

Access mental health support through your UnitedHealthcare plan in Peoria with flexible scheduling options. Through Headway's network of 1,002 providers, patients typically save 75% on sessions while receiving talk therapy and medication management support.
I'm Rachael Colley, a Psychiatric Mental Health Nurse Practitioner focused on psychiatric medication management with a practical, skills-based approach. My path ran through teaching and nursing before prescribing, so explaining things in plain language comes naturally, and I care about what works in your real life, not just what looks good on paper.
Who I work with I see adults, teens, and children, with particular depth in ADHD, anxiety, depression, mood disorders, perinatal and postpartum mental health, and binge eating disorder. I provide neurodiversity-affirming care and have a strong interest in supporting people navigating a late diagnosis, both the relief of finally having answers and the practical work of figuring out what comes next.
I offer early morning, evening, and weekend appointments across Arizona.
My name is Dr. Terrance Jackson, and I am a Psychiatric Mental Health Nurse Practitioner. I am so glad you're considering working with me to explore your mental health and well-being
I specialize in anxiety, depression, bipolar, ADHD, CBT therapy, and trauma-informed care. I’m committed to creating a non-judgmental, supportive, and safe space to work together to help you overcome challenges and achieve your personal goals.
My clients are the “overthinkers” in the world...with big feelings that are hard to explain. They feel misunderstood, lonely and isolated while striving to please others at the expense of themselves. They’re exhausted, overworked, and over-stressed, feeling like they’re never enough. They have a vision for life, but aren’t sure how to bring it together, especially after a life-changing event. They're also eager for change.
Does this sound like you? If so, I warmly welcome you to my practice.
Dr. MacKenzie ia board certified Adult and Child psychiatric NP and trained therapist Graduated Cum Laud from Case Western Reserve University in 2012 practicing in Texas, Oregon and most recently in Arizona since 2013. Prior to this he spent 10+ years as a Psychiatric and Critical Care RN in the community and a prior 10+ years in the US Army; where he learned a lot about anxiety, depression, grief and trauma. "I lived it, and with help I recovered. Then I studied what I myself have gone through to help others".
"If you think about it, there is no actual health without good mental health, and I work to help my clients achieve both."
Using the tools of Psychology as well as Psychiatric medication management (if appropriate), you can feel much better, function much better at home, work, and when you find yourself in those uncomfortable times.
Almost every symptom or unwanted trait can improve and in many cases, resolve completely, but only if you give it a chance.



Headway makes it easy to get affordable in-network mental health care with United Healthcare — from finding the right therapist or psychiatrist, to understanding costs, to booking your first session.
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