Find a psychiatrist in Tempe, AZ — covered by insurance

I’m a Psychiatric Nurse Practitioner and come from a background of 17 years in healthcare. My approach to care is holistic, compassionate, and grounded in understanding each person’s story. I work with individuals experiencing stress, anxiety, depression, ADHD, grief, loss, and chronic conditions to name a few. I’m especially passionate about supporting Native American communities.

Clients often describe me as warm, patient, and easy to talk to. My goal is to create a safe space where you feel seen, supported, and empowered to take steps toward lasting mental wellness.

If anxiety, depression, ADHD, or life's challenges have left you feeling stuck, overwhelmed, or unlike yourself, you don't have to figure it out alone. I'm Mark Lindsay, a Psychiatric Mental Health Nurse Practitioner and Family Nurse Practitioner who believes mental health care should be approachable, practical, and centered around you. By combining my medical and psychiatric experience, I look beyond symptoms to understand the full picture, helping you find real solutions that restore confidence, improve daily life, and move you toward lasting wellness.

I believe mental health treatment works best as a collaborative partnership. I take time to understand each client's unique experiences, symptoms, strengths, and goals before developing an individualized treatment plan. Treatment may include medication management, psychoeducation, lifestyle recommendations, and referrals for therapy or additional services when appropriate.

I'm a psychiatric mental health nurse practitioner who supports teens, young adults, and families working through constant worry, big emotions, focus challenges, and the impact of difficult life experiences. Before specializing in psychiatry five years ago, I spent 13 yeas in emergency medicine, where I learned how deeply people need to feel seen and supported during overwhelming moments. That experience shaped my approach today: blending medical expertise with genuine curiosity, compassion, and respect for YOUR story. My goal is to create a space where you feel, safe, understood, and able to explore what you are going through with clarity and confidence.

I provide compassionate, confidential psychiatric care designed to help you feel supported and understood. Each treatment plan is personalized, using evidence-based approaches tailored to your unique needs and goals. My goal is to create a safe, judgment-free space where we can work together to manage challenges such as anxiety, depression, mood changes, or sleep issues. Appointments are available virtually for your convenience.

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.