Find a psychiatrist in Winter Haven, FL — covered by insurance

A Florida and Polk County native, Mirtha is a graduate of Frostproof High School. She is board certified as both a Psychiatric Mental Health Nurse Practitioner and an Autonomous Primary Care Nurse Practitioner. She earned a Bachelor's of Nursing from Polk State and a Master's of Nursing from USF. In 2023 Mirtha earned a Post Master's Certification in Psychiatry from Florida Atlantic University. However, her journey as a mental health provider began in 2020 when she became certified through the Academy of Christian Counseling, as a mental health coach. Then in January of 2025 she became an active member of the Order of Saint Luke (OSL) a healing ministry.

Mirtha has nearly 20 years of experience in healthcare. Her passion is caring for individuals struggling with mental health issues. She has been volunteering with the youth in her community for over 7 years and also has experience working in a domestic violence shelter with victims of trauma.

If you are struggling with depression, anxiety, ADHD, and more, we are here to support you. Seeking help and opening up to someone new can be intimidating, but it's a brave step towards healing. I understand the importance of a supportive and personalized approach, which enables me to offer effective treatment plans tailored to your unique circumstances. I treat a variety of mental health conditions including anxiety, depression, ADHD, sleep disorders, postpartum depression, PTSD, bipolar disorder, panic attacks, OCD, among others. My extensive experience in a variety of mental health settings has equipped me to address both common and complex mental health needs with compassion and expertise.

I am a Board-Certified Psychiatric Nurse Practitioner with 26 years of nursing experience in various capacities, including psychiatric mental health and addiction medicine for the last 8 years. My passion is to walk alongside my patients on their mental health journey, helping them navigate challenges, cultivate lasting wellness, and restore balance for a meaningful and fulfilling life.

Hi! I'm Dr. Miller, a Psychiatric Nurse Practitioner with over 30 years of experience in mental health and wellness care. My journey has taken me from earning my BSN at Barry University to my MSN and FNP at the University of Miami, a Post-Master's as a Psych NP from the University of Alabama, and a Doctorate in Nursing Practice from FIU. That depth of training means I bring both clinical expertise and genuine, hard-earned wisdom to every person I work with.

Great to meet you!

I'm a board certified Psychiatric Mental Health Nurse Practitioner with experience in the mental health psychiatric field ranging from child and adult outpatient care to substance abuse treatment. I received my Bachelor of Science in Nursing at Ohio University and Master of Science in Psychiatry from St, Thomas University in Miami, FL.

I specialize in mood disorders (including depression and bipolar disorder), anxiety (generalized anxiety disorder, panic disorder, and social anxiety), and trauma-related conditions including PTSD. I am deeply committed to breaking the stigma surrounding mental health — and I understand firsthand how shame and silence can stand in the way of healing and daily functioning. Outside of work, I'm a parent who enjoys going to the pool and playing board games with my children, which keeps me grounded in the everyday joys that matter most.

I’m a board-certified Psychiatric Mental Health Nurse Practitioner dedicated to making high-quality mental health care accessible to everyone, especially individuals in underserved and rural communities. Throughout my career, I’ve had the privilege of caring for children, adolescents, adults, and older adults in homes, assisted living facilities, group homes, and through telehealth.

I believe mental health care should be compassionate, collaborative, and free of judgment. My goal is to create a space where you feel heard, respected, and comfortable being yourself. Whether you’re struggling with anxiety, depression, ADHD, bipolar disorder, trauma, grief, or another mental health concern, we’ll work together to build a treatment plan that fits your life, not someone else’s.

I combine evidence-based medicine with a whole-person approach, recognizing that sleep, stress, relationships, physical health, and daily habits all play an important role in emotional well-being. My priority is helping you feel better while empowering you with the tools to thrive long after our appointments.

I am a psychiatric provider who specializes in working with adults experiencing anxiety and depression, and I’m passionate about creating a space where you feel genuinely seen and heard. My clinical background includes formal training in evidence-based treatments for mood and anxiety disorders, and I have experience supporting clients from diverse cultural and personal backgrounds. I strive to bring both professional expertise and a warm, grounded presence to every session so that you feel comfortable sharing what’s really going on in your life.