

Find mental health support in Fernandina Beach with 1,105 licensed providers offering talk therapy and medication management. Headway connects you with open-minded, solution-oriented providers across Amelia Island, downtown Fernandina, and surrounding neighborhoods, with sessions available virtually or in-person and coverage through major insurance plans.
I’m a warm and charismatic PMHNP who takes a holistic and participatory approach to care. I specialize in treating depression and anxiety, helping clients feel empowered and supported throughout their healing journey.
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.
Here is your answer. Now accepting patients 7 years and up for immediate virtual or in-person appointments. With more than 16 years providing care for families through the lifespan, I specialize in trauma, autism/ADHD, depression, and anxiety disorders. My focus is on addressing your symptoms and seeing you as a whole person, not just a diagnosis. I believe in working alongside you to develop a treatment plan that will best fit your needs from medication management to therapy and includes lifestyle changes.
I chose to practice as a Psychiatric Mental Health Nurse Practitioner because I am passionate about helping individuals improve their mental health and overall quality of life. Mental health challenges can significantly affect every aspect of a person’s well-being, relationships, and daily functioning, and I believe compassionate, patient-centered care can make a meaningful difference.
If you’re feeling overwhelmed, stuck, or simply not like yourself, you’re not alone—and you don’t have to navigate it on your own. Whether you're dealing with stress, anxiety, life transitions, or emotional burnout, therapy can help you regain clarity and control. Together, we’ll focus on understanding your full experience—not just symptoms—so you can move toward lasting, meaningful change and feel more grounded in your daily life.
Board-Certified Psychiatric Mental Health Nurse Practitioner (PMHNP-BC) with extensive utilization review, case management, hospice, and health informatics. Skilled in conducting comprehensive assessments, prescribing and managing medications, and delivering evidence-based therapies.
Diana Lankenau has a Master of Science in Nursing from Florida State University and Chamberlain University. She has a Bachelor's in nursing from University of Miami. BA in Psychology from Florida International University. She is Board Certified Psychiatric Mental Health Nurse Practitioner (PMHNP-BC) and Family Nurse Practitioner (FNP-BC).
I am a board-certified Psychiatric Nurse Practitioner and the founder of InnerGrowth Psychiatry and Wellness, where I provide compassionate, evidence-based care through both medication management and psychotherapy. My approach is rooted in the belief that healing is deeply personal, and each individual deserves to feel seen, heard, and supported without judgment.
I specialize in treating depression, anxiety, mood disorders, stress, and life transitions. I also support individuals navigating relationship challenges, social anxiety, and feelings of loneliness. My style is collaborative and patient-centered, I don’t believe in a “one-size-fits-all” approach. Instead, I work closely with you to understand your unique experiences, goals, and values, and we build a treatment plan together that feels right for you.
Clients often describe me as warm, attentive, and easy to talk to. I create a safe and supportive space where you can be open and honest, whether you’re seeking clarity, emotional healing, or personal growth. I integrate therapeutic techniques with thoughtful medication management when appropriate, ensuring that care is both holistic and effective.
My strength lies in my ability to balance clinical expertise with genuine human connection. I am deeply committed to helping you gain insight, develop coping strategies, and move toward a more balanced and fulfilling life.
Taking the first step toward mental wellness can feel overwhelming, but you don’t have to do it alone. I’m here to support you every step of the way.











Headway makes it easy to find support for your mental health — from finding the right provider, to understanding costs, to scheduling with ease.
Finding psychiatrists in Fernandina Beach starts with knowing which type of care fits your needs. Psychiatrists and psychiatric nurse practitioners can diagnose mental health conditions and prescribe medication, while therapists provide talk therapy. Medication management may support concerns such as anxiety, depression, ADHD, bipolar disorder, or OCD. Some people start with a prescriber, some start with a therapist, and some work with both. As you compare options, look for a psychiatrist whose listed specialties, clinical background, and approach match the kind of support you want.
In a smaller coastal community like Fernandina Beach and Amelia Island, local psychiatry options may be more limited than in larger nearby areas. Virtual appointments can expand your search while still letting you stay close to home for care. Psychiatric medication management visits are often shorter and less frequent than therapy sessions, though some psychiatrists also offer talk therapy. When reviewing profiles, check appointment availability, whether a free phone consultation is offered, and how the psychiatrist describes their communication style.
Psychiatric care in Fernandina Beach can be a significant expense without insurance. Using in-network coverage is one of the most reliable ways to reduce session costs. Headway helps you find psychiatrists who accept your plan, are accepting new patients, and offer virtual or in-person appointments when available. You can add your insurance details, see your estimated cost before booking, review bios, and book directly when you’re ready.
If you're already taking psychiatric medication and considering switching providers, talk to your current prescriber before changing or stopping any medication — most psychiatric medications shouldn't be stopped abruptly. Anyone experiencing thoughts of self-harm or in acute crisis should call 988 or go to the nearest emergency department rather than wait for an outpatient appointment.
Use left and right arrow keys to switch tabs. Press Shift+Tab to return to the tab list from links in the selected tab.