I began my working to help people in 2002, doing direct services for people with developmental disabilities. My career has included post-graduate work focusing on autism and resulting in a doctoral degree in Lifespan Developmental Psychology. I earned my Psychologist License in the State of Colorado during my 8 years of working with adults in the community mental health field. These diverse experiences have lead me to be adept at diagnosing mental health problems; as well as developing and delivering interventions throughout the lifespan and for the full spectrum of challenges experienced by those seeking services.
Currently, I focus on delivering Acceptance and Commitment Therapy (ACT), Cognitive Processing Therapy (CPT), and Solutions Focused Brief Therapy (SFBT). ACT is a third-wave behavioral technique that is applicable to a wide range of challenges, as well as ages. It focuses on mindfulness, cognitive flexibility, and taking valued action; that is, reacting to challenges by only, and to the exception of experiential avoidance, taking well-planned steps that get you closer to the core of what is most important in your life. CPT is an evidence based best practice developed by the Veteran’s Administration to treat PTSD and other trauma related disorders. SFBT is a therapeutic technique that is limited in the number of sessions delivered, and focuses exclusively on the strengths of the individual and in amplifying what is working to elucidate the desired outcome of therapy.
My approach to treating an individual is that every person has great and astounding strengths. This fact leads to positive outcomes in treatment and is embraced by my methods. I believe that all people are capable of excellence and that meeting each person where they are, with compassion and unconditional positive regard, is the best approach to helping others actualizing greatness.
Kaiser Approved Therapist
Mark Pennick has been credentialed as an in-network Kaiser Permanente provider. Westside will be able to bill your Colorado Kaiser Permanente plan for the mental health services provided.
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In-Network Insurance Accepted
In-Person Therapy in Colorado: Denver
Online Therapy
Mark Pennick offers HIPAA-compliant, encrypted video therapy sessions through Westside Behavioral Care. In compliance with Colorado state licensing requirements, video sessions are only available to clients physically located in Colorado at the time of their appointment. Prior to your first session, Mark Pennick will send you everything you need to join your secure video call.
In-Person & Video Sessions Service Area
Meet with Mark Pennick in-person or via secure video throughout Colorado. In-person appointments are available to clients in Aurora, Denver, Westminster, and surrounding areas in Greater Denver Metro. Nearby clients find the commute well worth it.
Professional License
Westside Behavioral Care, Inc. uses an automated system to verify each therapist's license with Colorado's Department of Regulatory Agencies (DORA). This ensures all providers listed are actively licensed, giving clients confidence in the professionalism and qualifications of their mental health care provider.
Therapist Name: Mark Pennick
Degree: ~Doctorate of Philosophy
Professional License Type: PSY
Professional License Number: 4627
Professional License Status: Active
Professional License Expiration Date: August 31, 2027
Last Verified: April 10, 2026
DATA INTEGRITY GUARANTEE
The provider and license data displayed in this box for Mark Pennick was retrieved directly from DORA on April 10, 2026, and is displayed without modification. Westside Behavioral Care does not alter provider licensing records. Verify on DORA's website