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Grey Matters Mental Health
Clinic Services
Comprehensive evaluation and treatment for adults with:
  • Depression

  • Anxiety

  • Substance Use Disorders and Addictions

  • Attention Deficit Disorders

  • Post-traumatic Stress Disorder

Call or text for an appointment
If you are experiencing a mental health crisis, contact 988. For medical emergencies, please call 911. We do not provide crisis or emergent care. 
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Dealing with mental health challenges can be difficult and it can be hard to know where to start. Our clinic's skilled providers can help create a personalized treatment plan that meets your individual needs. We look forward to working with you towards your mental health goals.

Jacki Gervais Psychiatric Nurse Practitioner


Psychiatric Nurse Practitioner

Jacki Gervais PMHNP, CARN-AP, APRN,  is a Certified Addiction and Psychiatric and Mental Health Nurse Practitioner with over 20 years of experience working with individuals who have various psychiatric and substance abuse disorders. 

On her personal time Jacki enjoys cooking, playing with her dog and watching documentaries. She often enjoys traveling around the US, and visiting with friends. 

Stacie Olson Psychiatric Nurse Practitioner

Psychiatric Nurse Practitioner 

Stacie Olson, DNP, APRN, PMHNP-BC

Stacie Olson DNP, APRN, PMHNP-BC is an adult psychiatric mental health nurse practitioner who graduated from the University of North Dakota (UND) with her Master of Science and Psychiatric Mental Health Nurse Practitioner degree in 2010.  She graduated in 2014 from Duquesne University with her doctorate in nursing practice (DNP).


She has experience in working with individuals with anxiety disorders, major depression, bipolar, ADHD, eating disorders, and substance use disorders. She also currently holds a faculty position at Frontier Nursing University working with a Psychiatric Mental Health Nurse Practitioner (NP) program.    

Stacie has interests in chemical dependency, suicide assessment, and working with graduate psychiatric NP students to advance the number of psychiatric NPs in rural areas.  She works for the NLN CNEA as an on-site nursing program accreditation evaluator. She has served on the local board for Sigma Theta Tau Eta Upsilon Chapter and the board for the North Dakota Nurse Practitioner Association.   

Elizabeth Vidas Psychiatric Nurse Practitioner

Psychiatric Nurse Practitioner 

Elizabeth Vidas, DNP, APRN, PMHNP-BC

Elizabeth Vidas, DNP, ARNP, PMHNP-BC is a psychiatric nurse practitioner who graduated with a doctor in nursing practice degree from University of Washington. She has experience working with people struggling with depression, anxiety, mood disorders, trauma, and substance use disorders. Prior to becoming a nurse practitioner, she worked as an addiction counselor supporting people entering recovery from substance use disorders and has over 10 years of experience working in a therapeutic role. 

She uses a strengths-based approach to help you define your goals and create a treatment plan that suits your unique needs. She views treatment planning as a collaborative process in which you are the expert of your own experience, mind, and body and she provides evidence-based guidance. Plans can include medications and other holistic interventions such as movement, supplements, adding foods, or mindfulness-based techniques.

In her free time, Elizabeth enjoys hiking, running, crocheting, and board games.

Erin Briggs Office Manager

Office Manager


Erin has experience working with both children and adolescents with psychiatric illness and addictions. Erin has been an instrumental part of ensuring our office runs smoothly, that clients get seen in a timely manner, and offering administrative support to all professional staff.


In her free time, Erin enjoys spending time with her family, tending to her chickens and enjoys outdoor activities.

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Contact Us

P:  (206) 607-9205

F:  (206) 299-9713

5306 Ballard Ave NW, suites 208 & 217

Seattle, WA 98117

Suite 208 Office Space
Front of office building
Office is located off of Ballard Avenue in Seattle
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