Dennis Siefker, LPC
Colorado · 30 years in practice
Dennis Siefker is a licensed professional counselor in Colorado with 30 years of experience.
License and registration
- LPC, Colorado
- 12839 · expires August 2027
- NPI
- 1831240506 · national provider identifier
- Years in practice
- 30
- Languages
- English
Details are as listed on the therapist's public professional profile. You can check the license with the issuing state board, and the NPI with the national registry.
About Dennis
Dennis Siefker is a licensed professional counselor in Colorado with 30 years of experience. He helps people facing depression, addiction, anxiety, trauma, and major life changes. He aims to create a calm, straightforward space for honest talk and practical next steps.
Dennis focuses on daily struggles as well as deeper emotional patterns. He works with issues like grief, intimacy concerns, parenting stress, and career uncertainty. He also supports people coping with ADHD, bipolar symptoms, and compassion fatigue.
Background and approach
His approach combines Emotionally-Focused Therapy with client-centered listening and cognitive-behavioral tools. That means he pays attention to feelings, hears each person’s story, and teaches skills to change unhelpful thoughts and habits. Sessions are aimed at making real, manageable changes rather than only talking about problems.
Dennis keeps things collaborative. He helps clients set goals, try new ways of communicating, and practice strategies between sessions. He pays particular attention to attachment and relationship patterns that show up in day-to-day life.
People meet him for short-term problem solving or longer work on deeper issues. He uses plain language, practical exercises, and steady support to help clients move forward. Sessions are available by video, phone, live chat, or text messaging to fit different schedules and needs.
Focus areas and approaches
Everything Dennis lists on their public professional profile, in their own terms.
- 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 names
- Emotionally-Focused Therapy (EFT)
- Client-Centered Therapy
- Cognitive Behavioral Therapy (CBT)
- Dialectical Behavior Therapy (DBT)
- Existential Therapy
- Mindfulness Therapy
- Motivational Interviewing
- Solution-Focused Therapy
- Trauma-Focused Therapy
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 emotional and practical therapies work online
Emotionally-Focused Therapy focuses on understanding and changing patterns in emotional responses and close relationships. It helps people notice feelings, name them, and respond in ways that reduce conflict and increase connection. Client-Centered Therapy emphasizes being heard and respected; the therapist follows the client's lead and provides a supportive space to work through whatever matters most. Cognitive Behavioral Therapy looks at the links between thoughts, feelings, and actions and teaches concrete skills to shift unhelpful thinking and behavior.Finding the right approach is a joint process. Dennis will talk with each person about goals and preferences, then suggest strategies to try together. The plan can change as needs evolve and new priorities emerge, so therapy is shaped around the person's life rather than a fixed method.
Online sessions are offered by video calls, phone sessions, live chat, or text-based messaging. Video is useful for richer conversation and visual cues, while phone sessions can be easier when bandwidth is limited or a shorter check-in fits a busy day. Live chat and text work well for quick questions, written reflections, or people who prefer typing to speaking. These options make it easier to fit therapy into work, family, and travel schedules while keeping the focus on making steady progress.
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Questions people ask
What kinds of concerns does Dennis address?
Dennis works with a wide range of issues including addiction, depression, anxiety, trauma and abuse, relationship and intimacy concerns, grief, parenting stress, sleep and eating problems, and career challenges.
How would you describe his therapeutic style?
He blends Emotionally-Focused Therapy with client-centered listening and cognitive-behavioral tools for practical skill-building and emotional understanding.
What is his professional background?
He is a licensed professional counselor with 30 years of clinical experience working with complex emotional and life issues.
Where does Dennis practice and what is his credential?
He holds an LPC credential and practices in Colorado.
Can sessions be conducted in other languages or internationally?
Sessions are offered in English and he is not accepting international clients.
What formats are available for sessions?
Sessions can be done by video calls, phone sessions, live chat, or text-based messaging to fit different needs and schedules.
How are sessions paid for and what does it cost?
Cost varies with location and scheduling; sessions use a subscription model that 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 schedule according to therapist availability.
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