About Us

Marcann Mental Health provides the highest quality mental health services to adults in Phoenix, Glendale, Sun City West, and Casa Grande area of Arizona. We utilize psychotherapy, medications, and evidence-based therapies to improve overall mental health and function for people living with mental health disorders.
 
The team offers solutions for anxiety, post-traumatic stress disorder (PTSD), and schizophrenia. They work closely with individuals to determine which treatment options are the best fit.
 
The Marcann team also provides comprehensive outpatient care and resources for those struggling with addiction to substances or risky behaviors. They use cognitive behavioral therapy (CBT) techniques to help people make positive changes in their lives and find long-term success in recovery.
 
The providers take a compassionate approach to care and realize how difficult it can be to cope with the impact mental health disorders have on a person’s life. They work closely with each person to understand what’s affecting their mental and emotional wellness so they can create a personalized treatment plan using the latest integrative and holistic approaches.
 
Office hours are available Monday through Saturday (at select locations), and the team can meet with patients virtually through an online video conferencing platform.
 
To schedule a consultation for mental health services, call the Marcann Mental Health office at 602-824-9309 today.

In-Office Providers

Dr. Steve Domann.

Dr. Steve Domann - Clinical Psychologist

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Mariza Marcili.

Mariza Marcili - Psychiatric Nurse Practitioner

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Ashley Picone - Psychiatric Nurse Practitioner​

Ashley is a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP) with 23 years of experience as a therapist. Helping others has always been her passion, and she is committed to creating a safe, supportive, and nonjudgmental environment where patients feel heard and understood. Her goal is to empower individuals to improve their mental health, build resilience, and achieve lasting wellness through compassionate, personalized care.
 

Timothy Headley - Psychiatric Nurse Practitioner​

Timothy Headley MSN, PMHNP-BC is a board certified psychiatric mental health nurse practitioner with over 5 years of experience in psychiatric nursing and psychiatry. He is licensed in psychiatric care across the lifespan and provides psychiatric medication management services as well as psychotherapy. Timothy is committed to providing a holistic approach to improving your mental health and reaching your personal goals.

Mobile Providers

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Jessica Decker - Psychiatric Nurse Practitioner​

Jessica Decker, MSN, PMHNP-BC is a Board Certified Psychiatric Mental Health Nurse Practitioner with Marcann Mental Health. Jessica earned her master’s degree as a Nurse Practitioner with a specialization in Psychiatric-Mental Health across the age span. She is licensed to treat both pediatrics and adults but specializes in care for adults and seniors.

Jessica believes that mental healthcare is a necessary component of wellness. She practices with the belief that treatment will look different for each individual and is a collaboration between the patient and the provider. Treatment of a person’s mental health can include any combination of therapy, medications, and lifestyle.

Jessica looks forward to being a partner with you in your journey to Mental Health Wellness.

Mariza Marcili.

Mariza Marcili - Psychiatric Nurse Practitioner​

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Laura Holladay - Psychiatric Nurse Practitioner​

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Lleva Groves - Psychiatric Nurse Practitioner​

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Michaela Mathis - Psychiatric Nurse Practitioner​

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Nicole Arp - Psychiatric Nurse Practitioner​

Content coming soon!

Ashley Picone - Psychiatric Nurse Practitioner​

Ashley is a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP) with 23 years of experience as a therapist. Helping others has always been her passion, and she is committed to creating a safe, supportive, and nonjudgmental environment where patients feel heard and understood. Her goal is to empower individuals to improve their mental health, build resilience, and achieve lasting wellness through compassionate, personalized care.
 

Timothy Headley - Psychiatric Nurse Practitioner​

Timothy Headley MSN, PMHNP-BC is a board certified psychiatric mental health nurse practitioner with over 5 years of experience in psychiatric nursing and psychiatry. He is licensed in psychiatric care across the lifespan and provides psychiatric medication management services as well as psychotherapy. Timothy is committed to providing a holistic approach to improving your mental health and reaching your personal goals.