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NPI-verifiedMental Health · Phoenix Nurse practitioner–led practiceLast verified Oct 15, 2026

Summit Mental Health AZ

Nurse practitioner–led practice
This practice is owned and run by a nurse practitioner (NP), not a physician (MD/DO). In Arizona, nurse practitioners are licensed to examine, diagnose, treat and prescribe on their own. No physician is listed on staff here — if you need a doctor specifically, ask the office or choose a physician-led practice.

Based in Phoenix, Summit Mental Health AZ is a mental health practice, serving patients since 2023. Services include individual therapy, cancer supportive care, and genetic testing. The practice is accepting new patients, offers telehealth visits, online booking, Saturday hours, and provides care in English and Vietnamese. It accepts Medicare and Medicaid.

At a glance
Today
Hours listed
See hours
New patients
Welcome
Per its website
Insurance
2 plans listed
Confirm your plan when you call
Who you'll see
2 clinicians
Marilizabeth Birk, PMHNP-BC,RN, BA
Visits
In person + telehealth
Per its website
Languages
English, Vietnamese

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Who you'll see

Providers

MB
Marilizabeth Birk, PMHNP-BC,RN, BA
SW
Stephanie Winter, PMHNP-BC
Services

What this practice treats

Virtual or in-person sessionsPsychiatric evaluationsMedication managementStress management and coping skillsIndividual therapySubstance abuse disordersEating disordersCancer supportive careAddiction disordersGenetic testingLGBTQIA
Insurance

Plans accepted

MedicareMedicaid
Questions

Common questions about Summit Mental Health AZ.

Insurance, hours and new-patient availability change — confirm with the office before your visit.

Summit Mental Health AZ offers services including Virtual or in-person sessions, Psychiatric evaluations, Medication management, Stress management and coping skills, Individual therapy, Substance abuse disorders, Eating disorders, Cancer supportive care, and more.

Summit Mental Health AZ is listed as accepting Medicare, Medicaid.

Summit Mental Health AZ's website says it is accepting new patients.

Summit Mental Health AZ lists English and Vietnamese as languages spoken.

Summit Mental Health AZ's website lists telehealth visits.

Last verified Oct 15, 2026Report a correction

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