2026 Board of Directors
As the governing body, the ACAAM Board of Directors is comprised of individuals who are responsible for the ultimate direction of the management of ACAAM's affairs.
Executive Committee
Randall Brown, MD PhD
PRESIDENT
Dr. Brown is a Professor in the University of Wisconsin Department of Family Medicine and Community Health. Dr. Brown’s primary interests revolve around the treatment and prevention of substance use disorders and their complications in settings outside of the specialist treatment environment (e.g. primary care, hospitals, pharmacies, criminal justice settings, and community outreach entities such as syringe service programs). He is Board Certified in Family Medicine and in Addiction Medicine. Dr. Brown's current research includes investigations in early liver transplantation in the setting of alcohol-associated liver disease, mobile technology to support recovery, prevention of substance misuse and pain-related dysfunction after traumatic injury, and potential therapeutic applications of psychedelic compounds, such as psilocybin, MDMA, and 5MeO-DMT. He serves as a consulting physician in addiction medicine at UW Hospital, Madison VAMC, and the UW Multi-Disciplinary Clinic for Alcohol-Associated Liver Disease. Dr. Brown is also the Founding Director of the UW Addiction Medicine Fellowship Program and Director of the UW Center for Addictive Disorders.
J. Deanna Wilson, MD MPH
President-Elect
Dr. Wilson is a Presidential Assistant Professor of Family Medicine and Community Health at the University of Pennsylvania. Dr. Wilson's research interests include reducing substance use-related health disparities and building equity, with an emphasis on innovative strategies to treat opioid use disorders in adolescent and adult populations. Her work includes integrating harm reduction into primary care settings, developing low threshold models of care to improve engagement and retention of vulnerable populations, and improving engagement and retention of adolescents and young adults in OUD treatment.
Alexander Y. Walley, MD MSc
Past PRESIDENT
Dr. Walley is Professor of Medicine at Boston University Chobanian & Avedisian School of Medicine, primary care physician and addiction medicine specialist at Boston Medical Center focused on the medical complications of substance use, specifically HIV and overdose. He has led research studies on overdose and the integration of addiction specialty care and general medical care. He is the founder of the inpatient addiction medicine consult service and low barrier walk-in substance use care clinic at Boston Medical Center. Dr. Walley was the founding director of the Grayken Addiction Medicine Fellowship. He serves as the medical director for the Massachusetts Department of Health's Bureau of Substance Addiction Services and the Overdose Prevention Program.
Elizabeth A. Samuels, MD MPH MHS
Treasurer
Dr. Samuels is an emergency medicine physician, health services trained researcher, and Associate Professor of Emergency Medicine at the UCLA Department of Emergency Medicine. She completed her emergency medicine training at the Brown Emergency Medicine Residency Program, a health service research and health policy fellowship at the Yale National Clinician Scholars Program, and is board certified in Emergency Medicine and Addiction Medicine. Her work focuses on social emergency medicine and health equity initiatives, specifically community health worker/peer recovery programs, harm reduction services, low barrier substance use disorder treatment, care of transgender and gender nonbinary people, health care workforce diversity, and emergency department programs to address health related social needs.
Valerie Carrejo, MD FAAFP
secretary
Dr. Carrejo is Professor at the University of New Mexico Department of Family and Community Medicine. She completed her undergraduate, medical and residency training at the University of New Mexico. She currently serves as the Program Director of the UNM Addiction Medicine Program and Associate CMO of Primary Care for the UNM Health System, where she oversees the clinical operations of 10 primary care clinics. She is board certified in Family Medicine and Addiction Medicine. Her passion in education is to help primary care clinicians learn to integrate the treatment of addiction into primary care and when to refer for higher levels of care with an addiction medicine specialist. Her research involves treatment of opioid use disorders in the primary care setting. She serves as a board member of the New Mexico Academy of Family Physicians and is a delegate to the national AAFP Congress of Delegates.
Directors at Large
Julie M. Byler, DO
Dr. Byler is an Assistant Professor of Medicine at Oregon Health & Science University and led the expansion of IMPACT, an inpatient addiction medicine consult service, to Adventist Health Portland, an OHSU partner hospital. She is also the site director for the Inpatient Addiction Medicine Elective for OHSU medical students at Adventist Portland. Her areas of interest include the implementation of inpatient addiction medicine consult teams, inpatient management of alcohol withdrawal, substance use disorders in medical professionals, stigma, teaching, and curriculum design.
Christopher C. Holden, MD
Dr. Holden is Assistant Professor of Clinical Psychiatry at the University of Illinois College of Medicine. He serves as the Program Director of the Addiction Medicine Fellowship at the University of Illinois as well as the Director of Addiction of Addiction Psychiatry within the Department of Psychiatry, where he oversees the Recovery Clinic, an outpatient clinic that provides specialty care to patients with substance use disorders as well as substance use disorders that co-occur with mental illnesses. He also is the Medical Director of the Residential Addiction Treatment Program at the Jesse Brown VA Medical Center. Dr. Holden's research interests include pharmacotherapy for substance use disorders as well as chronic pain and the possible harms and benefits of long term opioid use.
 Camille Robinson, MD MPH
Dr. Robinson is a public-health trained pediatrician, adolescent medicine specialist and addiction medicine specialist who provides primary care to adolescents and young adults at Annapolis Pediatrics in Maryland. She is an Adjunct Assistant Professor of Pediatrics at the Johns Hopkins University School of Medicine where she is involved with the medical education of trainees along the entire spectrum from medical school to fellowship. Her clinical and scholarly interests are substance use screening and treatment, trauma-informed care, and foster care medicine. Dr. Robinson graduated from the University of California, San Francisco School of Medicine. She completed her residency in pediatrics at Johns Hopkins as well as adolescent medicine fellowship and addiction medicine training at Johns Hopkins. She is board-certified in pediatrics, adolescent medicine, and addiction medicine.
Tricia Wright, MD MS
Tricia Wright, MD MS is a Clinical Professor in the Department of Obstetrics, Gynecology and Reproductive Sciences at UCSF. She currently is the Medical Director of OBIC, San Francisco’s first and largest buprenorphine clinic, and an Obstetric Hospitalist. She is board certified in both Ob/Gyn and Addiction Medicine and a Fellow of the American College of Obstetrics and Gynecology and a Distinguished Fellow of the American Society of Addiction Medicine. She has written over 40 peer-reviewed publications, book chapters, and society guidelines, including editing the book Opioid Use Disorders in Pregnancy: Management Guidelines for Improving Outcomes published in 2018 by Cambridge University Press. She specializes in the treatment of pregnant people with substance use disorders.
Past Presidents
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