Steven Lee, PhD
Psychologist
1777 S Bellaire St Ste 390
Denver, CO 80222
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Availability last updated 06/25/2025
Steven Lee, PhD
Psychologist
1777 S Bellaire St Ste 390
Denver, CO 80222
Dr. Trey Cole is a top psychologist with over 16 years of experience in providing mental health services in a variety of settings, from the military to inpatient hospitals, hospice care, correctional facilities and beyond. He is skilled in helping clients cope with problems ranging from anxiety and depression, bipolar disorder, psychosis, and trauma. At Quandary Peak Counseling, Dr. Cole provides quality services to the community of Denver, Colorado, and its surrounding areas.
After spending approximately six years as a mental health provider in the U.S. Army, Dr. Cole earned his master’s and doctoral degree in Clinical Psychology from the University of Denver. Following licensure, he completed several post-doctoral training programs, accumulating the hours to receive board certification in Clinical Psychology, which is an achievement only approximately 1% of psychologists attain. He also has Diplomate status within the American Academy for Experts in Traumatic Stress.
In addition to delivering expert psychotherapy services at Quandary Peak Counseling, Dr. Cole has also been a consultant, supervisor, and professor at several universities.
Dr. Garry Cole, PsyD, ABPP
Psychologist
1777 S Bellaire Street
Suite 339
Denver, CO 80222
Julia Wilson, LPC, is a dedicated clinical mental health counselor at Himalaya Family Medicine Clinic in Aurora, Colorado, specializing in transformative therapeutic practices. With extensive experience and a strong educational background, Julia is committed to helping individuals navigate their mental health challenges and achieve personal growth.
Julia holds a master's degree in clinical mental health counseling from Naropa University in Boulder, Colorado. She is a licensed professional counselor (LPC) with a focus on contemplative psychotherapy informed by Buddhist psychology. Her therapeutic approach emphasizes mindfulness, self-awareness, and the resolution of unconscious conflicts to foster healing and personal development.
With a robust background in both group and individual therapy, Julia has served as a program therapist in Denver, Colorado, where she led skills groups and taught mindfulness, DBT, ACT, and meditation techniques. Previously, as a registered psychotherapist at Lakewood, Colorado, she provided recovery-focused therapy and maintained detailed patient records.
Julia has experience in cognitive behavioral therapy, crisis intervention, and addiction counseling. Her therapeutic orientation focuses on helping clients understand their behavior patterns, build resilience, and develop healthier coping mechanisms. Julia integrates mindfulness practices into her sessions, enhancing clients' ability to manage anxiety and emotional challenges.
Julia Wilson
Social Worker
1550 South Potomac Street
Suite 200
Aurora, CO 80012
Sunda Tebockhorst, PhD
Psychologist
588 N Hwy 287
Suite 200
Lafayette, CO 80026
Zachary Sussman, PhD
Psychologist
777 29th Street, Suite 200
Boulder, CO 80303
Julie Mack, PhD
Psychologist
58 Ash Court
Longmont, CO 80503
Marilyn Maher, PhD
Psychologist
2040 Terry St.
Longmont, CO 80501
Hillary is a licensed clinical social worker who is deeply committed to supporting individuals in recognizing their resilience, strength, and inherent worth as they work toward meaningful change. She brings a compassionate, client-centered approach to her work, grounded in the belief that everyone has the capacity to heal and grow.
She earned her undergraduate degree in Human Services with a minor in Criminal Justice from Elon University in 2003. Her career in mental health began in 2006, working with adults living with chronic mental illness in a day program setting. She went on to manage residential services before pursuing her Master of Social Work degree from the University of Maryland, Baltimore, where she graduated in 2013 with a clinical specialization and sub-specialization in mental health.
Since then, Hillary has gained extensive experience in a variety of settings, including assertive community treatment, child welfare, and addiction treatment. Since 2018, she has focused primarily on substance use treatment, providing individual and group therapy, as well as leading intensive outpatient programs.
Her therapeutic approach is strengths-based and rooted in evidence-based practices, including motivational interviewing, cognitive behavioral therapy (CBT), dialectical behavior therapy (DBT), solution-focused therapy, and trauma-focused CBT (TF-CBT). She is dedicated to helping clients build skills, process their experiences, and thrive.
Originally from the East Coast, Hillary relocated to Colorado in 2018. Outside of work, she enjoys live music, road trips, camping, and photography.
Hillary Tsucalas
Social Worker
10160 W 50th Ave
Suite 4
Wheat Ridge, CO 80033
Kalli is a master's prepared certified Licensed Professional Counselor (LPC) and Licensed Addiction Counselor (LAC), with certifications in Eye Movement Desensitization and Reprocessing (EMDR) and Dialectical Behavior Therapy (DBT). Kalli provides treatment to individuals who are and have experienced anxiety, depression, attention/concentration disturbances, emotional/behavioral disturbances, addiction, grief and loss, and trauma. She has a particular interest in working with young adults and adults.
Kalli believes in the whole body and mind approach when providing treatment. She offers approaches that work with and for the individual. Kalli has work experience in inpatient child/adult behavioral health and in the outpatient setting. Most recently, Kalli has worked within the criminal justice system providing substance abuse, trauma, and mental health care treatment for individuals currently in custody.
Kalli is a graduate of the University of Colorado-Denver with a Master's in Clinical Mental Health Counseling.
Kalli enjoys rock climbing, being outdoors, concerts, and reading a good book.
Check out her profile on Psychology Today
Email: [email protected]
Phone: 720-460-9082
Fax: 720-707-1640
Doxy.Me Link: https://doxy.me/kallilikness
Kalli Likness, LPC
Social Worker
3455 Ringsby Court
Suite 140
Denver, CO 80216
Hillary is a licensed clinical social worker who is deeply committed to supporting individuals in recognizing their resilience, strength, and inherent worth as they work toward meaningful change. She brings a compassionate, client-centered approach to her work, grounded in the belief that everyone has the capacity to heal and grow.
She earned her undergraduate degree in Human Services with a minor in Criminal Justice from Elon University in 2003. Her career in mental health began in 2006, working with adults living with chronic mental illness in a day program setting. She went on to manage residential services before pursuing her Master of Social Work degree from the University of Maryland, Baltimore, where she graduated in 2013 with a clinical specialization and sub-specialization in mental health.
Since then, Hillary has gained extensive experience in a variety of settings, including assertive community treatment, child welfare, and addiction treatment. Since 2018, she has focused primarily on substance use treatment, providing individual and group therapy, as well as leading intensive outpatient programs.
Her therapeutic approach is strengths-based and rooted in evidence-based practices, including motivational interviewing, cognitive behavioral therapy (CBT), dialectical behavior therapy (DBT), solution-focused therapy, and trauma-focused CBT (TF-CBT). She is dedicated to helping clients build skills, process their experiences, and thrive.
Originally from the East Coast, Hillary relocated to Colorado in 2018. Outside of work, she enjoys live music, road trips, camping, and photography.
Hillary Tsucalas
Social Worker
2925 E. Colfax Ave.
Denver, CO 80206