Our Services
Diagnostic Psychiatry Services
Medication review, diagnostic clarity, and ADHD evaluation for patients in California and Arizona when symptoms, labs, sleep, hormones, and medication history need to be read together.
Most new patients are seen within days
Medication review
Medication is not working, side effects are getting messy, or the regimen has grown over time.
Read serviceRequest fit checkDiagnostic clarity
Symptoms do not match the label, labs were never reviewed, or the body story is missing.
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Focus, burnout, sleep, anxiety, and executive function are tangled together.
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Insurance
Insurance Plans We Verify Before Scheduling
Plans we can check
- Aetna
- Anthem Blue Cross
- Blue Cross Blue Shield
- UnitedHealthcare / Optum / Oxford
- Medicare
- Oscar Health
- Providence Health Plan
- Cigna / Evernorth
- Carelon Behavioral Health (California only)
- Curative (Canybec Sulayman, AZ & CA)
Self-pay: Canybec Sulayman $450 initial; Sharon Hernandez $350 initial (California only). Follow-up visits $150.
Network participation varies by clinician, state, and specific plan or product. Our team checks your exact benefits before an evaluation is confirmed. A listed plan does not establish in-network status; benefits verification does not guarantee coverage or your final cost.
Our Approach
Diagnostic Psychiatry
Systematic root-cause investigation identifies the underlying medical factors—thyroid function, nutritional status, sleep quality, hormones—that limit mental clarity, energy, and mood.
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Whether you're struggling with treatment-resistant symptoms or seeking to optimize from 'functional' to 'exceptional,' comprehensive medical-psychiatric assessment changes outcomes.
The goal is a plan that explains the pattern before treatment gets more complicated.
Clinical Areas
Core Services & Clinical Areas
Comprehensive diagnostic psychiatry addressing the full spectrum of mental health needs
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Comprehensive Medical-Psychiatric Assessment
An initial evaluation that reviews symptoms, medications, sleep, and relevant medical history.
Psychiatric evaluation → -
Psychiatric Symptoms Not Improving
When standard treatment isn't working, we look deeper. We investigate underlying medical causes that may be mimicking or worsening psychiatric symptoms.
Anxiety & depression → -
Perimenopause & Women's Hormonal Health
Investigating hormonal changes that affect mood, anxiety, and cognition. We don't just treat the symptom; we look at the hormonal context.
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Men's Hormonal Health & Low Testosterone
Evaluation of testosterone and related medical factors when mood, energy, libido, or focus changes may have a hormonal component.
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PTSD & Trauma-Related Symptoms
Trauma affects the body. We explore medical factors that may be hindering trauma recovery, such as inflammation or sleep disorders.
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Insomnia & Sleep Disorders
Root-cause investigation of sleep problems. Sleep is foundational to mental health. We check for apnea, circadian issues, and more.
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Comprehensive Medication Management
Psychiatric prescribing with medical oversight, side-effect review, interaction checks, and a clear reason for each medication change.
Medication management → -
Medical Optimization for Plateaued Patients
For patients who are functioning but still unclear about sleep, labs, medication response, hormones, or metabolic factors.
Medication titration & weaning → -
Professional Optimization
Diagnostic work for executives, professionals, and high-responsibility patients whose focus, sleep, mood, and medical signals are tangled together.
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Executive Burnout & Fatigue
Medical-psychiatric evaluation of performance decline, including sleep, medication effects, mood, workload, and physiologic contributors.
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Second Opinions & Diagnostic Clarity
Fresh perspectives on unclear diagnoses. If you've been given multiple labels without a clear path forward, we can help.
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Pre-Surgical Psychiatric Clearance
Expert evaluations for surgical candidates (e.g., bariatric, transplant, spinal cord stimulator).
Interventional Psychiatry
When the standard playbook has already been tried
For depression that has outlasted adequate medication trials, the Gilbert office offers provider-supervised interventional options — evaluation first, monitored sessions, honest pricing on the page.
Ketamine Therapy — Gilbert, AZ
Take-home ketamine lozenges/troches and nasal spray for eligible Arizona adults. Starts with a $250 candidacy evaluation and an in-clinic trial assessment. Off-label, and we say so plainly.
Read the detailsSpravato (Esketamine) — Waitlist
The FDA-approved, insurance-based route for treatment-resistant depression. Coming to the Gilbert office; the waitlist is open now.
Join the waitlist
Treatment Approach
The Three-Phase Treatment Model
A structured path from diagnosis to long-term wellness
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Intensive Diagnosis
We identify the root causes and start targeted treatment. Frequent adjustments and close monitoring.
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Optimization
Fine-tuning the plan after the main pattern is clearer. We focus on function, tolerability, and realistic next steps.
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Maintenance
Long-term wellness. Simple quarterly check-ins to ensure you stay on track.
Our Clinical Team
Two clinicians, one intake path
Canybec Sulayman, PMHNP-BC, MBA, provides care through Horizon Peak Health in California and Arizona. Sharon Hernandez, PMHNP-BC, accepts appointment requests from California adults. The patient-care coordinator reviews state, clinical fit, insurance or self-pay, and current scheduling options before an evaluation is placed on the calendar.
Our Locations
Serving Arizona & California
California and Arizona access depends on state, visit type, and appointment format. We confirm the right location or telehealth path during scheduling.
- Gilbert, AZPhoenix Metro / East Valley · Official Arizona in-person location serving Gilbert and the East Valley
- Phoenix Area, AZPhoenix Metro via Gilbert · Arizona telehealth for Phoenix-area patients; Gilbert is the regular in-person base
- Chandler Area, AZEast Valley via Gilbert · Chandler-area patients can use Arizona telehealth or the Gilbert office
- San Francisco, CASan Francisco Bay Area · San Francisco practice location and California telehealth
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- Rancho Palos Verdes, CALA Metro / South Bay · Serving the South Bay, Palos Verdes Peninsula & LA County
- Torrance, CASouth Bay / LA County · Serving Torrance, Redondo Beach, Gardena & South Bay communities
- Long Beach, CALA Metro / Gateway Cities · Serving Long Beach, Lakewood, Signal Hill & LA County
Telehealth appointment requests accepted from California and Arizona residents
Experience Diagnostic Psychiatry
Appointment requests are reviewed for state, clinical fit, insurance or self-pay, and current scheduling options before an evaluation is confirmed.
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