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Melissa Weimer

Associate Professor of Medicine (General Medicine) and of Epidemiology (Chronic Diseases); Medical Director of the Addiction Medicine Consult Service, Program in Addiction Medicine; Associate Program Director of the Addiction Medicine Fellowship Program, Medicine

Contact Information

Melissa Weimer, DO, MCR, FASAM

Patient Care Locations



Dr. Weimer is board certified in Internal Medicine and Addiction Medicine and has a clinical and research focus on substance use disorders treatment, particularly in the hospital setting. She also has fellowship training and years of experience in the management of complex pain, particularly for patients with concomitant opioid use disorders. She is the Medical Director of the Yale Addiction Medicine Consult Service (YAMCS), a multidisciplinary, hospital based program to address the substance use disorder needs of patients admitted to Yale New Haven Hospital.

Dr. Weimer has worked tirelessly on a local, state and national level to improve access to evidence based treatments for individuals with substance use disorder. Her work to expand addiction treatment in hospital settings started at Oregon Health & Science University where she worked with colleagues and community partners to create one of the nation's first hospital-based models to initiate addiction treatment while patients are hospitalized from a complication of their substance use. An experienced educator, she teaches health care students and professionals about substance use disorders and their treatment to promote the expansion of the addiction medicine workforce. She additionally serves as the Associate Program Director of the Yale Addiction Medicine Fellowship program.

Education & Training

  • MCR
    Oregon Health & Science University (2012)
  • General Medicine Fellowship
    Oregon Health & Science University (2012)
  • Residency
    Oregon Health & Science University (2010)
  • Internship
    Oregon Health & Science University (2008)
  • DO
    Virginia College of Osteopathic Medicine (2007)
  • BA
    University of Virginia, Religious Studies & Biology (2001)

Honors & Recognition

AwardAwarding OrganizationDate
Top Addiction Medicine DocPortland Monthly Magazine2017
Paper of the Month: A Chronic Opioid Therapy Dose Reduction Policy in Primary CareOregon Health & Science University2016
Top Addiction Medicine DocPortland Monthly Magazine2016
Top Addiction Medicine DocPortland Monthly Magazine2015
Founders' AwardSociety of General Internal Medicine2013
Fellow Teaching AwardOregon Health & Science University School of Medicine2011
Extramural Research Loan Repayment AwardNational Institute of Heath2011
Medical Honor Society InductionSigma Sigma Phi Osteopathic Medical Honor Society2007

Professional Service

Ambulatory Opioid Stewardship Committee, Yale New Haven HospitalCommittee Member2020 - Present
Clinical Practice Guideline Oversight and Methodology Group, American Society of Addiction MedicineChair2020 - Present
Recognizing and Eliminating disparities in Addiction through Culturally-Informed Healthcare (REACH)Mentor2019 - Present
Opioid Stewardship Committee, Yale New Haven HospitalCommittee Member2019 - Present
Multidisciplinary Infective Endocarditis Workgroup, Yale New Haven HospitalChair2019 - Present
Cross-disciplinary Addiction Workgroup, Yale New Haven HospitalCommittee Member2018 - Present
American Society of Addiction MedicineAlternate Region 1 Delegate2017 - 2019

Departments & Organizations