The Yale University Hub will assess whether the Transitions Clinic Network (TCN) program, which provides enhanced primary care and OUD treatment for people recently released from incarceration, improves services along the opioid treatment cascade. In the TCN model, formerly incarcerated community health workers are embedded within primary care teams, and they help to address social determinants of OUD, provide social support, help patients build trust in the health system, and advocate in interactions with the criminal justice system. The intervention provides both a primary care home and support for a variety of important social needs (including housing, food access, and social support) as individuals reenter the community. Individuals will be recruited from five jails in Connecticut, Minnesota, New York, North Carolina, and Puerto Rico.