Pia Guimson-Guevarra, DO

Pia Quimson-Guevarra, DO

Forensic Psychiatrist Medicolegal Consultant

Dr. Quimson-Guevarra is a Board-Certified Psychiatrist and Forensic Psychiatrist based in Portland.

She serves as a medical-legal case consultant to attorneys, expert witness, and psychiatric medicolegal evaluator.

Clinical Psychiatry

Quimson Behavioral Health, Dr. Quimson-Guevarra’s clinical practice serves patients in the Portland Metropolitan Area.

Details of Dr. Quimson-Guevarra’s Board-Certifications, training, credentials, media, and publications are available below and in the downloadable CV.

Licenses & Certifications

Oregon Medical License, #DO179697

Board Certification in Psychiatry, American Board of Psychiatry and Neurology, #73318

Board Certification in Forensic Psychiatry, American Board of Psychiatry and Neurology, #2495

Oregon Forensic Evaluator Certificate

Clinical and Forensic Practice

Quimson Behavioral Health (2019-Present)
Adult and Forensic Psychiatry, Private Practice (2019- Present)
  • Forensic psychiatric consultation, evaluations, testimony in civil and criminal cases.
Cascadia Behavioral Health, Adult and Forensic Psychiatrist (2017-Dec 2021)
  • Outpatient psychiatric care to patients in the forensic assertive community treatment (FACT) program.
  • Outpatient psychiatric care at an urgent-care walk-in clinic
Columbia Care, Outpatient Psychiatrist
  • Telemedicine and in-person outpatient psychiatric care; settings included community clinics and supported housing (2017-2018)

Forensic Psychiatry Experience and Education

Forensic Psychiatry Fellowship, Oregon Health and Science University (2018-2019)

Emphasis:  Law and the Legal Process, Criminal Forensic Psychiatry, Civil Forensic Psychiatry, Special Issues in Forensic Psychiatry, Landmark Cases.

There are approximately 50 Forensic Psychiatry Fellowships in the United States, accommodating 2-4 competitive spots to Psychiatrists. Dr. Quimson-Guevarra was accepted into the OHSU Fellowship, which is highly regarded and the only such program in the Pacific Northwest.

  • Washington County Jail, Multnomah County Detention Center, and Oregon Department of Corrections, telepsychiatry and forensic
  • Washington County Mental Health Court Consultation
  • Willamette University Law School (see also, Presentations)
  • Oregon State Hospital Forensic Evaluations

Education and Medical Residencies

Oregon Health and Science University (2013-2017)

Psychiatry Residency. Inpatient and Outpatient General Psychiatry, Psychiatry Treatment, OHSU (2013-2017)

Focus: Psychiatry Patient-Care with additional: Pharmacology, Community/Public Psychiatry, Women’s Mental Health, Forensic Psychiatry, Child Psychiatry, Cultural Psychiatry, Neuroscience, Psychotherapy, Evidence-Based Medicine, Leadership in Medicine, and Quality improvement in standard of care.

Resident, Psychiatry Patient-Care
  • Inpatient general psychiatry, Oregon Health and Science University Hospital, and Portland Veterans Administration (VA)
  • Outpatient psychiatry, OHSU, and Portland VA
  • Inpatient consult-liaison psychiatry, OHSU and Portland VA
  • Child psychiatry consultation, OHSU
  • Outpatient addiction psychiatry, Portland VA
  • HIV psychiatry, Portland VA
  • Telepsychiatry/rural mental health, Portland VA
  • Sleep medicine, Portland VA
  • Community psychiatry with mental health intensive case management team (MHICM), Portland VA
  • Community psychiatry with assertive community treatment team (ACT), Central City Concern, a non-profit providing health care to underserved populations for patients impacted by homelessness, poverty and/or addiction
  • Forensic psychiatry elective on the forensic evaluation service, Oregon State Hospital
  • Neurology, Portland VA
  • Inpatient internal medicine, Portland VA
  • Integrated primary care, Portland VA, and OHSU
  • Integrated primary care, Portland VA, and OHSU
  • Emergency Medicine and Emergency Psychiatry, OHSU, and Portland VA
Western University of Health Sciences

School of Osteopathic Medicine (2009-2013) Doctor of Osteopathic Medicine (DO, Medical Degree)

University of California, Berkeley

Bachelor of Science Degree in Nutritional Sciences,(2002-2006) Emphasis on Physiology and Metabolism


Mood Disorders

Webinar presentation to a private clinical practice. Portland, Oregon (11/2022)

Testamentary Capacity

Willamette University College of Law (10/2018)

Career Panel for Forensic and Criminal Psychology

Symposium, Lewis and Clark College (2/2019)


Didactic Psychopharmacology Presentations for 1st year OHSU psychiatry Residents, 2016-2017

  • Treatment of Bipolar Disorders
  • Treatment of Anxiety Disorders
  • Psychiatric Drug-to-Drug Interactions
  • Journal club presentation for OHSU adult psychiatry training program (8/2016)
  • Applebaum PS. Assessment of Patients’ Competence to Consent to Treatment. N Engl J Med 2007; 357:1834 40.
Common Factors in Psychotherapy

Presentation to 2nd year OHSU Psychiatry Residents (7/2016)

Global Mental Health

Expert Hour to OHSU Adult Psychiatry training program (4/2016)

Evaluation of Consult and Liaison Service

Consult and Liaison Service rotations for OHSU Adult Psychiatry training program, Education Performance Committee (EPC) (8/2015)

Animal-Assisted Therapy

14th Course of Academic Development of Psychiatry (CADP) (3/2015)

Mortality and Morbidity (M&M)

Conference for OHSU Adult Psychiatry training program (4/2014)

Honors and Awards

Oregon Psychoanalytic Center (OPC) Diversity Scholarship (9/2016)

To increase underrepresented populations in psychoanalysis; awarded a scholarship to OPC fundamentals course.

University of California, Berkeley

University of California, Berkeley Graduation with Distinction (Top 10% of Graduating Class) (2006)

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