About Me

Pia Quimson-Guevarra, DO

I am a board-certified psychiatrist, a medical doctor who specializes in mental health. I graduated from medical school in 2013 from Western University of Health Sciences in California. I completed my psychiatry residency training at Oregon Health and Science University (OHSU) and pursued additional training in Forensic Psychiatry. My interests include community and forensic psychiatry.


At Quimson Behavioral Health, I provide clinical services in a supportive environment to promote emotional wellness and growth. I provide more than just a “medication check” appointment. I employ a balanced approach which includes medications, education, and talk therapy.


While I treat a variety of mental health conditions, I specialize in anxiety and depression. I also help others explore the impact of culture on their mental health. I identify as Filipina-American. 


Blog Post: 



Nothing on this website should be construed as legal advice. I am not licensed to practice law in any state and am not an attorney.  I am not a disclosed Expert Witness or Forensic Psychiatric Consultant in a legal matter until there exists a signed Retention Contract. No attorney-client privilege exists as a retained Consultant.  I welcome a call from attorneys, employers, government administrative bodies or others requiring forensic services, to discuss your case to determine if my experience and credentials are appropriate to the case. I do not work directly with individuals representing themselves in a legal matter.