Dennis Siefker
Calm, experienced help for life’s hard problems
- Credentials
- LPC
- Experience
- 30 years
- Licensed in
- Colorado
- Languages
- English
- Format
- Online sessions
About Dennis
Dennis Siefker is a licensed professional counselor with 30 years of clinical experience in Colorado. He focuses on helping people who are dealing with depression, addiction, relationship strain, trauma, and life transitions. He draws on long practice experience to create steady, practical support for emotional struggles.
Sessions aim to be straightforward and aimed at real-life change. He uses several therapy methods together rather than one fixed model. That means sessions can include talking through feelings, learning specific coping skills, and practicing clearer communication.
Background and approach
Dennis favors plain language and concrete steps that clients can use between meetings. His background includes long-term work with mood disorders, stress responses, grief, and problem areas that overlap such as codependency and substance use. He also works with issues like body image, eating or sleeping problems, ADHD, and intimacy-related concerns.
A wide variety of life challenges informs how he frames treatment. Therapy sessions often focus on understanding what keeps a problem going, then testing small changes to break that pattern. Techniques might include cognitive work to shift unhelpful thoughts, skills for managing intense emotions, and attention to the quality of close relationships.
The emphasis is on practical tools and clearer choices. People who prefer direct, experienced guidance tend to fit well with his style. He aims to be collaborative and respectful, helping clients set goals and check progress.
The approach is adaptable to many kinds of struggles and stages of life.
Therapeutic approaches and how they work online
Client-Centered Therapy focuses on listening without judgment and following the client’s lead. It helps people feel heard and safer to talk about difficult topics, which can support work on depression, grief, or relationship stress.Cognitive Behavioral Therapy, or CBT, helps identify and change unhelpful thoughts and behaviors. It is practical and skill-based, useful for anxiety, mood concerns, and patterns that maintain problems.
Dialectical Behavior Therapy, or DBT, teaches emotion regulation and distress tolerance skills. It is helpful when feelings get overwhelming and for improving day-to-day coping.
Finding the right approach is part of the work. Dennis treats therapy as a collaboration and will help decide which methods fit a person’s goals and preferences. He adapts techniques to what helps most in real life and checks in regularly about progress.
Online sessions offer flexibility for busy schedules and different needs. Video calls allow face-to-face conversation, phone sessions give a simpler option, and live chat or text messaging can be useful for brief check-ins or when typing feels easier. These options make it possible to keep momentum between meetings and access support from wherever the client is located in Colorado.
Client-Centered Therapy
The direction comes from you rather than from a set programme. The therapist offers a warm, non-judgemental space to think out loud and work at your own pace. Online, this rests on the relationship rather than on being in the same room.
Cognitive Behavioral Therapy (CBT)
CBT looks at the link between what you think, how you feel, and what you do. You work on noticing unhelpful patterns and practising steadier responses. It suits online sessions well, because much of the work happens between appointments and can be talked through from anywhere.
Dialectical Behavior Therapy (DBT)
Concrete skills for riding out strong emotion, tolerating distress, and handling relationships without things escalating. The skills are practised in daily life, so between-session support by message or phone fits naturally.
Frequently asked questions
What concerns does he address?
What is his therapeutic style?
How much experience does he bring?
What are his credentials and where is he based?
Which languages are used in sessions?
Are international clients supported?
What session formats are available?
How do fees and scheduling work?
Specialties and expertise
Top specialties
- Addictions
- Relationship issues
- Family conflicts
Also works with
- Abandonment
- ADHD
- Anger management
- Antisocial personality
- Attachment issues
- Autism and Asperger Syndrome
- Avoidant personality
- Bipolar disorder
- Blended family issues
- Body image
- Cancer
- Career difficulties
- Co-morbidity
- Codependency
- Commitment issues
- Communication problems
- Compassion fatigue
- Control issues
- Coping with life changes
- Coping with natural or human-caused disaster
- Dependent personality
- Depression
- Disruptive Mood Dysregulation Disorder (DMDD)
- Dissociation
- Divorce and separation
- Domestic violence
- Drug and alcohol addiction
- Eating disorders
- Emptiness
- Family of origin issues
- Family problems
- Fatherhood issues
- First responder issues
- Forgiveness
- Grief
- Guilt and shame
- Impulsivity
- Infidelity
- Intellectual disability
- Intimacy-related issues
- Isolation / loneliness
- Jealousy
- Life purpose
- Men's issues
- Midlife crisis
- Mood disorders
- Narcissism
- Obsessions, compulsions, and OCD
- Panic disorder and panic attacks
- Paranoia
- Parenting issues
- Personality disorders
- Phobias
- Post-traumatic stress
- Postpartum depression
- Process addiction (porn, exercise, gambling)
- Seasonal Affective Disorder (SAD)
- Self esteem
- Self-harm
- Self-love
- Sex addiction
- Sexual assault and abuse
- Sleeping disorders
- Social anxiety and phobia
- Stress, Anxiety
- Trauma and abuse
- Traumatic brain injury
- Workplace issues
- Young adult issues
Therapeutic approaches
- Experience
- 30 years
- Licensed
- Colorado
- Languages
- English
Next step
Talk to Dennis
- Takes a few minutes
- Nothing to set up just to look
- Stop at any point