As part of the MAT Expansion efforts combating the opioid crisis across the state of California, UCLA launched a new training initiative to provide customized technical assistance specifically to support and expand the impact of waivered prescribers to treat patients struggling with opioid use disorder. The objective of the MAT Waivered Prescriber Support Initiative is to identify the barriers to prescribing buprenorphine and provide the targeted mentorship, training, and technical assistance to address those barriers. Prescribers will connect with experienced buprenorphine providers throughout California to access direct consultation. Services offered may include direct mentorship by phone or video, on-site or off-site TA (e.g., program/provider visits, prescriber shadowing), and in-person or virtual training activities related to treating patients with OUD.