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David Phak, Nurse Practitioner
Psychiatry in Brea, California

David Phak, Nurse Practitioner

Specialties:
ADHD Attention & focus Sexual trauma Trauma & PTSD Ability status +25
Gender Identity: Male (He/Him)
Ages Served: 18-75+
Appointments: In-office and Online
Manages Medications: Yes
Accepts Insurance: Yes - View accepted plans

David Phak, PMHNP- BC, helps adults and older adults across California regain stability, clarity, and confidence through individualized psychiatric medication management. Practicing at LifeStance Health, he supports patients throughout California who are navigating complex mental health conditions, offering careful evaluation, collaborative treatment planning, and ongoing support focused on long-term wellness and daily functioning.

David is especially committed to working with individuals who have been recently discharged from a psychiatric hospital. He understands that the transition back into daily life can feel overwhelming and requires close follow-up, clear communication, and thoughtful medication oversight. His approach emphasizes continuity of care, symptom stabilization, and practical strategies that help reduce the risk of relapse while rebuilding independence, structure, and confidence after hospitalization.

His clinical focus includes ADHD, bipolar disorder, and PTSD/trauma, with experience treating anxiety, depression, and other serious mental health conditions as part of comprehensive care. David provides medication management for adults and seniors and works with diverse populations, including first responders, military veterans, and members of the LGBTQ+ community. He brings a culturally responsive lens to care and also offers services in Khmer. While medication management is central to his practice, he supports a wide range of additional psychiatric concerns when clinically appropriate.

Outside of clinical practice, David enjoys staying active and grounded through outdoor activities such as surfing and hiking. These interests reflect his belief in holistic wellness and the importance of balance, mindfulness, and resilience in mental health.

Types of Care & Ages Served

Areas of Focus

Psychiatry/Medication Management

Treat and prevent mental health disorders using medication and therapy.

  • ADHD
  • Attention & focus
  • Obsessive Compulsive Disorder
  • Sexual trauma
  • Trauma & PTSD
  • Ability status
  • Anger issues
  • Anxiety
  • Bipolar Disorder
  • Chronic pain-related issues
  • Depression/feeling down
  • Ethnic identity
  • First responder stress
  • Grief & loss
  • Hallucinations
  • Immigration/cultural status
  • Intense mood changes
  • Men's health/issues
  • Military & veteran
  • Panic attacks
  • Phobias
  • Psychosis/issues with reality
  • Racial identity
  • Schizophrenia/schizoaffective
  • Self-esteem
  • Self-injury or cutting
  • Sleep issues or insomnia
  • Social injustice
  • Stress management
  • Unusual thoughts or beliefs

Languages

  • English
  • Khmer

Education

  • University of Missouri-Columbia

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Frequently Asked Questions About David Phak

Please use our online form to schedule an appointment with David Phak. You can also call 562-431-8822 to have someone assist you.

See what our patients are saying about David Phak

I came to David during a really hard time in my life with panic attacks/ depression. It was hard at first (taking meds), but David makes it easy. He educates me on all my options and works with me if I have doubts. Plus he's a really nice and caring individual. I highly recommend David.
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Lena V.

Lena V.

May 07, 2026
Google Google
Mr Phak gets an A+ from me! He was a great listener and very knowledgeable and at the same time very caring and compassionate. I wish all medical professionals were the same! I will definitely keep going to him. Janey
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Janey P.

Janey P.

Apr 25, 2026
Google Google
Absolutely amazing. Listened to all my concerns and took them seriously. I've gotten alot better!
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Christian F.

Christian F.

May 06, 2026
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Excellent experience
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private91205

private91205

May 20, 2026
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David Phak, Psychiatry in Brea, California

David Phak

Psychiatry in Brea, California

New patient?

View Availability

Already have an appointment?

Video visit waiting room Join Now
Existing patient portal Sign in