

Glenview residents struggling with substance use, alcohol addiction, or behavioral addictions can access compassionate support through Headway's network of 757 licensed providers. Our specialists offer evidence-based modalities including CBT, DBT, Motivational Interviewing, and harm reduction strategies, with many providers offering free consultations and availability within two weeks.
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’m Shelly Lewin, LCSW/LICSW, a therapist with 31 years of experience helping adults navigate anxiety, depression, trauma, substance use, identity issues, and major life transitions. I provide virtual therapy across Arizona, Florida, Illinois, Kentucky, New Mexico, and West Virginia, offering accessible, evidence‐based care to clients seeking meaningful and lasting change. I have 30+ years of experience in private practice and leadership roles at organizations including:
This background allows me to offer deep clinical expertise paired with practical, real‐world understanding of how people heal and grow. My approach is warm, collaborative, open‐minded, and affirming. If you're feeling overwhelmed, stuck, or ready for change, I’m here to walk beside you with steady support and clinically grounded guidance. I specialize in therapy for adults experiencing:
Additional areas of expertise include: Bipolar disorder, OCD, grief & loss, workplace stress, anger management, cultural/ethnic identity issues, expat adjustment, relationship issues, family challenges, and end-of-life concerns
Starting therapy can feel overwhelming, but my goal is to create a safe, collaborative, and supportive space from our very first session—whether you come as an individual or as a couple.
My client-centered, trauma-informed approach means your stories, values, and goals shape the work we do together. I help teens, adults, and couples heal from past trauma, grief, addiction, navigate anxiety and depression, and build stronger, healthier relationships.
As a bilingual therapist (English and Spanish), I’m sensitive to the cultural and relational contexts that shape who you are and how you connect with others.
For clients who desire it, I can also integrate spiritual reflection into therapy, always honoring your level of comfort.


Headway makes it easier to find support for overcoming addiction — from finding the right provider, to understanding costs, to scheduling with ease.
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