For individuals who, based on clinical opinion, require specialized behavior or health services due to maladaptive behaviors or other reasons. This could include a dentist, doctor, surgeon, speech / occupational / physical / respiratory therapist, addiction counselor or psychologist / therapist.

A Specialized Therapeutic Services provider delivers clinical services identified in a consumer’s Individual Program Plan (IPP) for individuals with developmental disabilities who need specialized support.
Services may include oral health, physical health, and behavioral or mental health therapies, provided by licensed professionals with at least one year of relevant experience, in home, community, or clinical settings.

My child has a substance abuse problem and mental illness. He needs a specially trained therapist to work with them and consider staging an intervention.