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Stanford Hospital Addiction Services (SHAS)
Stanford Hospital Addiction Services (SHAS) cares for hospitalized patients with substance use disorders through counseling, medications, and linkage to treatment on discharge. SHAS is made up of three dedicated Addiction Inpatient Medicine (AIM) services across Stanford Health Care locations: Palo Alto (AIM-PA), Tri-Valley (AIM-TV), and Sequoia (AIM-SQ).
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Bio
Zenia Cardoza has been working in the addiction treatment field for over 15 years primarily in Santa Clara County after entering recovery, nearly 20 years ago. Zenia works as a Substance Use Navigator (SUN) in the Emergency Department, a role that was started in partnership with the CA Bridge Program. Zenia’s work has paved the way for Stanford’s Emergency Dept to provide low barrier access to Medication Assisted Treatment (MAT), real-time linkage to substance use treatment programs and harm reduction interventions such as take-home naloxone. She provides compassionate and non-judgmental care to all patients and families visiting the emergency department. Zenia is a strong advocate for improving care for individuals living with substance use disorders. She was awarded the CD Role Outpatient Counselor for Professionalism by SJCC ADS Advisory Board in 2018 and the Community Hero Award by Santa Clara County Behavioral Health Board in 2022.
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She was born in the United Kingdom and has been living in the US since 2017. In February 2023, she was diagnosed with cirrhosis, then admitted for a Liver Transplant at Stanford Hospital in May 2023. Having experienced the work of the Addiction Medicine team firsthand, she knew that she initially wanted to help make a space for those like her, either pre- or post-transplant, to ask questions without judgement, just as she had with the peer support specialists who supported her on her journey in the hospital. One year post transplant, she joined Stanford’s Peer2Peer program as a Mentor for patients undergoing liver transplants. In Fall 2024, she completed training to gain a Peer Support Specialist certification in the hope of offering volunteer hours to AIM to support others with Substance Use Disorder. She has been sober since her cirrhosis diagnosis and has been active in the sober community since recovering from Transplant.
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Arleen brings a wealth of experience and deep commitment to the field of addiction medicine. Prior to working at Stanford Health Care, Arleen worked at Sacramento Comprehensive Treatment Center, where she held various roles within the methadone program. Arleen is a registered substance use counselor and has made significant contributions to the community through her leadership in presentations and educational events focused on OUD, MAT, and harm reduction.
In addition to her professional expertise, Arleen is dedicated to supporting the Latinx community. She has actively engaged in community presentations and panels that address the unique treatment perspectives and challenges faced by this population. Her master’s research on “Loss and Grief in Opioid Use Disorder” has now influenced her research in a doctoral program that continues her work in substance use. Currently, her doctoral research on “Substance Use Perspectives and Beliefs from Social Workers and Case Managers at Stanford Hospital” will lay the groundwork for targeting education and training efforts for staff.
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Alicia Ludlow is a peer support specialist with the Addiction Inpatient Medicine Service at Stanford Health Care. Alicia started as a peer mentor with National Alliance on Mental Illness (NAMI) and began working at Stanford Health Care as a peer support specialist in September 2021. Alicia utilizes her lived experience of mental illness and addiction to support patients on their journey of recovery. While meeting patients in the hospital and supporting them after discharge, Alicia helps patients discover their strengths that lead to long term sobriety. She is active in the recovery community and is a devoted advocate for sobriety and wellness.
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Charlie Porzio is a volunteer peer support specialist with the Addiction Inpatient Medicine Service at Stanford Health Care. Charlie started as a peer mentor with National Alliance on Mental Illness (NAMI) and began volunteering at Stanford Health Care as a peer support specialist in March 2021. Charlie utilizes his lived experience of mental illness and addiction to support patients on their journey of recovery. While meeting patients in the hospital and supporting them after discharge, Charlie also volunteers, bringing AA meetings in to jails and institutions. He is active in the recovery community and is a devoted advocate for sobriety and wellness. Charlie has been substance free since March 1,1986.
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