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- Stress and anxiety
- Trauma and abuse
- Self esteem
About William
William Castillo is a Washington LMHC with 18 years of clinical experience helping people manage stress, anxiety, depression, trauma and relationship concerns. He focuses on practical work that helps clients address day-to-day difficulties and improve how they relate to others.
He uses evidence-based therapeutic techniques to guide sessions. That means relying on methods shown to help with mood, anxiety, and trauma symptoms. Sessions are collaborative and goal-oriented; he talks through concrete skills, communication strategies, and ways to cope with strong emotions.
William pays attention to attachment and abandonment themes when they appear in a client’s life. He also works with issues tied to blended family dynamics, infidelity, and communication problems. These areas often connect to mood and anxiety concerns, so he links interpersonal patterns with emotional symptoms.
He addresses substance-related challenges and co-occurring conditions alongside behavioral and relationship stressors. He also notes experience with immigration-related strain, fatherhood concerns, and the stresses that can come with cancer or major medical situations. The focus is on practical next steps rather than labels.
Sessions typically look at what’s happening now and what to do next. William helps people build skills for regulating emotions, managing anxiety, and repairing or improving relationship interactions. He encourages steady progress through clear, measurable steps.
People who prefer straightforward, technique-focused work about mood, anxiety, trauma, and relationships are his primary match. For more information about session options and scheduling, follow the site’s instructions to view online therapy options and begin the intake process.
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How evidence-based techniques are used in online sessions
William uses evidence-based therapeutic techniques as the foundation for online work. That phrase in his biography means he relies on approaches supported by research to address mood and anxiety problems. In practice this looks like teaching coping skills, behavioral tools, and communication practices that people can use between sessions.He also pays attention to attachment-related patterns and abandonment concerns when they affect a person's relationships. Addressing these themes usually involves mapping interaction patterns, practicing new ways to ask for needs, and trying small behavioral experiments to change how people relate to partners or close others.
Finding the right approach is part of the work. He will help clients decide which techniques fit best based on goals, symptoms, and preferences. That is a collaborative process that may shift as progress is made.
The biography does not specify particular session formats. Confirm which formats are offered before booking. In general, online sessions can make it easier to fit therapy into a busy life by removing travel time, allowing shorter check-ins when needed, and enabling work during a break or from another location. Talk with him during intake about how to structure sessions to suit your schedule and needs.
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Areas of expertise
Primary focus
Additional focus areas
Experience
18+ years
Listed in
Washington
Languages
English
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Frequently asked questions
What kinds of problems does he help with?
He helps people with stress, anxiety, depression, trauma and relationship concerns. Additional focus areas include abandonment, attachment issues, codependency, and communication problems.
What is his therapeutic style?
He uses evidence-based therapeutic techniques and works in a collaborative, practical way. Sessions focus on skills, communication strategies, and measurable steps.
How much experience does he have?
He has 18 years of clinical experience as a practicing therapist. That experience covers mood disorders, trauma recovery, and interpersonal issues.
What are his credentials and where is he based?
He is an LMHC licensed in Washington and practices from that state. The credential is listed as WA LMHC.
Which languages are supported for sessions?
Sessions are offered in English. International clients are accepted.
What session formats are available?
The original biography does not list specific session formats. Confirm current session options before booking through the platform's scheduling tools.
How is payment handled?
Cost varies with location and sessions use a subscription model that can be canceled at any time. Exact rates depend on where the client is located.
How do I begin working with him?
Use the See online therapy options button on the site, complete a short matching questionnaire, and schedule a first session. That starts the onboarding process.
Online talk therapy is not emergency care. If you are in danger, use the urgent help numbers.