Addiction therapists & psychiatrists in Glenview, IL

Dr. Opelt earned his Ph.D. in Counseling Psychology at New Mexico State University after completing his Master’s of Science in Educational Psychology: Community Counseling from the University of Wisconsin - Milwaukee. During his graduate training, he earned certifications in Trauma Counseling and Multicultural Knowledge Basis in Mental Health Practices, and a graduate minor in Integrated Behavioral Health. Dr. Opelt has completed postdoctoral fellowships in research in Rehabilitation Psychology, with an emphasis on Multiple Sclerosis, at Johns Hopkins School of Medicine, and in clinical Rehabilitation and Pain Psychology at MedStar Health National Rehabilitation Hospital. He has focused his clinical work on adults who have concerns about insomnia, cognitive impairment, addiction, LGBT+ concerns, caregiver support, transplants, burn survivors, cancer, musculoskeletal diseases like MS and Parkinson’s disease, and those who have amputations. He is a licensed psychologist in Maryland and Illinois.

My nursing career began in 2010 when I first became a Registered Nurse. In 2017 I graduated from Maryville University in St. Louis, MO with my master’s degree in nursing and became a board-certified Family Nurse Practitioner (FNP-C) licensed in Illinois. I have been blessed to work in many facets of healthcare since and has also become a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP-BC). With a strong foundation in both primary care and mental health, my approach aligns overall wellness and hormone optimization with physical, mental, and lifestyle well-being.

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.

Starting therapy can feel intimidating, but you don’t have to figure things out alone. I’m Tamara Whittleton, a Licensed Clinical Social Worker who works with adults navigating stress, anxiety, depression, and major life changes. I focus on creating a supportive environment where clients feel comfortable talking openly while developing practical strategies for growth and healing

Hello and thank you for taking the time to reach out! Do you ever have those days when things are especially difficult?? When "Life is Lifing" as we say?? Many of the people that I meet and work with are looking for support with mental health, substance abuse, and/or management of traumatic events. I'm a Licensed Clinical Social Worker as well as a Certified Alcohol and Drug Counselor. I'm also a Mom of three and a dog Mom of two who likes to practice what I preach in my own life. As a strong believer in the mental/physical health connection, a lot of my focus is incorporating integrated health into our treatment approach. I also support an intimate hospice team in my area so I am comfortable having uncomfortable conversations about life. If you are interesting in giving therapy a shot, or just learning a bit more about my approach, feel free to reach out and we'll see where it takes us.

Choosing the right provider is a big step, and I'm here to offer a unique blend of expertise and genuine support. I'm a dual board-certified Psychiatric-Mental Health Nurse Practitioner (PMHNP) and Family Nurse Practitioner (FNP), and a Certified Advanced Practice Addictions Nurse. What does this mean for you? It means I can offer truly integrated care, understanding how your physical and mental health are connected, and providing specialized support for addiction.

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).