Jonathan S. Emens, M.D., F.A.B.S.M.

  • Associate Professor of Psychiatry, School of Medicine
  • Assistant Professor of Medicine, School of Medicine
  • Affiliate Faculty, Oregon Institute of Occupational Health Sciences
  • Staff Physician, VA Portland Health Care System


Dr. Emens is an Associate Professor of Psychiatry at Oregon Health & Science University. He received his B.A. from Oberlin College, M.D. from University of Massachusetts Medical School, and completed his Internship and Psychiatry Residency at OHSU.

Dr. Emens' clinical focus is on the diagnosis and treatment of sleep disorders in the Portland VA Sleep Medicine Program. He is board certified in Psychiatry and Sleep Medicine.

Dr. Emens’ research has focused on circadian rhythm sleep disorders (in particular, Non-24-Hour Sleep-Wake Rhythm Disorder), sleep and circadian physiology in mood disorders, and circadian physiology in sleep apnea and obesity.


  • B.A., 1992, Oberlin College
  • M.D., 1998, University of Massachusetts Medical School
  • Residency:

    • OHSU, Department of Psychiatry

Memberships and associations

  • Fellow, American Academy of Sleep Medicine
  • Sleep Research Society
  • American Psychiatric Association



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