

Find mental health support in Lakeland, Florida across neighborhoods like Downtown, Southgate, and Kathleen. Headway connects you with 1,103 licensed providers offering virtual and in-person sessions. Many patients save up to 75% on care through insurance, with some paying as little as $0 per session.
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).
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.
My practice style is open minded, solution focused, and direct to the point. I love to help any individual from a humanistic point of view. I am extremely empathetic, love to be honest and being honest with my patients is key in my every day practice.
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.
I believe that seeking mental health care is a courageous step, and I strive to create a welcoming, supportive, and judgment-free space for every client. My goal is to ensure you feel heard, understood, and comfortable throughout your treatment journey. Together, we will work collaboratively to develop a personalized treatment plan that supports your unique needs and goals
Seeking mental health support is a great act of courage. I am Dr. Glenda Grones, a board-certified Psychiatric Mental Health Nurse Practitioner with a PhD in nursing research. My practice is dedicated to providing high-quality, evidence-based psychiatric care for adults and children (ages 8+) across Florida via a secure telehealth platform.
As a Retired Veteran, I have a personal and professional mission to support those who have served. I understand the unique culture and challenges of military life, and I am honored to offer a safe, stigma-free space where veterans and their families can receive the specialized care they deserve.
My goal is to help you overcome the challenges you are facing in a safe and comfortable environment to help you improve your quality of life. My passion is helping those with substance use disorders, including alcohol and opioid use disorder, safely detox from the substances and work towards a meaningful and long-lasting recovery. With a decade of experience serving a wide range of patients I am a dual-certified family nurse practitioner and psychiatric mental health nurse practitioner.
CURRENTLY ACCEPTING NEW PATIENTS WITH SAME-DAY APPOINTMENTS AVAILABLE.
I provide psychiatric care for adolescents and adults struggling with ADHD, anxiety, depression, and mood disorders. Many of my clients feel overwhelmed, mentally exhausted, unfocused, or stuck—and are ready for real, practical support.
I specialize in helping individuals improve focus, reduce anxiety, and regain emotional stability so they can function better at work, school, and in relationships. Whether you're dealing with racing thoughts, difficulty concentrating, or persistent stress, I offer personalized, evidence-based treatment tailored to your goals.
My approach is supportive, nonjudgmental, and results-driven. I work with motivated individuals who want clarity, balance, and lasting change.
I want you to know that my role is to support you with compassion, respect, and evidence‐based care. I take the time to listen closely so I can understand what you’re experiencing and what matters most to you. My approach is collaborative—I believe treatment works best when we make decisions together. I’m here to provide a safe, nonjudgmental space where you can speak openly and feel heard. My goal is to help you move toward stability, confidence, and a better quality of life.











Headway makes it easy to find support for your mental health — from finding the right provider, to understanding costs, to scheduling with ease.
Finding the right psychiatrist in Lakeland starts with understanding the type of care you need. Psychiatrists and psychiatric mental health nurse practitioners can diagnose mental health conditions, prescribe medication, and manage medication over time. Therapists focus on talk therapy and support. If you are looking for care for anxiety, depression, ADHD, bipolar disorder, or obsessive-compulsive disorder, both therapy and psychiatry may be useful options depending on your needs. Look for a psychiatrist whose listed specialties, training, and approach match what you want support with.
In a mid-size market like Lakeland, your search may include psychiatrists near Downtown, Southgate, Kathleen, or nearby areas, plus virtual appointments across Florida. Medication management visits are often shorter and less frequent than therapy sessions, so schedule fit can matter as much as location. Some psychiatrists also offer therapy, and some people see both a therapist and a prescriber. Before booking, review each psychiatrist’s bio for focus areas, appointment format, availability, and whether they offer a free phone consultation.
Psychiatric care in Lakeland can be a significant expense without insurance. Using in-network insurance is one of the most reliable ways to reduce session costs and understand what you may pay before care begins. Headway helps you search psychiatrists who are accepting new patients, add your insurance details, see estimated out-of-pocket costs upfront, and book directly when you are 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.
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