Psychiatry in Costa Mesa, California Karissa Chisum, Psychiatric Nurse Practitioner

License: PMHNP

Provider Gender: Female

Ages Served: 18-64

Appointments: In-office and Telehealth

Manages Medications: Yes

Psychiatry in Costa Mesa, California Karissa Chisum, PMHNP

Karissa Chisum, PMHNP

Karissa Chisum is a Psychiatric Mental Health Nurse Practitioner in California who has been practicing since 2023. With a focus on medication management, Karissa seeks to understand each client’s individual needs. Client backgrounds, strengths they may already possess, and challenges they are going through are all taken into account . Karissa builds on these factors with an individualized, patient centered approach. Her training and education bring together medicine and the holistic care of nursing.

She understands that many things can affect your mental health. With an integrative and holistic approach, she will seek to understand each aspect of your health including physical, behavioral, emotional, mental, spiritual, and social. Karissa pays special attention to each client’s personal history, specific context, traumatic life experiences and stressful circumstances; all of which she approaches with patience, warmth, and understanding. She offers helpful explanations that facilitate treatment and builds the client’s sense of comfort and trust. Karissa understands that each individual is unique and takes a therapeutic approach in reaching treatment goals.

She enjoys working with patients who are looking to gain insight into themselves and improve their quality of life. Karissa is dedicated to providing empathetic, patient centered care. Outside of work, Karissa enjoys staying active, working out, hiking, biking, and trying new foods at different restaurants.

Insurances Accepted

  • Aetna
  • Elevance Health (Anthem BC)
  • Evernorth (Cigna)
  • Humana
  • Magellan
  • Managed Health Network (HealthNet)
  • MediNcrease Health Plans (MHP)
  • MultiPlan (PHCS)
  • Optum (UnitedHealthcare)
  • Partners Direct Health
  • Provider Network of America (PNOA)
  • Sana Benefits


  • First Responders
  • LGBTQ+
  • Men
  • Military/Veterans
  • Women


  • English



Please use our online form to schedule an appointment with Karissa Chisum. You can also call 925-282-1778 to have someone assist you.

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