As a licensed therapist in Colorado with three decades of experience, I specialize in supporting individuals through complex emotional landscapes. My practice focuses on addressing a wide range of challenges, including depression, addiction, relationship dynamics, trauma recovery, and personal growth.
I bring a compassionate and holistic approach to therapy, drawing from extensive clinical expertise to help clients navigate life's most challenging transitions. Whether you're struggling with anxiety, relationship conflicts, or seeking deeper self-understanding, I offer a supportive environment where healing and personal transformation can occur.
My therapeutic approach is grounded in understanding individual experiences, with a particular sensitivity to men's issues, young adult challenges, and complex emotional dynamics. I am committed to helping clients develop stronger communication skills, build self-love, and overcome barriers that prevent personal growth and emotional well-being.
Through collaborative and personalized counseling, I aim to empower individuals to discover their inner strengths, heal from past wounds, and create meaningful pathways toward a more fulfilling life.
These quotes represent just a few of the many positive reviews that we have received for Dennis Siefker. We don't pay anyone to provide their review and they are all made voluntarily. Some people's experience receiving therapy with BetterHelp might be different.
Dennis truly listens and offers a route for my own self to understand the problem and help get to the solution rather than just telling me the “answer”. I highly recommend Dennis.
Written on Jan 03, 2026 after therapy with Dennis for 2 years and 5 months on issues concerning depression, stress, anxiety, family conflicts, and eating disorders
He is very understanding for making schedules and not just that he is a great therapist. He questions your way of thinking and opens new perspectives without hurting confidence or making you over question yourself. He is very personable and kind. I haven’t had a therapist who is as good with people as Dennis is.
Written on Dec 12, 2025 after therapy with Dennis for 10 months on issues concerning relationship issues, self esteem, anger management, career difficulties, coping with life changes, and adhd
Dennis has been instrumental in helping me navigate traumatic events in my life. He's provides me the tools to manage my emotions through difficult times.
Written on Dec 08, 2025 after therapy with Dennis for 3 years and 9 months on issues concerning depression, trauma and abuse, grief, eating disorders, self esteem, career difficulties, and coping with life changes
Dennis is a great and helpful listener. He doesn’t push in any one way but helps to lead you to your own goals and better patterns of thinking. Really appreciate him
Written on May 09, 2025 after therapy with Dennis for 5 months on issues concerning depression, stress, anxiety, family conflicts, intimacy-related issues, and coping with life changes
Dennis is very professional and kind. He is attentive and seems to be thinking of ways to help me, even on days when we aren’t meeting. This enables me to be reminded of what we are working on, which helps me be ready for our session.
Written on Nov 19, 2024 after therapy with Dennis for 4 months on issues concerning stress, anxiety, addictions, family conflicts, self esteem, anger management, career difficulties, and coping with life changes
Good man, moving mountains
Written on Jun 19, 2024 after therapy with Dennis for 2 months on issues concerning depression
Dennis is amazing and understands how to direct the conversation when I have issues expressing myself
Written on Mar 20, 2024 after therapy with Dennis for 1 year and 3 months on issues concerning depression, addictions, intimacy-related issues, self esteem, and anger management
Dennis is a thoughtful therapist with insightful guidance.
Written on Jan 20, 2024 after therapy with Dennis for 3 weeks on issues concerning stress, anxiety, trauma and abuse, grief, and coping with life changes
He is extremely knowledgeable and helpful provides only talk therapy, but examples of what we’re discussing work sheets everything he would need to get better.
Written on Aug 24, 2023 after therapy with Dennis for 1 year and 11 months on issues concerning stress, anxiety, addictions, relationship issues, family conflicts, intimacy-related issues, sleeping disorders, anger management, and coping with life changes
He is fantastic so far. He’s the best therapist I’ve ever had because he brings actual frameworks into our conversations in an Illuminating way and finds tactical methods for me (vs only trying to find the source but not having solutions)
Written on May 03, 2023 after therapy with Dennis for 2 weeks on issues concerning depression, stress, anxiety, relationship issues, grief, and coping with life changes
Dennis and my sessions with him have played such an important role in where I am now and where I want to be headed. He’s funny, sincere, professional, committed, and encouraging. He consistently provides new views and concepts that, though foreign to me, have been genuine “ahhaaaa” moments that have helped me facilitate a better understanding about myself and my family.
Without hesitation, I would (and do) recommend Dennis and BetterHelp often.
Written on Jan 25, 2023 after therapy with Dennis for 2 months on issues concerning stress, anxiety, relationship issues, family conflicts, intimacy-related issues, parenting issues, self esteem, and compassion fatigue
I feel respected, secure, and understood,
Written on Jan 08, 2023 after therapy with Dennis for 1 year and 2 months on issues concerning depression, stress, anxiety, relationship issues, trauma and abuse, grief, sleeping disorders, career difficulties, coping with life changes, and adhd
Such a good help. If you are Christian he is a believer that knows the word.
Written on Jan 02, 2023 after therapy with Dennis for 1 year and 2 months on issues concerning stress, anxiety, depression, trauma and abuse, and anger management
Dennis is professional, graceful, experienced and practical. I am so grateful for his support and guidance.
Written on Dec 01, 2022 after therapy with Dennis for 8 months
Dennis is great. Very helpful and knows how to get to the true root of an issue.
Written on Nov 27, 2022 after therapy with Dennis for 4 months on issues concerning stress, anxiety, intimacy-related issues, and anger management
Dennis is so dedicated to my needs. He always makes time for me when I need it. He listens to me and always offers unbiased opinion. Dennis gives me several options on approaching solutions to my problems. He never sees a situation “black and white”. Dennis offers support through encouragement and reminding me to believe in myself. He says “no one is unfixable, you are not broken” and gives me the tools to do better and be better. Dennis has been able to help me so much, and I can’t thank him enough!
Written on Nov 14, 2022 after therapy with Dennis for 2 weeks on issues concerning depression, stress, anxiety, addictions, family conflicts, trauma and abuse, eating disorders, sleeping disorders, anger management, bipolar disorder, and adhd
Dennis is one of a kind he is actually the most talented Therapist I have ever worked with And I highly recommend him
Written on Nov 08, 2022 after therapy with Dennis for 1 year and 1 month on issues concerning stress, anxiety, and trauma and abuse
Dennis is amazing!! Id consider him my best friend he helps me with so much is very good keeps very constant contact he is seriously the best I wish I could recommend him to everyone he is absolutely amazing goes above and beyond for his patients!!!
Written on Sep 26, 2022 after therapy with Dennis for 4 months on issues concerning depression, stress, anxiety, trauma and abuse, grief, intimacy-related issues, self esteem, anger management, bipolar disorder, and coping with life changes
Knowledgeable and compassionate therapist who offers great, individualized help
Written on Sep 21, 2022 after therapy with Dennis for 4 weeks on issues concerning stress, anxiety, relationship issues, and intimacy-related issues
For being a first time therapy user, I am very happy with how the sessions have been going with Dennis. He is patient, caring, and a great listener.
Written on May 02, 2022 after therapy with Dennis for 3 months on issues concerning depression, stress, anxiety, relationship issues, family conflicts, intimacy-related issues, anger management, career difficulties, coaching, and adhd
Dennis is awesome. He’s challenged me to reshape my thinking patterns about life and situations. I’m grateful to call him an influence in my life. Thank you Dennis.
Written on Apr 18, 2022 after therapy with Dennis for 3 months on issues concerning depression, stress, anxiety, relationship issues, intimacy-related issues, eating disorders, and self esteem
Dennis has changed my life. His level-headed, unbiased, empathetic, kind and loving approach has saved me.
Written on Dec 14, 2021 after therapy with Dennis for 5 months on issues concerning depression, stress, anxiety, addictions, relationship issues, eating disorders, self esteem, bipolar disorder, coping with life changes, and adhd
Dennis Siefker is a great therapist & counselor.
He’s easy to talk to, makes necessary points that make sense in understanding . He makes it easy for me to get clarity & realize my feelings. This helps me to recognize a strategy for healing.
Written on Nov 16, 2021 after therapy with Dennis for 2 weeks on issues concerning relationship issues, and family conflicts
Dr. Siefker has been very helpful and I’ve only had a couple sessions so far. He is kind, listens well, and helps me to see where I need to improve. My husband and I both work with him and have come far already.
Written on Nov 15, 2021 after therapy with Dennis for 2 weeks on issues concerning depression, relationship issues, family conflicts, grief, intimacy-related issues, anger management, career difficulties, and compassion fatigue
Dennis has been an amazing therapist to me! He’s a great listener, very professional, compassionate and has helped tremendously with many of my issues. He has offered me numerous new ways of approaching everyday problems with healthier solutions!
Written on Oct 26, 2021 after therapy with Dennis for 2 months on issues concerning depression, stress, anxiety, trauma and abuse, intimacy-related issues, eating disorders, self esteem, anger management, and coping with life changes
Dennis is a careful listener, and a thought provoking therapist.
My experience with him has been profoundly helpful, and I greatly appreciated his skill in being able to guide me towards truths and angles of perspective I had trouble approaching on my own.
I would say, in my experience, his style of communication is something like an ever deepening spiral of conversation, where if you are open to it, you can be led straight to the heart of the issue at hand.
I would recommend him highly as a therapist.
Written on Oct 10, 2021 after therapy with Dennis for 3 months on issues concerning addictions, relationship issues, trauma and abuse, and compassion fatigue
Sincerely appreciate Dennis's ability to discuss and dig to the root cause or issue. He listens well, asks for clarification when needed, and helps keep talks on track and focused toward goals/outcomes. He challenges me toward improvement each time, even if improvement hurts, stings, or takes some time, he does not shy away from tackling hard things, in a caring manner. Thanks Dennis.
Written on Sep 13, 2021 after therapy with Dennis for 1 month
Dennis takes his time to understand his patients and their needs and will even add time to make sure you are taken care of.
Written on Jul 24, 2021 after therapy with Dennis for 2 weeks on issues concerning stress, anxiety, and self esteem
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