Start Your
Healing Journey With Agave

At Agave Mental Wellness Institute, we provide compassionate, personalized care to support your mind, body, and overall well-being. Whether you’re navigating anxiety, depression, life transitions, or seeking self-discovery, we create a safe space for growth, resilience, and healing.

Begin your journey today — you don’t have to do it alone.

What We Offer

As a Board-Certified Psychiatric-Mental Health Nurse Practitioner (PMHNP-BC) team, we provide comprehensive mental health care for patients ages 5 and older. Our approach blends compassionate listening with evidence-based psychiatric treatment to support balance, clarity, and resilience.

Comprehensive Psychiatric Evaluations to understand each individual’s unique history, symptoms, and goals
Diagnosis and Treatment of a wide range of mental health conditions, including anxiety, depression, PTSD, bipolar disorder, ADHD, and more
Medication Management tailored to each patient’s needs, health history, and treatment goals
Supportive Psychotherapy and mindfulness-informed care to foster insight, coping skills, and emotional well-being
Collaborative, Whole-Person Care in partnership with therapists, primary care providers, and other wellness professionals to support integrated treatment outcomes

A comprehensive and compassionate assessment designed to understand your mental health needs, symptoms, history, and goals.
Through in-depth discussion, clinical tools, and diagnostic insight, I work to create a clear picture of your emotional well-being, laying the foundation for a personalized treatment plan.
This includes:
- Mental health history
- Current concerns and stressors
- Medical, social, and family background
- Diagnostic formulation and treatment recommendations
Thoughtful and evidence-based prescribing of psychiatric medications when appropriate, with a focus on safety, education, and collaboration.
I prioritize shared decision-making to ensure you feel confident and informed about your treatment. Regular follow-ups help monitor progress, manage side effects, and adjust treatment as needed.
Medication management includes:
- Ongoing psychiatric monitoring
- Evaluation of benefits, side effects, and interactions
- Dose adjustments and treatment optimization
- Education about how medications support healing

Who We Serve

At Agave Mental Wellness Institute, we provide compassionate, evidence-based mental health care for children, adolescents, and adults across Arizona.

Ages 6–65+

We serve a wide range of patients from school-aged children to older adults tailoring care to each stage of life.

In-Person Care in Tucson

We are physically located in Tucson and offer in-person psychiatric services for local patients seeking face-to-face care.

Statewide Telehealth Across Arizona

We provide secure, convenient telehealth services to patients throughout Arizona, allowing access to care from the comfort of home.

Our Team

Briana Tibbetts, MSN, PMHNP-BC

Briana is a Board-Certified Psychiatric Mental Health Nurse Practitioner, deeply committed to providing high-quality, compassionate mental health care to the community she calls home. She is dedicated to creating a safe, collaborative, and nonjudgmental environment where patients feel heard, understood, and empowered to take an active role in their mental health journey.
She brings over 11 years of healthcare experience, beginning her career with eight years in pharmacy before transitioning into nursing. This early foundation provided her with a strong understanding of psychopharmacology, medication mechanisms, and the importance of precision in medication management. She earned her Bachelor of Science in Nursing from the Arizona College of Nursing and completed her Master of Science in Nursing Psychiatric Mental Health Nurse Practitioner at Herzing University in 2025. Her clinical background includes experience in both the Neuro Intensive Care Unit and the Emergency Department, where she cared for medically complex and critically ill patients in high-acuity, fast-paced environments that required rapid clinical judgment, emotional resilience, and trauma-informed care.
She primarily focuses on comprehensive psychiatric evaluations and medication management, working with high-acuity outpatient populations across a wide range of psychiatric conditions. Her approach emphasizes careful diagnostic assessment, thoughtful medication selection, and ongoing monitoring to support stability, symptom reduction, and improved quality of life. With a strong foundation in both pharmacology and direct patient care, she integrates clinical evidence with individualized treatment planning, ensuring that each plan is tailored to the patient’s unique history, goals, and lived experience. She values shared decision-making and strives to ensure patients are informed, supported, and actively involved in every step of their care.
Briana’s clinical style is rooted in empathy, respect, and clear communication. She understands that mental health is deeply connected to life experiences, relationships, and environmental stressors, and she takes a holistic view of each individual’s needs. She is especially passionate about supporting couples navigating relationship challenges and co-parenting, children of divorced parents, teens and adults managing complex emotional and behavioral stressors, and individuals adapting to significant life changes such as chronic medical conditions, trauma, grief, or loss.
She incorporates developmentally appropriate and creative interventions when helpful, including elements of art- and play-informed approaches to help patients express themselves in ways that feel safe and natural—particularly for children and adolescents. She also integrates structured journaling and reflective practices to help patients build insight, identify emotional patterns, and strengthen self-awareness over time. Her goal is to meet patients where they are and help them build practical, sustainable skills that support long-term emotional wellness.

Psychiatric Nurse Practitioner

Claire is a Board-Certified Psychiatric Mental Health Nurse Practitioner. Originally from Louisville, Kentucky, she earned her Bachelor of Science in Nursing from the University of Louisville in 2019. She spent over six years working as a Registered Nurse in emergency medicine, where mental health care is an integral part of daily practice. Through this experience, Claire developed strong skills in crisis intervention, de-escalation, trauma-informed care, and compassionate communication with individuals experiencing acute psychiatric distress, substance use concerns, and complex psychosocial stressors.
After two years as a traveling nurse, Claire accepted a contract in Tucson, Arizona, where she quickly developed a deep appreciation for the desert landscape and surrounding community. She ultimately chose to make Tucson her home and has since become increasingly involved in the local area. Claire is proud to be part of Agave Mental Wellness Institute, where she is dedicated to providing comprehensive, patient-centered mental health care.
Driven by her passion for psychiatry, Claire earned her Master of Science in Nursing from the University of South Alabama, graduating in 2025. Claire has experience in both inpatient psychiatric hospital and outpatient mental health settings. Her clinical work includes conducting comprehensive psychiatric evaluations, medication management, and utilizing a range of psychotherapy modalities across the lifespan, with experience caring for patients from age 6 through older adulthood.
Claire continues to develop her therapeutic skill set with a strong emphasis on cognitive behavioral therapy (CBT), dialectical behavior therapy (DBT), mindfulness-based approaches, art therapy, supportive psychotherapy, motivational interviewing, exposure-based therapy, and Internal Family Systems (IFS). She has a particular passion for working with adolescents and adults navigating anxiety, depression, ADHD, OCD, and trauma-related conditions.
Claire is committed to providing collaborative, evidence-based, and compassionate care in a supportive, nonjudgmental environment. She believes in meeting patients where they are and empowering them to take an active role in their mental health and healing journey.

Claire Van Zyl, MSN, PMHNP-BC

Psychiatric Nurse Practitioner

Purpose, Mission, Vision

Our purpose of Agave Mental Wellness Institute is to provide accessible, compassionate, and evidence-based mental health care that honors the uniqueness of each individual. As a Psychiatric-Mental Health Nurse Practitioner-led practice, the focus is on supporting emotional well-being through a mindful, client-centered approach that integrates clinical expertise with genuine human connection.

Our mission is to deliver compassionate, evidence-based psychiatric care that nurtures mental, emotional, and spiritual well-being. Our practice is committed to creating a safe, inclusive, and supportive environment where individuals feel seen, heard, and valued, empowering them to engage in meaningful healing and personal growth.

Our vision is to redefine mental health care by cultivating a space where individuals feel empowered, understood, and supported throughout their journey toward emotional wellness. Agave Mental Wellness Institute aspires to set a standard for holistic, accessible, and patient-centered care that promotes lasting well-being and resilience.

What People Are Saying

“I am a first time therapy goer and at first I was naturally nervous/scared for it. Briana has been great and so welcoming. She is very interactive, helps me when I’m stuck, and very patient as I think through my thoughts or what I want to talk about. I’m definitely happy with my choice of seeking professional help as I work through some of my challenges I struggle with regarding my mental well being. I also enjoy the goal setting and journaling that I will do outside of our actual sessions. I’m eager to continue my journey and find success through each session.”

— RM

“It was wonderful! Briana listened to my concerns and offered multiple options to handle my particular situation so glad to have someone who listens for once!”

— BW