Dr. Mary Ann Dier-Zimmermann, LCPC

Licensed in Illinois · 35 years in practice

Dr. Mary Ann Dier-Zimmermann is a Licensed Clinical Professional Counselor (LCPC) based in Illinois with 35 years of experience.

License and registration

LCPC, Illinois: 180-001433 · expires March 2027
NPI: 1336298306 · national provider identifier
Years in practice: 35
Languages: 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 (LCPC) based in Illinois with 35 years of experience. She focuses on helping people who feel stuck by offering steady attention and practical steps.

Her way of working aims to make daily life feel more manageable and meaningful. She listens carefully and treats each person with respect. Sessions explore depression, anxiety, grief, trauma, relationship struggles, addictions, parenting stress, and identity questions related to LGBT issues.

Background and approach

She also addresses challenges like abandonment, caregiving strain, body image, and life transitions. Her approach blends Acceptance and Commitment Therapy, attachment-focused ideas, and client-centered listening. That means clients notice what matters most, learn to accept difficult feelings, and build choices that match their values.

Relationship work can draw on tools from the Gottman Method and Imago ideas when relevant. Dr. Dier-Zimmermann brings a background that connects psychology with religion and spirituality when clients want that explored.

She helps people fold their beliefs into therapy in ways that feel authentic and useful. Assessments and clear plans are offered so work in sessions stays focused and practical. People who prefer calm, respectful conversation and straightforward guidance often find this style helpful.

The therapist meets clients where they are without judgment and works together with them to expand supports and awareness. Her goal is steady progress toward greater well-being.

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

Naming an approach is not evidence of training in it. This directory copies what each therapist lists and does not check training records.

Online support

How her approaches fit with online therapy

Acceptance and Commitment Therapy (ACT) helps people notice difficult thoughts and feelings and choose actions that match their values. Online ACT work often includes short exercises, values clarification, and practical steps to try between sessions. Attachment-Based Therapy focuses on patterns in close relationships and how early bonds shape current connections; online sessions can map those patterns and practice new ways of relating. Client-Centered Therapy centers the conversation on the person's perspective, offering empathetic listening and reflection to help build self-understanding.

Finding the right approach is part of the work together. The therapist will listen to goals, preferences, and life context, and then recommend methods that make sense. That decision is collaborative, and methods can be adjusted as needs change.

Online formats include video calls, phone sessions, live chat, and text-based messaging. Video is useful for conversation and visual cues, phone calls work well when bandwidth is limited, live chat lets people check in quickly, and text messaging supports brief or ongoing check-ins between appointments. These options make scheduling more flexible and help therapy fit into busy days.

We will earn a commission if you sign up through our link, at no cost to you. It does not change what you pay or the order of the listings.

Questions people ask

What concerns does Dr. Dier-Zimmermann address?

She works with a wide range of concerns including stress, anxiety, depression, bipolar disorder, addictions, trauma and grief. Other areas include relationship and intimacy issues, parenting strain, LGBT matters, and career or life change challenges.

How would you describe her therapeutic style?

Her style combines attentive listening with practical planning and values-based work. She uses client-centered conversation alongside approaches that focus on acceptance, attachment, and relational tools.

How much experience does she have?

She brings 35 years of clinical experience to her practice. That background informs both assessment and ongoing treatment planning.

What credentials and location are on file?

She is listed as a Licensed Clinical Professional Counselor, IL LCPC, and she practices in Illinois.

Can I work with her if I live outside the United States?

Sessions are offered in English and international clients are not currently accepted. Work is focused on people located within the supported region.

What session formats are available?

Sessions can be scheduled as video calls, phone sessions, live chat, or text-based messaging to suit different needs and routines.

How does payment and cost work?

Cost varies with location and therapist availability; sessions use a subscription model that can be canceled at any time. Exact pricing depends on the matching process and regional factors.

How do I begin working with her?

Start by selecting the Start Therapy button and completing a short matching questionnaire. After that you can schedule sessions according to the therapist's availability.

Is this your profile?

Ask us to correct details or take the page down.