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William Castillo

Therapist · Washington

William Castillo

LMHC

Compassionate, practical support for life transitions

Continue with William
Experience
18 years
Based in
Washington
Sessions
Online
Languages
English
  • Evidence-based care
  • Focus on relationships
  • 18 years experience

About William

William Castillo is a licensed mental health counselor with 18 years of experience helping people through major life changes. He focuses on practical support for stress, anxiety, depression, trauma, and relationship concerns, including separation and divorce issues. His style is direct and compassionate, aimed at helping people regain stability and clarity.

He uses evidence-based therapeutic techniques to address symptoms and day-to-day struggles. Sessions often focus on clear goals, coping practices, and improving communication where relationships are involved. William pays attention to how past experiences, attachment patterns, and life transitions shape current responses.

William emphasizes cultural responsiveness and listens for each person’s unique context. He works with people facing a broad set of challenges, such as abandonment concerns, blended family strains, substance-related issues, and the stresses that come with immigration or serious illness. He also addresses problems tied to infidelity, codependency, and fatherhood roles.

People meet him for help managing intense emotions, improving self-esteem, or recovering after trauma. He draws on 18 years of practice in Washington to offer steady, focused care. Sessions aim to build practical skills clients can use between meetings.

To begin, clients complete a short matching questionnaire and schedule according to William’s availability. The subscription-based sessions can be canceled at any time, and international clients are supported. Prospective clients should confirm current session options before booking.

License and NPI on record

LMHC
Washington · LH60208827

As listed on the therapist's profile. A license can be checked with the state board, and an NPI with the national NPI registry.

Areas of expertise

Additional focus areas

AbandonmentAttachment issuesBlended family issuesCancerCo-morbidityCodependencyCommunication problemsDivorce and separationDomestic violenceDrug and alcohol addictionFamily problemsFatherhood issuesImmigration issuesImpulsivityInfidelityMen's issuesVeteran and Armed Forces IssuesMood disordersMulticultural concernsPost-traumatic stressPrejudice and discriminationProcess addiction (porn, exercise, gambling)Seasonal Affective Disorder (SAD)Self-loveSocial anxiety and phobia

Experience

18+ years

Credentials

Washington

Languages

English

How evidence-based methods translate to online care

William integrates evidence-based therapeutic techniques that focus on practical skills and clear goals. One approach emphasizes teaching coping strategies and emotion regulation to reduce symptoms of anxiety and depression. This helps people manage intense feelings and daily stressors with tools they can practice between sessions.

Another common element centers on improving relationship patterns and attachment concerns. Sessions explore communication habits, boundaries, and ways to rebuild trust after conflicts like infidelity or separation. That work is aimed at clearer interactions and fewer reactive responses in everyday life.

Finding the right therapeutic approach is part of the work together. The therapist will collaborate with each person to choose methods that match their needs, goals, and comfort level and will adjust the plan as progress unfolds.

Because the original biography does not list specific session formats, please confirm which options are currently offered before booking. Online therapy can help fit sessions into a busy schedule and reduce travel time, and some formats make shorter check-ins easier or require less bandwidth. Discuss practical details with the therapist when scheduling to pick times and formats that best suit daily routines.

Frequently asked questions

What concerns does William commonly address?

He helps people with stress, anxiety, depression, trauma and relationship challenges, including separation and divorce-related issues and communication problems.

What is his general therapy style?

The approach is collaborative and goal-focused, using evidence-based techniques to develop coping skills and improve day-to-day functioning.

How much clinical experience does he have?

He has 18 years of professional experience working with a wide range of mental health concerns.

What credentials and location are listed?

He is a Washington LMHC and practices out of Washington state.

Which languages are supported for sessions?

Sessions are offered in English and international clients are accepted.

What session formats are available?

Please confirm current session formats before booking, as the biography does not specify which formats are offered.

How are fees handled?

Cost varies with location and therapist availability, and sessions use a subscription model that can be canceled at any time.

How do I begin working with him?

Use the Start Therapy button, complete a short matching questionnaire, and schedule sessions based on the therapist's availability.

Good to know

Therapists listed here offer talking therapy online. It is not legal, financial or custody advice, and no therapist can promise how a separation or a relationship will turn out.

If you are not safe at home, or someone is hurting or threatening you, contact emergency services or a domestic-abuse helpline. The numbers are at the foot of this page.

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