

Find mental health support in Joliet across neighborhoods like Downtown, West Side, and Essington. Headway connects you with 249 licensed providers offering virtual and in-person sessions. Many clients save up to 75% on care through insurance coverage, with some paying as little as $0 per session.
Hi, I’m Gretchen, a board-certified Psychiatric-Mental Health Nurse Practitioner (PMHNP, ANCC) with a Master of Science in Nursing from Lewis University. I work with individuals, teens, and families navigating anxiety, depression, trauma/PTSD, ADHD, and substance use concerns, providing care in both English and Spanish. I bring experience from emergency departments, inpatient units, outpatient clinics, and private practice, and I strive to create a safe, judgment-free space where clients feel heard, respected, and supported. I value collaboration and flexibility, tailoring each session to your needs so you can feel empowered to make meaningful changes.
With over 12 years of experience in nursing and behavioral health, I provide comprehensive psychiatric evaluations and medication management for children, adolescents, and adults ages 6 and older. My clinical interests include ADHD, anxiety disorders, depression, bipolar disorder, trauma-related conditions, stress-related concerns, and mood disorders.
I'm a board-certified Psychiatric-Mental Health Nurse Practitioner (PMHNP) with a strong passion for helping adults navigate mental health challenges with clarity and confidence. I earned my Master of Science in Nursing from Maryville University, where I specialized in psychiatric care across the lifespan.
My clinical approach is collaborative, warm, and rooted in evidence-based practices. I provide medication management and integrate psychoeducation to help clients better understand and manage symptoms related to anxiety, depression, OCD, ADHD, and trauma-related conditions. I believe in treating the whole person—not just the diagnosis—and in creating a safe, nonjudgmental space where you feel genuinely heard.
I currently see clients via telehealth only, offering flexible and convenient access to care from the comfort of your own space. Whether you're seeking your first psychiatric evaluation or continued support, my goal is to work with you to create a personalized treatment plan that supports your mental and emotional well-being.
Great to meet you. As a board-certified Psychiatric Mental Health Nurse Practitioner, I work to create a space where you feel seen, heard, and supported. My approach is warm, holistic, and open-minded, and I believe care works best when it is personalized to your needs, goals, and day-to-day reality.
I support clients navigating anxiety, depression, bipolar disorder, ADHD, PTSD, sleep concerns, OCD, panic, eating concerns, and anger or impulse-related challenges. Whether you are feeling overwhelmed, stuck, or simply ready for things to feel more manageable, my goal is to help you better understand what is going on and build a path forward that feels both realistic and empowering.
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).











Headway makes it easy to find support for your mental health — from finding the right provider, to understanding costs, to scheduling with ease.
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