Dr.
01About Mary
Dr. Mary Ann Dier-Zimmermann is an Illinois-based Licensed Clinical Professional Counselor (LCPC) with 35 years of practice. She centers her work on helping people move from feeling stuck to feeling more whole.
She listens with steady attention and treats each person with respect. Her approach is straightforward and collaborative. She starts with an assessment and a plan you can understand.
Sessions often focus on practical steps for depression, anxiety, grief, bipolar concerns, and addiction, as well as relationship and intimacy issues.
Background and approach
She also works with parenting stresses, family conflict, career worries, and the emotional fallout from loss or trauma. People who identify as LGBT will find openness to sexual orientation and gender identity in her practice. She pays attention to how faith and spirituality might matter to someone, when that is important to them.
Dr. Dier-Zimmermann uses therapies that help people accept tough feelings, strengthen close bonds, and center the person in the room. That can mean noticing values, exploring attachment patterns, or simply offering a listening space so new choices become possible.
In sessions she focuses on clear goals and doable steps. The tone is compassionate and nonjudgmental. For those coping with major life changes, chronic stress, or caregiving strain, she helps map practical ways forward.
02Credentials
- 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 counselor lists and checks neither.
03Focus 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
Methods Mary names
- Acceptance and Commitment Therapy (ACT)
- Attachment-Based Therapy
- Client-Centered Therapy
- Existential Therapy
- Gottman Method
- Imago Relationship Therapy
- Jungian Therapy
- Mindfulness Therapy
- Psychodynamic Therapy
- Solution-Focused Therapy
These are the methods 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.
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04Online support
Online approaches that focus on values and relationships
Dr. Dier-Zimmermann draws on Acceptance and Commitment Therapy and Attachment-Based Therapy in online work. Acceptance and Commitment Therapy (ACT) helps people notice difficult thoughts and feelings without getting held by them, then choose actions that match what matters most. It can be helpful for anxiety, depression, and coping with life changes.Attachment-Based Therapy looks at how early and current relationships shape expectations and reactions. It helps people understand patterns in close relationships and practice new ways of connecting, which can ease intimacy issues, relationship conflict, and some forms of trauma-related distress.
Finding the right approach is part of the process. The therapist will talk with each person about goals, preferences, and what feels most useful. Together they select techniques and make a plan that fits the person's life and needs.
Online formats include video calls, phone sessions, live chat, and text-based messaging. Video is useful when visual cues matter and for longer sessions. Phone sessions can fit a shorter check-in or when bandwidth is limited. Live chat and text messaging work well for brief check-ins, session notes, or when written reflection helps. These options make scheduling easier and let therapy fit into busy or changing routines.
05Questions people ask
What concerns does she address?
She supports people dealing with stress, anxiety, depression, bipolar concerns, addictions, trauma, grief, and relationship or intimacy issues. There is also attention to parenting, career strain, caregiver stress, and compassion fatigue.
How would you describe her style in sessions?
Her style is compassionate, direct, and collaborative. She listens closely, offers an assessment, and works with clients to create a clear, practical plan.
How much experience does she have?
She brings 35 years of clinical experience to her practice and has worked with a wide range of emotional and relational concerns over that time.
What credentials and location are listed?
She holds the credential LCPC and practices in Illinois.
Which languages are supported for sessions?
Sessions are offered in English.
Can international clients work together with her?
International clients are not currently accepted.
What session formats are available?
She offers video calls, phone sessions, live chat, and text-based messaging to suit different needs and schedules.
How does cost and starting therapy work?
Cost varies with location and therapist availability and uses a subscription model that can be canceled at any time. To begin, select the Start Therapy button, complete the short matching questionnaire, and schedule according to therapist availability.
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