Dr. Mary Ann Dier-Zimmermann, LCPC
Therapist in Illinois
Dr.
- License 180-001433 · Illinois Expires March 2027
- NPI 1336298306 · national registry
- Experience and languages 35+ years in practice English
Details are as listed on the therapist's public professional profile. You can check any license with the state board and any NPI with the national registry.
About Mary
Dr. Mary Ann Dier-Zimmermann is a Licensed Clinical Professional Counselor in Illinois with 35 years of experience. She focuses on helping people who feel stuck by listening closely and treating each person with respect.
Her approach is grounded in practical steps and steady support rather than quick fixes. She works with stress, anxiety, depression, grief, addictions, relationship and intimacy concerns, and issues related to LGBT identity. She also helps people facing parenting strain, career changes, compassion fatigue, and the long-term effects of trauma and abuse.
Background and approach
Additional areas include adoption and foster care, attachment wounds, blended family issues, body image, caregiving stress, and coping after separation or loss. Mary Ann blends relationship-focused methods and acceptance-based work to match a person’s needs. She places attention on how connections with others affect healing and helps clients build clearer communication and stronger support networks.
Sessions include an assessment and a plan shaped together with the client. She also uses ideas from existential and client-centered approaches to help people find meaning, make values-based choices, and regain a sense of control. Those who bring spiritual or religious concerns can explore how beliefs fit into recovery and growth.
Mary Ann meets people where they are and aims to create a calm, nonjudgmental space for change. Practical steps, steady listening, and respect for a person’s life story guide her work. Therapy is collaborative, and goals are set together so progress fits real life.
Credentials
- LCPC (Illinois)
- License 180-001433 · expires March 2027
- NPI
- 1336298306 · national provider identifier
Both are public records. A state board register will confirm a license and its standing, and the national registry will confirm an NPI. This directory copies what the therapist lists and checks neither.
Focus areas and approaches
Everything Mary lists on their public professional profile, in their own terms.
- Stress, Anxiety
- LGBT
- Relationship issues
- Bipolar disorder
- Depression
- Addictions
- Family conflicts
- Trauma and abuse
- Grief
- Intimacy-related issues
- Parenting issues
- Anger management
- Self esteem
- Career difficulties
- Coping with life changes
- Compassion fatigue
- Abandonment
- Adoption and foster care
- Aging and geriatric issues
- Attachment issues
- Avoidant personality
- Blended family issues
- Body image
- Cancer
- Caregiver issues and stress
- Codependency
- Commitment issues
- Coping with natural or human-caused disaster
- Dependent personality
- Dissociation
- Divorce and separation
- Emptiness
- Family of origin issues
- Family problems
- Fatherhood issues
- Forgiveness
- Gender dysphoria
- Guilt and shame
- Hospice and end-of-life counseling
- Infidelity
- Isolation / loneliness
- Life purpose
- Midlife crisis
- Mood disorders
- Multicultural concerns
- Narcissism
- Personality disorders
- Post-traumatic stress
- Prejudice and discrimination
- Process addiction (porn, exercise, gambling)
- Seasonal Affective Disorder (SAD)
- Self-harm
- Self-love
- Sexuality
- Women's issues
- Workplace issues
- Young adult issues
Approaches Mary names
- Gottman Method
- Acceptance and Commitment Therapy (ACT)
- Attachment-Based Therapy
- Client-Centered Therapy
- Existential Therapy
- Imago Relationship Therapy
- Jungian Therapy
- Mindfulness Therapy
- Psychodynamic Therapy
- Solution-Focused Therapy
These are the approaches Mary names on their own professional profile. Naming an approach is not evidence of training or certification in it, and this directory checks no training records. Ask directly if it matters to you.
Online support
How relationship work and acceptance-based therapy translate online
Gottman Method ideas focus on improving how people communicate and manage conflict in close relationships. Online sessions can be used to practice these skills with real-time feedback, role play, and step-by-step skill building to improve listening and connection.Acceptance and Commitment Therapy (ACT) helps people notice unhelpful thoughts and commit to actions that match their values. In online sessions ACT techniques can include values clarification, simple exercises, and homework that fit into daily life to reduce avoidance and increase meaningful action.
Finding the right approach is part of the work. The therapist will talk with each person about symptoms, goals, and preferences, and suggest which methods to try first. That plan is adjusted over time based on what helps most, so therapy stays collaborative and practical.
Online formats include video calls, phone sessions, live chat, and text-based messaging. Video is useful for role play and visual cues, phone calls are helpful when bandwidth is low, and messaging or chat can support shorter check-ins or between-session tracking. These options make it easier to fit therapy into a busy life and to keep momentum between meetings.
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Frequently asked
What concerns does she help with?
She helps with stress, anxiety, depression, bipolar disorder, addictions, grief, trauma and abuse, intimacy-related issues, and a wide range of relationship and life-change concerns.
What is her therapeutic style like?
Her style is attentive and collaborative. She combines relationship-focused work with acceptance and meaning-based approaches to set achievable goals and build stronger connections.
How much experience does she have?
She has 35 years of clinical experience working with adults across many life challenges and transitions.
What are her credentials and where is she located?
She is an Illinois Licensed Clinical Professional Counselor (LCPC) practicing in Illinois.
Does she offer sessions in other languages or to international clients?
Sessions are offered in English. She is not accepting international clients.
What session formats are available?
Sessions can be done by video calls, phone sessions, live chat, or text-based messaging to fit different schedules and needs.
How is cost handled for sessions?
Cost varies with location and therapist availability; sessions use a subscription model that can be canceled at any time.
How do I begin working with her?
Start by selecting the Start Therapy button, completing a short matching questionnaire, and then scheduling sessions according to therapist availability.
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