Matt Tierney

Lydia Bartholow, DNP, PMHNP, CARN-AP, FIANN is a doctorally prepared psychiatric nurse practitioner specializing in addiction medicine and trauma-informed care. She is a Fellow of the International Society of Addictions Nursing and serves as Medical Director of a psychiatric emergency department in Portland, Oregon, focused on acute psychiatric and substance-use–related crises. Lydia has held medical leadership roles in both inpatient and outpatient settings, building systems of care for people who use substances. She is the recipient of multiple state and national awards for excellence in addiction medicine, leadership, and health equity, and speaks nationally on co-occurring disorders, harm reduction, and substance-use care system improvement. She lives in Portland, OR with too many animals and just the right number of plants.

Matt Tierney is a Nurse Practitioner and active clinician at San Francisco General Hospital’s
Opiate Treatment Outpatient Program (OTOP). The focus of his work for nearly 30 years is
improving access to evidence-based addiction treatment locally, regionally and nationally, and
he has created and directed numerous novel clinical programs designed to increase care for
problematic substance use. Past roles include Medical Director of Inpatient Substance Use
Management at UCSF Health, Clinical Director of Substance Use Treatment and Education at
UCSF's Office of Population Health, and Director of San Francisco’s Office-based Buprenorphine
Induction Clinic (OBIC), the first clinic in the nation devoted solely to buprenorphine treatment
initiation and stabilization. He is Past President of the American Psychiatric Nurses Association
(APNA) and continues to represent APNA at the National Academies of Sciences Engineering
and Medicine on the Forum on Mental Health and Substance Use Disorders. In 2018 he was
named a Fellow of the American Academy of Nursing, where he serves on the Expert Panel on
Psychiatric Mental Health and Substance Use. With national advanced-practice certifications in
Addictions Nursing (CARN-AP), Adult Primary Care (ANP), and Psychiatric-Mental Health
(PMHNP), he has expertise in addressing both indivi