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Frost Mental Health

Accepting new patients · CA & FL

Support, clarity & healing, from the comfort of home

Online psychiatric care for adults: careful medication management, adult ADHD testing and neurodiversity-affirming autism screening with board-certified nurse practitioners.

  • Reply within one business day
  • Superbills for PPO reimbursement
Woman smiling and waving during a video appointment on her laptop at home
  • Board-certified psychiatric NPs
  • HIPAA-compliant video visits
  • Superbills for PPO reimbursement
  • Adults 18+ in California & Florida

Specialized testing

Adult ADHD testing & autism screening

Many neurodivergent adults spend years with burnout, overwhelm or a missed diagnosis. We offer formal virtual evaluations and affirming, practical care.

Neurodevelopmental testing

Adult ADHD Testing & Evaluation

Structured evaluations that tell adult ADHD apart from anxiety, depression and trauma-related focus problems.

  • Diagnostic psychiatric interview
  • Validated rating scales (ASRS, Barkley)
  • Executive function and working memory review
  • Screening for co-occurring anxiety or mood conditions
  • Stimulant and non-stimulant medication options
More about ADHD Testing

Neurodiversity-affirming

Adult Autism Spectrum Screening

Affirming screenings designed for adults, including late-identified women and people who mask.

  • Sensory sensitivities and overload patterns
  • Social communication, masking and burnout
  • Routines, special interests and thinking style
  • Differentiating trauma and anxiety
  • A clear, non-stigmatizing summary
More about Autism Screening
Woman relaxing against her couch while using a laptop

Getting started

Some things are just easier from home

No commute, no waiting room. Getting care takes three simple steps.

  1. Send a request

    Use our short form or call (626) 600-8543. We reply within one business day.

  2. Complete intake online

    You’ll get a secure portal invitation to sign consents and share your health history.

  3. Meet by video

    Join your consultation from the portal and leave with a clear plan.

  • Comfort & privacyJoin from your couch, home office or any private space.
  • Save timeFit visits around work and family without traffic or parking.
  • Secure by designEncrypted, HIPAA-compliant video and patient portal.

Our team

Meet your psychiatric providers

Board-certified psychiatric mental health nurse practitioners with decades of combined experience.

Melissa Frost, PMHNP-BC Accepting new patients

Melissa Frost, PMHNP-BC

Founder & Clinical Director

Two decades of psychiatric experience, with a focus on adult ADHD, sensory sensitivities and treatment-resistant mood conditions.

  • Adult ADHD
  • Sensory sensitivities
  • Treatment-resistant mood conditions
Read Melissa’s bio
Lisa Johnson, PMHNP-BC, FNP-BC Accepting new patients

Lisa Johnson, PMHNP-BC, FNP-BC

Psychiatric & Family Nurse Practitioner

Dual-certified in psychiatry and family practice, connecting hormones, sleep and metabolic health with emotional well-being.

  • Hormonal shifts
  • Sleep problems
  • Mind–body health
Read Lisa’s bio
Charinette Gamboa, PMHNP-BC Accepting new patients

Charinette Gamboa, PMHNP-BC

Psychiatric Nurse Practitioner

Trauma-informed care for anxiety, mood, life transitions and postpartum support, with a strong focus on patient choice.

  • Anxiety & mood
  • Life transitions
  • Postpartum support
Read Charinette’s bio

Insurance & superbills

Do you take insurance in California?

We do not accept insurance in California. Care is private pay, so treatment decisions and visit length stay between you and your provider.

  • Itemized superbill (CPT & ICD-10 codes) after every visit
  • Submit to your PPO directly or through Reimbursify
  • Florida patients: ask us about network participation

From our blog

Insights from our clinical team

All articles

Common questions

Good to know before you book

Quick answers about eligibility, testing and getting started.

See all FAQs
Do you take insurance?

We do not accept insurance in California. Care is private pay (fee-for-service), and payment is due at each appointment.

After every visit we give you an itemized superbill that you can submit to your PPO for out-of-network reimbursement, either directly or through Reimbursify. Many PPO plans include out-of-network mental health benefits.

In Florida, please contact our office to confirm current network participation.

Who can become a patient?

We see adults 18 and older who are physically located in California or Florida at the time of each appointment. Care is entirely virtual.

You’ll need a phone, tablet or computer with a camera, microphone and a stable internet connection, and the ability to use our online patient portal.

How does virtual ADHD testing or autism screening work?

It starts with a diagnostic video consultation plus validated questionnaires you complete securely online.

Your provider reviews your developmental history, school or work challenges, attention, sensory patterns and mood, and rules out look-alikes such as thyroid problems or anxiety. You then receive a diagnostic summary and a personalized plan.

How do I become a new patient?
  1. Reach out. Send a request through our contact page or call (626) 600-8543.
  2. Complete intake. You’ll get a secure invitation to our patient portal to sign consents and complete your health questionnaire.
  3. Meet by video. At your appointment time, join the secure video link from the portal.

Ready to feel more like yourself?

Whether you’re looking for an ADHD evaluation, an affirming autism screening or careful medication management, we’re here to help.

Call Request appointment