Welcome to Walker Psychological Services
Mental Health Counseling, Psychological Testing,
and Sport & Performance Psychology
Welcome to Walker Psychological Services
Mental Health Counseling, Psychological Testing,
and Sport & Performance Psychology
Who We Are
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Practice Philosophy
At the core of our practice is the belief that excellence is not just about outcomes—it’s about the process of becoming. Whether working with athletes, performers, students, or professionals, we recognize that optimal performance is deeply connected to overall well-being.
We take a holistic, evidence-based approach—integrating principles from cognitive-behavioral therapy, interpersonal process, mindfulness, and applied sport and performance psychology. We honor the complexity of being human. Performance does not exist in a vacuum—it is influenced by identity, relationships, stress, physical health, and life transitions. We provide space for the full person behind the performance, supporting clients in building self-awareness, self-compassion, and sustainable motivation.
Importantly, we believe that high performance and well-being are not in opposition—they are intertwined. A mentally healthy performer is a more consistent, adaptable, and fulfilled one. Our work emphasizes not only striving, but also rest, balance, and connection to values.
Whether you are pursuing peak performance, navigating challenges, or seeking a stronger foundation of mental wellness, our role is to walk alongside you with curiosity, expertise, and belief in your capacity to grow.
Services
Counseling Services
Sport & Performance Psychology
Psychological Testing
We provide counseling services for individuals, and couples in all developmental phases of life. We also provide EMDR and NuCalm®.
Psychological Testing
Sport & Performance Psychology
Psychological Testing
We offer psychological testing for children and adults who may have ADHD, learning disabilities, Autism Spectrum Disorder, and mood disorders.
Sport & Performance Psychology
Sport & Performance Psychology
Sport & Performance Psychology
We use psychological knowledge and skills to address optimal performance and well-being in business, athletics, and the arts.
Groups And Workshops
Sport & Performance Psychology
Sport & Performance Psychology
We offer a variety of groups Including (but not limited to) DBT Skills, injured athlete support, and mental skills training.
Providers
Ricki Walker, PhD, CMPC
Dr. Walker is a Licensed Psychologist, Certified Mental Performance Consultant (CMPC), and an adjunct professor for the University of Denver Graduate School of Professional Psychology. She is also the Sport Psychologist for the US Men's Alpine Ski Team, the US Men's Alpine Developmental Ski Team, and a contracted assessment provider for the United States Olympic and Paralympic Committee. She previously was the Associate Director and Training Director for the University of Oklahoma Athletics Department Psychological Resources for OU Student-Athletes (PROS), and contracted Sport Psychologist for Vanderbilt University Athletics.
Dr. Walker earned her Counseling Psychology Doctorate from the University of Northern Colorado, her Master’s degree in Sport and Performance Psychology from the University of Denver, and her Bachelor's degree from Colorado State University. Dr. Walker has worked in clinical and athletic settings since 2006. Dr. Walker was a Division I Athlete, played semi-professional softball, and was drafted to play in the professional league following her collegiate career.
Dr. Walker's areas of clinical focus include psychological testing, sport and performance psychology, EMDR, pain management, worker compensation, LGBTQIA concerns, relational distress, anxiety disorders, and grief.
Colorado Psychologist License : PSY. 0004283
Authority to Practice Interjurisdictional Telepsychology (APIT):
APIT Number: 8671
https://www.psychologytoday.com/us/therapists/ricki-walker-denver-co/250685
Allie Don Sing, MA, LPC
Allie is a Licensed Professional Counselor (LPC) in the state of Colorado. In addition, Allie is in the process of acquiring her designation as a Certified Mental Performance Consultant (CMPC). Allie earned her Master’s degree in Sport and Performance Psychology from the University of Denver and her Bachelor’s degree from Auburn University. She has experience working in both clinical and athletic settings.
Allie currently provides services in a clinical setting in the Denver area treating all forms of eating disorders. During her time at DU, Allie worked within the athletics department as a graduate assistant. She also provided sport psychology services to elite athletes in both individual and group settings. Allie completed specialized LGBTQIA+ training from the University of Denver becoming part of the Queer and Ally Network on DU’s campus.
Allie's areas of clinical focus include sport and performance psychology, anxiety disorders, depression, women’s issues, relational distress, identity and self-concept development, and life transitions. No matter the area of focus, Allie takes a client-centered approach and views individuals in relation to their environments in her collaboration with clients.
Colorado License: LPC.0017684
https://www.psychologytoday.com/us/therapists/allie-don-sing-denver-co/700972
Jacob Daheim, PhD
Dr. Daheim is a Colorado Licensed Psychologist and acquiring his designation as a Certified Mental Performance Consultant (CMPC). He earned his PhD in Counseling Psychology from Texas Tech University and his Bachelor's degree from Oklahoma State University.
Throughout his professional journey, he has worked in various clinical and athletic settings, including in a Div. I athletic department, sports medicine clinics, and as a consultant for various teams. He completed his Doctoral Internship with Vail Health Behavioral Health and Howard Head Sports Medicine in their Sport Psychology Track.
Dr. Daheim’s clinical focus is in a wide range of areas, including psychological testing, sport and performance psychology, pain management, injury recovery, return to sport, interpersonal conflict, life transitions, and mood disorders. He is well-versed in tailoring therapeutic approaches to suit the unique needs of his clients, providing compassionate and evidence-based treatment to guide them towards lasting change and growth.
Colorado Psychologist License: PSY.0006481
https://www.psychologytoday.com/us/therapists/jacob-daheim-denver-co/1179283
Kaela Little, MA
Kaela is a Licensed Professional Counselor Candidate (LPCC) in the State of Colorado and a Certified Mental Performance Consultant (CMPC). She earned her Master’s degree in Sport and Performance Psychology from the University of Denver and a dual Bachelor’s degree in Information Technology Management and Psychology from the University of Notre Dame.
She competed as a Division I student-athlete and played professional soccer in France before retiring from the sport. Kaela has experience working in both clinical, athletic, and high-risk occupation settings and currently provides therapeutic services through a non-profit organization in the Denver area.
Kaela's clinical focuses include sport and performance psychology, EMDR, LGBTQIA+ affirming therapy, adolescent and young adult issues, individuals experiencing anxiety, and identity development. She strives to foster a space promoting inclusivity and curiosity, while using evidence-based techniques to help clients feel empowered to live and speak their truth.
Colorado Licensed Professional Counselor Candidate: LPCC.0021339
https://www.psychologytoday.com/us/therapists/kaela-little-denver-co/1114551
Brittany Barnes, MA
Brittany is a Licensed Professional Counselor Candidate (LPCC) in Colorado, currently pursuing certification as a Mental Performance Consultant (CMPC). She holds a Master’s degree in Sport and Performance Psychology from the University of Denver and has a deep passion for helping individuals enhance their performance while maintaining emotional well-being.
As a former Division II student-athlete, Brittany understands firsthand the unique challenges that athletes face both on and off the field. She brings this personal experience, along with professional training, to her work in sport and performance psychology. Brittany has also worked extensively in clinical settings and held a position as a social worker in both Georgia and Colorado, where she was responsible for ensuring the safety and well-being of children.
Brittany’s clinical expertise spans a range of areas, including sport and performance psychology, LGBTQIA+ affirming therapy, adolescent and young adult issues, substance abuse, anxiety, and identity development. Her approach is rooted in inclusivity, empowerment, and advocacy, creating a safe, supportive space for clients to explore their challenges and goals. Brittany uses evidence-based techniques to help individuals navigate life transitions, build resilience, and embrace their authentic selves.
With a commitment to fostering personal growth, Brittany works alongside her clients to help them speak their truth, overcome obstacles, and lead fulfilling lives.
Colorado Licensed Professional Counselor Candidate: LPCC.0022959
https://www.psychologytoday.com/us/therapists/brittany-barnes-arvada-co/1391908
Cohen, BMD
Cohen is a Certified Good Girl. She currently serves as the Lead Wellness Consultant for Walker Psychological Services.
She is also a gold medalist in Receiving Loves—an honor awarded unanimously and with many ear and belly pets.
Her specialized skills include advanced toy-getting, Olympic-level happy hops, and prolific seasonal shedding.
Resources
Colorado Crisis Services
Reach out for free, confidential, professional, 24/7 support
Suicide Prevention LifeLine
The Lifeline provides 24/7, free and confidential support for people in distress, prevention and crisis resources
College Guide for Students with Mental Health Disorders
College Guide for Students with Mental Health Disorders
A comprehensive guide that assists these students in navigating the programs and policies dedicated to supporting mental health
