburg provides individualized, evidence-based treatment to support recovery and help clients stay connected to their work, home, and community. Treatment plans are built around each person’s unique needs and goals — because recovery looks different for everyone.

STR Harrisburg is a program of STR Behavioral Health, nationally recognized by the Human Rights Campaign for LGBTQIA+-affirming care.

STR Harrisburg offers outpatient care that goes beyond standard therapy. In this structured, supportive environment, adults can prioritize their recovery while staying connected to their everyday lives.

What sets STR Harrisburg apart:

  • Flexible PHP + IOP options – Multiple levels of outpatient care are available, including IOPx5 and IOPx3 scheduling, to support recovery while balancing work, school, and family life.
  • Medication-assisted treatment (MAT) – MAT is available at every level of care when clinically appropriate, supporting a comprehensive approach to substance use disorder treatment.
  • Evidence-based, individualized care – Every treatment plan is personalized and grounded in trauma-informed, evidence-based practices.
  • An experienced multidisciplinary team – Care is led by psychiatric providers, licensed clinicians, and experienced behavioral health professionals.
  • A welcoming space for everyone – STR Harrisburg is a proud LGBTQIA+-affirming environment.

Levels of Care

STR Harrisburg offers PHP and IOP — two structured levels of outpatient care that bridge the gap between residential treatment and traditional outpatient therapy and are designed to meet each client’s needs at every stage of recovery.

Partial Hospitalization Program

STR Harrisburg’s PHP provides a higher level of clinical support and structure while clients continue living in the community. Programming includes five hours per day, Monday – Friday, with services such as individual therapy, group therapy, family therapy, medication management, case management, and peer support.

Intensive Outpatient Program

STR Harriburg’s IOP provides flexible three-hour treatment sessions, available three or five days per week during the daytime. Clients will receive therapy and ongoing guidance to support progress, including individual therapy, group therapy, family therapy, medication management, case management, and peer support.

Behind every treatment plan is a team of people who genuinely care about the person in front of them. STR Harrisburg’s clinicians bring deep expertise in substance use disorders, mental health conditions, and co-occurring disorders — and an equal commitment to showing up for each client as a human being, not just a case. From the psychiatric provider to the therapist to the care manager, every member of the team is present and invested at every step.

STR Executive Director, Nathalia Griffith

Nathalia Griffith

Executive Director

Dr. Matthew Sommons, MD

Dr. Matthew Sommons, MD

Medical Director

STR Harrisburg's office manager, Edwina McIntyre

Edwina McIntyre

Office Manager

STR Harrisburg therapist Darrin Mosley

Darrin Mosley MHS

Therapist

Headshot of Debra Farrell, MS Therapist at STR Harrisburg

Debra Farrell, MS

Therapist

Take the next step.

​Taking the first step toward outpatient treatment is a big decision — and no one should have to navigate it alone. STR Harrisburg’s admissions team is here to help, with no pressure and no judgment.

Call 866.323.1281 to speak with an admissions specialist, or complete the form and a team member will be in touch soon.