Psychiatric Services and Medication Management

Puget Sound Psychotherapy & Psychiatry offers psychiatric services, including prescription medication management, in Seattle, Washington. Our psychiatric nurse practitioners (ARNP) have extensive training and experience treating adult individuals, children, and teens. We look forward to working with you.


Geoffrey Fong
Psychiatric ARNP


Leslie Casias


Tim Richardson



Please note none of our psychiatric ARNPs are in-network with Medicare, Medicaid, AppleCare, Molina, or Tri-care.   


Please note, due to being independent providers without backup support or wrap-around care options, we are unable to provide services for those who are actively suicidal - please look for a larger clinic or organization that has more staff and support to help provide for your safety and a higher level of care.


Click here to schedule an appointment 


Dr Tim Richardson, DNP, PMHNP-BC 


Tim Richardson Seattle

I am a Psychiatric Practitioner, and I can provide psychiatric assessments, diagnose, manage treatment plans, and prescribe medication for a range of psychiatric conditions. I have over a decade of experience in child and adolescent psychiatry as an inpatient nurse in the Seattle area. I received my Bachelor of Science in Nursing from Northwest University, my Master of Nursing from University of Washington and my Doctorate of Nursing Practice from Rush University. I will work collaboratively with my patients and their support system to provide evidence-based treatments through safe medication management and supportive therapy.  My emotion support dog, named Remy, can be requested to provide additional support for in-person office visits.


My practice is open to new clients ages 6+ and I look forward to working with you.  Listed below are my areas of focus:


  • ADHD (formerly ADD)
  • Anxiety
  • Depression
  • Grief
  • Insomnia
  • Mood Disorders
  • OCD
  • Panic Disorder
  • PTSD/Trauma


Tim's office is located at:

2719 E Madison St, Suite 301

Seattle, WA 98112



Geoffrey Fong, PMHNP-BC, Psychiatric ARNP (Telehealth only) - Has openings for new patients in 2-4 weeks


Geoffrey Fong Seattle


I am licensed as a PMHNP-BC, Psychiatric ARNP. I have experience treating children, adolescents and adults in the Outpatient and Partial Hospitalization settings, and I offer medication management and psychiatric consultation services. I have a special interest in treating depression, anxiety, mood disorders, and autism. I completed my education at Columbia University and Cornell.


My extra training in Consultation-Liaison and Emergency Service, as well as my extensive experience as a residential mental health case manager, allows me to bring a psychoeducational and empathic approach to my medication management services.


I believe in collaborating with parents, family, and other mental health professionals to bring a team of support and care to my patients.


I am Board Certified as a Family Psychiatric-Mental Health Nurse Practitioner with an Oncology Subspecialty from the Columbia University School of Nursing, a Masters of Arts in Psychology Education from Columbia University Teachers College, and a Bachelors of Arts in Psychology and Sociology from Cornell University.

Services include: 

  • Symptom Management
  • Health Services
  • Medication Management
  • Socialization


Family Psychiatric and Mental Health Nurse Practitioner Certification
American Nurse Credentialing Center

Washington State Registered Nurse/Nurse Practitioner
Washington State Board of Registration of Nursing

Registered Nurse
Washington State Board of Registration of Nursing


I am currently taking new patients.  Please go to this link to schedule an appointment. Please specify that you would like psychiatric services with me. If you hope to use insurance, please also be sure to read our Insurance and Fees Page

Additional Help

If you are not sure whether psychiatric services are what you need, you can schedule a consultation session with me.  If you need help understanding the difference between psychiatric services and counseling services, please feel free to contact us for help discerning which services to request. If you are not sure about the difference in counseling/therapy and psychiatric services, please first read this comparison:

I am a new patient, how do I access the patient portal to complete my intake paperwork?

You will be given an access code during the intake process.  Use it to login to the Valant Patient Portal here.



Leslie Casias, APRN, ACNP-BC - Telehealth only; Accepting new clients 

Leslie Casias

As a board certified Adult Acute Care Nurse Practitioner, I have worked in several settings where mental health is a priority. I have worked with clients in neurology in the clinic setting, and acute psychiatry in the correctional system. Combining both my neurology and psychiatric background, attention deficit hyperactivity disorder (ADHD). I received my Bachelors of Nursing from Texas Woman's University, and my Masters of Science in Nursing from the University of Texas at Arlington. I perform psychiatric assessments, prescribe and manage medications, and will work with you to create a treatment plan that you are comfortable with and fits your needs. I have been described by clients as compassionate, empathetic and non-judgmental. I look forward to meeting you and helping you reach your mental health goals.


Leslie's office is located at:

2800 E Madison St, Suite 201 

Seattle WA 98112



I am a new patient, how do I access the patient portal to complete my intake paperwork?

You will be given an access code during the intake process.  Use it to login to the Valant Patient Portal here.