The Collaborative Care PrTNER Study

Inclusion Criteria: Aim 1: * 15-24 years old; * Cisgender male; * History of condomless sex; * Moderate-to-high risk SU behaviors based upon a Car, Relax, Alone, Forget, Friends, Trouble (CRAFFT) score ≥2, * Living in Philadelphia, PA or Baltimore, MD, and surrounding areas; * Able to read and write in English Aim 2: * 15-29 years old; * Cisgender male; * Living with a diagnosis of HIV; * CRAFFT score ≥2, * Living in Philadelphia, PA or Baltimore, MD, and surrounding areas; * Able to read and write in English Aim 3 • All randomized study participants will be included in Aim 3. Exclusion Criteria: Aim 2: * Participants will be excluded if they are: * Assigned female sex at birth * Identify as transgender * Outside the age criteria (\<15 or \>29 years old) * Cognitively unable to complete study requirements * Living outside of the two geographic areas * Do not screen positive for SU * No prior substance use history * No prior condomless sex; * Unable to read or write in English, * Plan to move in the next 12 months.