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Quimson Behavioral Health

Providing more than a "medication check." 

We provide comprehensive psychiatry and therapy rooted in cultural understanding and whole-person care.

 

​Our office provides telehealth/virtual mental health treatment to patients located throughout Oregon and Washington. In-person appointments are available in our Portland office.

 

What To Expect

Our 60-minute initial appointments and 30-minute follow-up visits provide time to understand your needs, discuss medication options, and offer ongoing support. 

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The frequency of follow-up appointments depends on acuity of symptoms, treatment response, clinical necessity, and patient preference. Patients who are undergoing medication changes are commonly seen every 4-8 weeks.

*(Follow-up frequency may vary depending on the specifics of your case.)

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Integrated Psychiatric Care: Medication and Therapy

 As a psychiatrist, Dr. Quimson-Guevarra offers combined medication management and psychotherapy for select clients. These are 60-minute sessions.

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Our Team

Pia Quimson-Guevarra is an AAPI and BIPOC  psychiatrist who provides mental health treatent in Oregon and Washington. psychiatrist. Quimson Behavioral Health.

Owner and Psychiatrist

Cayley Mesterheide- Physician Assistant. Provides mental health treatment for Oregon and Washington patients.

Physician Assistant 

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Clinical Coordinator: Intake + Scheduling

Jamie Williams, MSW, LSW

© 2026 by Quimson Behavioral Health                

 

Disclaimer:

The content at Quimson Behavioral Health’s website, including its’ blog and social media accounts, is for informational purposes only. Information is gathered and shared from reputable sources; however, Quimson Behavioral Health is not responsible for errors or omissions in reporting or explanation. No individuals, including those who are under Quimson Behavioral Health’s care, should use the information contained within for self-diagnosis or self-treat of any mental health or medical condition. This information should not be a substitute for your provider’s care or advice. 

 

As a reader, you have not entered a patient-physician relationship with me.  Therefore, I ask that you not ask me for medical advice, either in the comments or by email. I may delete such comments and accept no responsibility to respond to unsolicited email.

 

If you are experiencing a medical or psychiatric emergency, please call 911 or go to your nearest emergency room.

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