Works with
- Anger
- Addictions
- Relationship issues
- Family conflicts
- Trauma and abuse
- Depression
How Dennis works
Practical facts
- Credentials
- LPC
- Licensed in
- Colorado
- Years in practice
- 30
- Languages
- English
- Session format
- Online, through our partner platform
About Dennis
Dennis Siefker is a Licensed Professional Counselor with 30 years of clinical experience in Colorado. He works with people facing everyday struggles and more complex challenges. Dennis focuses on practical steps you can take now to feel steadier and more in control.
He helps with a wide range of concerns including depression, anxiety, addictions, grief, trauma, and anger. He also supports work on intimacy, self-esteem, sleeping and eating issues, and major life changes.
Background and approach
Sessions often look at how habits, thoughts, and relationships contribute to current problems. Dennis blends counseling styles to match each person. He uses client-centered ways to keep sessions focused on what matters to the individual.
He brings cognitive behavioral tools when people need help changing thinking patterns and behaviors. People who choose him often want straightforward guidance and clear skills they can use between sessions. He aims to make conversations direct but respectful, with a focus on real-world coping and improved communication.
He pays attention to how past experiences shape present reactions. Over his career Dennis has worked with concerns tied to attachment, codependency, ADHD, and complicated grief among others. He draws on several therapy methods to tailor practical plans.
If someone wants to build better coping skills, manage anger, or repair relationship patterns, he offers a steady, experienced presence to work with them.
What Dennis works with
Everything Dennis lists, in the therapist's own terms. Anger is the reason this directory exists; the rest tells you what usually sits alongside it in Dennis's practice.
- Addictions
- Relationship issues
- Family conflicts
- Trauma and abuse
- Depression
- Stress, Anxiety
- Grief
- Intimacy-related issues
- Eating disorders
- Sleeping disorders
- Parenting issues
- Anger management
- Self esteem
- Career difficulties
- Bipolar disorder
- Coping with life changes
- Compassion fatigue
- ADHD
- Abandonment
- Antisocial personality
- Attachment issues
- Autism and Asperger Syndrome
- Avoidant personality
- Blended family issues
- Body image
- Cancer
- Co-morbidity
- Codependency
- Commitment issues
- Communication problems
- Control issues
- Coping with natural or human-caused disaster
- Dependent personality
- Disruptive Mood Dysregulation Disorder (DMDD)
- Dissociation
- Divorce and separation
- Domestic violence
- Drug and alcohol addiction
- Emptiness
- Family of origin issues
- Family problems
- Fatherhood issues
- First responder issues
- Forgiveness
- Guilt and shame
- Impulsivity
- Infidelity
- Intellectual disability
- Isolation / loneliness
- Jealousy
- Life purpose
- Men's issues
- Midlife crisis
- Mood disorders
- Narcissism
- Obsessions, compulsions, and OCD
- Panic disorder and panic attacks
- Paranoia
- Personality disorders
- Phobias
- Postpartum depression
- Post-traumatic stress
- Process addiction (porn, exercise, gambling)
- Seasonal Affective Disorder (SAD)
- Self-harm
- Self-love
- Sex addiction
- Sexual assault and abuse
- Social anxiety and phobia
- Traumatic brain injury
- Workplace issues
- Young adult issues
Approaches Dennis lists
- Client-Centered Therapy
- Cognitive Behavioral Therapy (CBT)
- Dialectical Behavior Therapy (DBT)
- Emotionally-Focused Therapy (EFT)
- Existential Therapy
- Mindfulness Therapy
- Motivational Interviewing
- Solution-Focused Therapy
- Trauma-Focused Therapy
Listing an approach is not evidence of training in it. This directory copies what each therapist names and does not check training records.
Therapeutic approaches for online work
Client-centered therapy focuses on the person first. It emphasizes listening, empathy, and helping the client set the pace and goals for sessions. This approach helps when someone needs an accepting space to sort out feelings and priorities.Cognitive Behavioral Therapy, or CBT, looks at how thoughts, feelings, and behaviors interact. It teaches concrete skills to change unhelpful thinking and build new habits, which can help with anxiety, depression, anger, and sleep or eating issues.
Dennis will work with each person to find the best approach. He combines methods based on an individual’s goals, preferences, and the problems they bring. That collaborative process can include trying different tools and adjusting the plan as needed.
Online sessions are offered as video calls, phone sessions, live chat, or text-based messaging. Video lets people use face-to-face conversation when that helps progress. Phone can be a good fit when bandwidth or screen time is an issue. Chat and text are useful for shorter check-ins, brief coaching, or catching up between longer sessions. These options make it easier to fit therapy into work, family, or travel schedules while keeping continuity of care.
Questions people ask about Dennis
What kinds of problems does Dennis address?
Dennis works with many concerns such as depression, anxiety, addictions, trauma, anger, grief, and relationship or intimacy-related issues. He also supports people dealing with stress, sleep or eating problems, ADHD, and career or life changes.
What is his therapeutic style like?
He takes a client-centered, practical approach that focuses on the person’s needs. Sessions are collaborative and often include skills practice and straightforward discussion about patterns and choices.
How much experience does he have?
He has 30 years of experience working as a clinician in Colorado. That background includes work with a broad range of emotional and behavioral concerns.
What are his credentials and location?
He is a Licensed Professional Counselor - LPC - practicing in Colorado. His work and professional credential are based in that state.
Which languages are supported for sessions?
Sessions are offered in English only. International clients are not currently accepted.
What session formats are available?
Sessions can be scheduled as video calls, phone sessions, live chat, or text-based messaging to fit different needs and schedules.
How does payment and cost work?
Cost varies with location and therapist availability and is handled through a subscription model. The subscription can be canceled at any time.
How do I begin working with him?
Start by selecting the Start Therapy button, complete a short matching questionnaire, and then schedule sessions according to therapist availability.