Terena Gimmillaro, DO, FASAM

Dr. Terena Gimmillaro, DO, FASAM is a board-certified physician in both
Family Medicine and Addiction Medicine with nearly a decade of experience
treating individuals with substance use disorders and co-occurring mental
health conditions. She is passionate about providing evidence-based,
compassionate care that helps patients achieve long-term recovery and
improved overall health.

Dr. Gimmillaro currently serves as an Addiction Medicine Physician at
Providence Portland Medical Center, where she provides inpatient addiction
medicine consultations and manages withdrawal treatment for alcohol,
opioid, and other substance use disorders. She previously served as Medical
Director for Recovery Works Northwest, where she led clinical operations,
supervised healthcare providers, and developed programs and workflows to
enhance outpatient addiction treatment services.

Her diverse clinical background includes outpatient addiction medicine,
methadone and buprenorphine treatment, inpatient withdrawal
management, primary care, and independent medical evaluations for the
Oregon Medical Board. During her Family Medicine Residency at
Providence Oregon Family Medicine, where she served as Chief Resident,
she developed a strong interest in addiction medicine and played a
leadership role in launching Project Nurture, a program supporting
pregnancies complicated by substance use disorders.

Dr. Gimmillaro earned her Doctor of Osteopathic Medicine degree from
Western University of Health Sciences and her Bachelor of Science in
General Science from Oregon State University. She is board certified in
Family Medicine and Addiction Medicine, holds an Oregon medical license
and DEA registration, and maintains her Buprenorphine X-Waiver. She is an
active member of the American Society of Addiction Medicine (ASAM), the
American Academy of Family Physicians (AAFP), the Oregon Medical
Association (OMA), and the American Association of Physician Leadership
(AAPL).

In addition to her clinical work, Dr. Gimmillaro has participated in
international medical mission work, providing primary and acute medical
care to underserved communities in Ghana. She remains dedicated to
advancing addiction medicine through clinical excellence, leadership,
education, and patient-centered care.