Obsessive-compulsive disorder therapists & psychiatrists in Oak Park, IL

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).

Often, struggles can become gateways to transformation. Many of the clients I work with are navigating low self-esteem, anxiety, depression, chronic stress, trauma, grief, or major life transitions that leave them feeling overwhelmed, stuck, or disconnected. You may be experiencing racing thoughts, emotional exhaustion, relationship difficulties, loss, or uncertainty about your direction in life. When we begin to explore these experiences with compassion and curiosity, new perspectives and meaningful change can emerge.

I believe telling your story in a safe, supportive space can be deeply healing. I want to hear about your hopes, dreams, challenges, and losses. My goal is to help you better understand your experiences, develop emotional resilience, and move toward greater clarity and self-acceptance. You are not alone, and I am here to walk alongside you as you move forward on your journey toward healing and growth.

I’m a Psychiatric Mental Health Nurse Practitioner (PMHNP) and mom of four with a passion for helping people feel balanced, understood, and supported. I earned my nursing degree from Chamberlain University in Chicago and completed my psychiatric graduate training at the University of Kentucky. I’ve been proudly serving patients as a PMHNP since 2022.

I provide care for children (6+), teens, and adults, including parents, professionals, students, and anyone navigating life transitions or emotional challenges. My focus areas include: ADHD, anxiety & panic, depression, bipolar disorders, trauma & PTSD, emotional dysregulation and impulsivity, sleep issues, and mood and behavior concerns in children/teens.

Mental health has been an important part of my journey from the very beginning. I graduated from the University of St. Francis while working in inpatient behavioral health, where I learned how meaningful it is to meet people with kindness, patience, and understanding during difficult moments. I spent time working in medical-surgical settings to broaden my experience, but I was drawn back to mental health because it’s where I feel most connected to my work.

I provide care through telehealth and aim to make virtual visits feel as comfortable and easy as possible. I know it can take time to feel at ease talking through a screen, and I focus on creating a space that feels supportive, relaxed, and judgment-free. I take a collaborative approach, listening closely and working with you to find treatment options that fit your needs and your life.

I work with children, adolescents, and adults experiencing anxiety, depression, ADHD, OCD, mood disorders, and related concerns. My goal is for you to feel heard, respected, and supported as we work together toward feeling better and more balanced in your day-to-day life.

As a therapist, my top priority is proving my clients with trauma informed and empathetic care. My approach to therapy is to meet my clients where they are and work in collaboration to help them achieve their highest potential.

Hi, I'm Tierra Kinnard, LCSW, and founder of Step by Step Healing Services, LLC. With more than 16 years of experience in the mental health field, I am passionate about helping individuals navigate life's challenges with compassion, understanding, and evidence-based care. I believe healing begins in a space where you feel safe, heard, and accepted exactly as you are. I specialize in treating Obsessive-Compulsive Disorder (OCD), Excoriation (Skin Picking Disorder), Trichotillomania (Hair Pulling Disorder), anxiety, depression, trauma, and grief and loss. Throughout my career, I have had the privilege of supporting individuals from diverse backgrounds, including members of the BIPOC and LGBTQIA+ communities. I understand the profound impact that mental health challenges can have on individuals, families, and relationships, and I am committed to helping clients build resilience, find relief, and create meaningful change

I am a Licensed Clinical Social Worker (LCSW) with over 20 years of professional experience supporting children and families. Throughout my career, I have primarily worked with school-age children and their families, helping them navigate emotional, behavioral, and life challenges with compassion and practical guidance.

I’m dedicated to providing compassionate, evidence-based mental health care for individuals of all backgrounds. My goal is to create a safe space where you feel supported, understood, and empowered to take control of your mental well-being. I value collaboration, transparency, and genuine connection in the healing process.

As a Licensed Clinical Social Worker, I believe that prioritizing mental health is an integral part of quality of life. Congratulations on taking the first step towards self improvement! I have been practicing for 20 years with a focus on individuals experiencing depression, anxiety, ADHD, and difficulty with life transitions. I am also passionate about working with couples who are experiencing disconnection, conflict, and communication issues.

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With almost a decade of experience working as a therapist, I have supported and worked with a diverse population of children, adolescents, adults, and couples through a variety of life challenges. My clinical interests include working with adults to maneuver life challenges around identity and narrative work, role exploration, attachment, and understanding complexities around family dynamics as an adult, all through a relational lens. I became a therapist because I truly believe in the importance of self-discovery and growth and I enjoy collaboratively working with clients to support, encourage, and acquire skills to better manage and understand their stressors, allowing them to feel more empowered and in control of their life.