Todd Korthuis, M.D., M.P.H.

  • Professor of Medicine, School of Medicine
  • Chief, Addiction Medicine Section
  • Program Director, Addiction Medicine Fellowship

Biography

Todd Korthuis is a general internist, addiction medicine specialist, and clinician scientist. He began his clinical career treating patients living with HIV and has practiced addiction medicine since 2004. He serves as Head of the Section of Addiction Medicine at OHSU. His research focuses on integration of addiction treatment and prevention in diverse health care settings. He serves as Co-Principal Investigator of the National Drug Abuse Treatment Clinical Trials Network (CTN) Western States Node that tests new treatment strategies for opioid, methamphetamine, and cocaine use disorders (UG1DA015815). He has served as Principal Investigator for multiple NIH-funded research studies including the CTN-0067 trial of extended-release naltrexone in North American HIV clinics, the BRAVO implementation trial of buprenorphine for OUD in Vietnam HIV clinics, the Oregon HOPE peer engagement intervention to decrease overdose in rural Oregon, and the PROUD-R2 peer intervention to improve retention of people who use drugs in clinical trials in rural America. Honors include the 2008 Lawrence S. Linn Award for research that improves the lives of people living with HIV, a 2012-2013 Fulbright Scholar award to study integration of HIV and addiction care in Vietnam, and a 2022 Fulbright Senior Scholar Award to study the intersection of harm reduction and substance use disorder treatment in Barcelona, Spain.

A complete list of Dr. Korthuis' publications is available in MyBibliography.

Education and training

  • Degrees

    • B.S., 1986, Azusa Pacific University
    • M.D., 1991, University of Health Sciences/Chicago Medical School
    • M.P.H., 2002, University of California Los Angeles

  • Internship

    • Naval Medical Center San Diego, 1991-1992

  • Residency

    • Yale University School of Medicine, 1996-1998
    • Yale University School of Medicine, 1998-1999

  • Fellowship

    • West Los Angeles Veterans Administration Ambulatory Care, 2000-2002

  • Certifications

    • American Board of Preventive Medicine, Addiction Medicine Subspecialty, 2019-current
    • American Board of Addiction Medicine, 2010-current
    • American Board of Internal Medicine, 1998-current

Memberships and associations:

  • Society of General Internal Medicine

Areas of interest

  • Addiction Medicine
  • HIV
  • General Internal Medicine

Publications

Elsevier pure profile

Selected publications

  • Kohno M, Dennis LE, McCready H, Schwartz DL, Hoffman WF, Korthuis PT. A preliminary randomized clinical trial of naltrexone reduces striatal resting state functional connectivity in people with methamphetamine use disorder. Drug Alcohol Depend. 2018;192:186-192. PMC6200637
  • Springer SA, , Korthuis PT, Del Rio C. Integrating Treatment at the Intersection of Opioid Use Disorder and Infectious Disease Epidemics in Medical Settings: A Call for Action After a National Academies of Sciences, Engineering, and Medicine Workshop. Ann. Intern. Med. 2018;169(5):335-336. PMC6251491
  • McCarty D, Priest K, Korthuis PT. Treatment and Prevention of Opioid Use Disorder: Challenges and Opportunities. Annu. Rev. Public Health. 2018;39:525-541. PMC5880741
  • Korthuis PT, Edelman EJ. Substance use and the HIV care continuum: important advances. Addict Sci Clin Pract, 2018. 13(1): p. 13. PMC5848588
  • Chou R, Korthuis PT, McCarty D, Coffin PO, Griffin JC, Davis-O'Reilly C, Grusing S, Daya M. Management of Suspected Opioid Overdose With Naloxone in Out-of-Hospital Settings: A Systematic Review. Ann Intern Med 2017; 167(12):867-75.
  • Korthuis PT, McCarty D, Weimer D, Bougatsos C, Blazina I, Zakher B, Grusing S, Devine B, Chou R. Primary Care-Based Models for the Treatment of Opioid Use Disorder: A Scoping Review. Annals of Internal Medicine. 2017; 166 (4):268-278. PMC 5504692.
  • Englander H, Weimer M, Solotaroff R, Nicolaidis C, Chan B, Velez C, Noice A, Hartnett T, Blackburn E, Barnes P, Korthuis PT. Planning and Designing the Improving Addiction Care Team (IMPACT) for Hospitalized Adults with Substance Use Disorder. Journal of Hospital Medicine (2017); 12(5):339-342. PMC5542562
  • Korthuis PT, Lum PJ, Vergara-Rodriguez P, Ahamad K, Wood E, Kunkel LE, Oden NL, Lindblad R, Sorensen JL, Arenas V, Ha D, Mandler RD, McCarty D for the CTN-0055 CHOICES Investigators. "Feasibility and Safety of Extended-Release Naltrexone Treatment of Opioid and Alcohol Use Disorder in HIV Clinics: A Pilot/Feasibility Randomized Trial." Addiction 2017; (6): 1036-1044. PMC 5408318.
  • Nguyen Bich D, Korthuis PT, Nguyen Thu T, Van Dinh H, Le Minh G. HIV patients' preference for integrated models of addiction and HIV treatment in Vietnam. J Substance Abuse Treat 2016 (69): 57–63. PMC5517304.
  • Callon W, Beach MC, Saha S, Chander G, Wilson IB, Laws MB, Sharp V, Cohn J, Moore RD, Korthuis PT.  Assessing Problematic Substance Use in HIV Care: Which Questions Elicit Accurate Patient Disclosures? Journal of General Internal Medicine, 2016. 31(10): 1141-7. PMC5023601

Publications

  • “I'm tired of seeing my friends die”

    Journal of Rural Health
    1. Kathryn E. Lancaster
    2. Angela T. Estadt
    3. Madison N. Enderle
    4. Todd P. Korthuis
    5. April M. Young

  • Opioid Treatment Programs and Risks for COVID-19 Infections, Emergency Visits, and Hospitalizations

    Journal of general internal medicine
    1. Ryan Cook
    2. Kendra L. Blalock
    3. Sanae El Ibrahimi
    4. Kimberly Hoffman
    5. Ximena Levander
    6. Kacey Little
    7. Gillian Leichtling
    8. P. Todd Korthuis
    9. Dennis McCarty

  • Oregon’s Emerging Psilocybin Services Workforce

    Journal of psychoactive drugs
    1. Jason B. Luoma
    2. Kimberly Hoffman
    3. Adrianne R. Wilson-Poe
    4. Ximena A. Levander
    5. Alissa Bazinet
    6. Ryan Cook
    7. Dennis McCarty
    8. Kellie Pertl
    9. Sarann Bielavitz
    10. Devin Gregoire
    11. R. Cameron Wolf
    12. Don C. Des Jarlais
    13. Harland V. Harrison
    14. Christopher S. Stauffer
    15. P. Todd Korthuis

  • Peer-assisted telemedicine hepatitis-C treatment for people who use drugs in rural communities

    Addiction Science and Clinical Practice
    1. Kim Hoffman
    2. Gillian Leichtling
    3. Sarah Shin
    4. Andrew Seaman
    5. Tonhi Gailey
    6. Hunter C. Spencer
    7. P. Todd Korthuis

  • Rural houselessness among people who use drugs in the United States

    Drug and Alcohol Dependence
    1. April M. Ballard
    2. Zora Kesich
    3. Heidi M. Crane
    4. Judith Feinberg
    5. Peter D. Friedmann
    6. Vivian F. Go
    7. Wiley D. Jenkins
    8. P. Todd Korthuis
    9. William C. Miller
    10. Mai T. Pho
    11. David W. Seal
    12. Gordon S. Smith
    13. Thomas J. Stopka
    14. Ryan P. Westergaard
    15. William A. Zule
    16. April M. Young
    17. Hannah LF Cooper

  • Adolescent Residential Addiction Treatment In The US

    Health Affairs
    1. Caroline A. King
    2. Tamara Beetham
    3. Natashia Smith
    4. Honora Englander
    5. Dana Button
    6. Patrick C.M. Brown
    7. Scott E. Hadland
    8. Sarah M. Bagley
    9. Olivia Rae Wright
    10. P. Todd Korthuis
    11. Ryan Cook

  • Associations between stimulant use and return to illicit opioid use following initiation onto medication for opioid use disorder

    Addiction
    1. Canyon Foot
    2. Philip T. Korthuis
    3. Judith I. Tsui
    4. Sean X. Luo
    5. Brian Chan
    6. Ryan R. Cook

  • Buprenorphine discontinuation in telehealth-only treatment for opioid use disorder

    Journal of Substance Use and Addiction Treatment
    1. Brian Chan
    2. Ryan Cook
    3. Ximena Levander
    4. Katharina Wiest
    5. Kim Hoffman
    6. Kellie Pertl
    7. Ritwika Petluri
    8. Dennis McCarty
    9. P. Todd Korthuis
    10. Stephen A. Martin

  • Buprenorphine Injection Among Rural Persons Who Inject Drugs

    JAMA Network Open
    1. Kaitlin A. Zinsli
    2. Elenore P. Bhatraju
    3. Judith Feinberg
    4. Thomas J. Stopka
    5. Peter D. Friedmann
    6. William Zule
    7. Hannah L.F. Cooper
    8. April M. Young
    9. P. Todd Korthuis
    10. Mai T. Pho
    11. Wiley D. Jenkins
    12. William C. Miller
    13. Vivian F. Go
    14. David W. Seal
    15. Ryan P. Westergaard
    16. Rob J. Fredericksen
    17. Joseph A. Delaney
    18. Judith I. Tsui

  • Buprenorphine/Naloxone vs Methadone for the Treatment of Opioid Use Disorder

    JAMA
    1. Bohdan Nosyk
    2. Jeong Eun Min
    3. Fahmida Homayra
    4. Megan Kurz
    5. Brenda Carolina Guerra-Alejos
    6. Ruyu Yan
    7. Micah Piske
    8. Shaun R. Seaman
    9. Paxton Bach
    10. Sander Greenland
    11. Mohammad Ehsanul Karim
    12. Uwe Siebert
    13. Julie Bruneau
    14. Paul Gustafson
    15. Kyle Kampman
    16. P. Todd Korthuis
    17. Thomas Loughin
    18. Lawrence C. McCandless
    19. Robert W. Platt
    20. Kevin T. Schnepel
    21. M. Eugenia Socías

  • Comparative Analysis of Instrumental Variables on the Assignment of Buprenorphine/Naloxone or Methadone for the Treatment of Opioid Use Disorder

    Epidemiology
    1. Fahmida Homayra
    2. Benjamin Enns
    3. Jeong Eun Min
    4. Megan Kurz
    5. Paxton Bach
    6. Julie Bruneau
    7. Sander Greenland
    8. Paul Gustafson
    9. Mohammad Ehsanul Karim
    10. P. Todd Korthuis
    11. Thomas Loughin
    12. Malcolm MacLure
    13. Lawrence McCandless
    14. Robert William Platt
    15. Kevin Schnepel
    16. Hitoshi Shigeoka
    17. Uwe Siebert
    18. Eugenia Socias
    19. Evan Wood
    20. Bohdan Nosyk

  • Composition of buprenorphine prescribing networks in Medicaid and association with quality of care

    Journal of Substance Use and Addiction Treatment
    1. Jane M. Zhu
    2. Christina J. Charlesworth
    3. Bradley D. Stein
    4. Coleman Drake
    5. Daniel Polsky
    6. P. Todd Korthuis
    7. K. John McConnell

  • Correlates of overdose among 2711 people who use drugs and live in 7 rural US sites

    Drug and Alcohol Dependence
    1. Fadanelli Monica M
    2. Livingston Melvin “Doug”
    3. Friedmann Peter
    4. Go Vivian F.
    5. Jenkins Wiley
    6. Korthuis P. Todd
    7. Miller William
    8. Pho Mai
    9. Seal David
    10. Stopka Tom
    11. Westergaard Ryan
    12. Zule William
    13. Young April M
    14. Cooper Hannah LF

  • Correlates of Recent HIV Testing Among People Who Inject Drugs in Rural Areas

    AIDS and Behavior
    1. Umedjon Ibragimov
    2. Melvin D. Livingston
    3. April M. Young
    4. Judith Feinberg
    5. P. Todd Korthuis
    6. Wajiha Z. Akhtar
    7. Wiley D. Jenkins
    8. Heidi M. Crane
    9. Ryan P. Westergaard
    10. Robin Nance
    11. William C. Miller
    12. John Bresett
    13. Dalia Khoury
    14. Christopher B. Hurt
    15. Vivian F. Go
    16. Kerry Nolte
    17. Hannah L.F. Cooper

  • Developing the Open Psychedelic Evaluation Nexus consensus measures for assessment of supervised psilocybin services

    Journal of Psychopharmacology
    1. Philip Todd Korthuis
    2. Kim Hoffman
    3. Adrianne R. Wilson-Poe
    4. Jason B. Luoma
    5. Alissa Bazinet
    6. Kellie Pertl
    7. David L. Morgan
    8. Ryan R. Cook
    9. Sarann Bielavitz
    10. Renae Myers
    11. Robert Cameron Wolf
    12. Dennis McCarty
    13. Christopher S. Stauffer

  • Differences in hepatitis C virus (HCV) testing and treatment by opioid, stimulant, and polysubstance use among people who use drugs in rural U.S. communities

    Harm Reduction Journal
    1. Angela T. Estadt
    2. David Kline
    3. William C. Miller
    4. Judith Feinberg
    5. Christopher B. Hurt
    6. L. Sarah Mixson
    7. Peter D. Friedmann
    8. Kelsa Lowe
    9. Judith I. Tsui
    10. April M. Young
    11. Hannah Cooper
    12. P. Todd Korthuis
    13. Mai T. Pho
    14. Wiley Jenkins
    15. Ryan P. Westergaard
    16. Vivian F. Go
    17. Daniel Brook
    18. Gordon Smith
    19. Dylan R. Rice
    20. Kathryn E. Lancaster

  • Engaging the great circle

    Annals of Medicine
    1. Kim A. Hoffman
    2. Chantell Graves
    3. Kelly Rowe
    4. Jennifer Worth
    5. Kellie Pertl
    6. James Laidler
    7. P.  Todd Korthuis
    8. Dennis McCarty

  • Evaluation of respondent-driven sampling in seven studies of people who use drugs from rural populations

    BMC Medical Research Methodology
    1. Abby E. Rudolph
    2. Robin M. Nance
    3. Georgiy Bobashev
    4. Daniel Brook
    5. Wajiha Akhtar
    6. Ryan Cook
    7. Hannah L. Cooper
    8. Peter D. Friedmann
    9. Simon D.W. Frost
    10. Vivian F. Go
    11. Wiley D. Jenkins
    12. Philip T. Korthuis
    13. William C. Miller
    14. Mai T. Pho
    15. Stephanie A. Ruderman
    16. David W. Seal
    17. Thomas J. Stopka
    18. Ryan P. Westergaard
    19. April M. Young
    20. William A. Zule
    21. Judith I. Tsui
    22. Heidi M. Crane
    23. Bridget M. Whitney
    24. Joseph A.C. Delaney

  • Exemplar Hospital initiation trial to Enhance Treatment Engagement (EXHIT ENTRE)

    Addiction Science and Clinical Practice
    1. Gavin Bart
    2. P. Todd Korthuis
    3. Julie M. Donohue
    4. Hildi J. Hagedorn
    5. Dave H. Gustafson
    6. Angela R. Bazzi
    7. Eva Enns
    8. Jennifer McNeely
    9. Udi E. Ghitza
    10. Kara M. Magane
    11. Paulette Baukol
    12. Ashley Vena
    13. Jacklyn Harris
    14. Delia Voronca
    15. Richard Saitz

  • Exemplar Hospital Initiation Trial to Enhance Treatment Engagement (EXHIT ENTRE)

    Addiction Science and Clinical Practice
    1. Gavin Bart
    2. Kelly S. Barth
    3. Paulette Baukol
    4. Eva Enns
    5. Udi E. Ghitza
    6. Jacklyn Harris
    7. Eve Jelstrom
    8. Jane M. Liebschutz
    9. Kara M. Magane
    10. Delia Voronca
    11. Zoe M. Weinstein
    12. P. Todd Korthuis

  • Harm Reduction in Peer-Assisted Telemedicine for Hepatitis C

    Viruses
    1. Hunter Spencer
    2. Devin Gregoire
    3. Gillian Leichtling
    4. Megan Herink
    5. Andrew Seaman
    6. P. Todd Korthuis
    7. Ryan Cook

  • Improving access to buprenorphine for rural veterans in a learning health care system

    Health Services Research
    1. Jessica J. Wyse
    2. Katherine Mackey
    3. Kim A. Kauzlarich
    4. Benjamin J. Morasco
    5. Kathleen F. Carlson
    6. Adam J. Gordon
    7. P. Todd Korthuis
    8. Alison Eckhardt
    9. Summer Newell
    10. Sarah S. Ono
    11. Travis I. Lovejoy

  • Integrating Buprenorphine for Opioid Use Disorder into Rural, Primary Care Settings

    Journal of general internal medicine
    1. Jessica J. Wyse
    2. Alison Eckhardt
    3. Summer Newell
    4. Adam J. Gordon
    5. Benjamin J. Morasco
    6. Kathleen Carlson
    7. P. Todd Korthuis
    8. Sarah S. Ono
    9. Travis I. Lovejoy

  • Overdose responses among rural people who use drugs

    Harm Reduction Journal
    1. Robin Baker
    2. Rob J. Fredericksen
    3. Abby E. Rudolph
    4. Thomas J. Stopka
    5. Suzan M. Walters
    6. Monica Fadanelli
    7. Rebecca S. Bolinski
    8. Adams L. Sibley
    9. Erin Stack
    10. Heidi M. Crane
    11. P. Todd Korthuis
    12. David W. Seal

  • Patient perceptions of and experiences with stigma using telehealth for opioid use disorder treatment

    Harm Reduction Journal
    1. Jessica V. Couch
    2. Mackenzie Whitcomb
    3. Bradley M. Buchheit
    4. David A. Dorr
    5. Darren J. Malinoski
    6. P. Todd Korthuis
    7. Sarah S. Ono
    8. Ximena A. Levander