Marilyn Duman, PsyD
Psychologist
5595 E Custer Pl
Denver, CO 80246
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46 providers
Availability last updated 07/04/2025
Marilyn Duman, PsyD
Psychologist
5595 E Custer Pl
Denver, CO 80246
Carol McLennan, LPC
Psychologist
300 South Jackson Street
Suite 250
Denver, CO 80209
Shea McTaggart
Psychologist
900 Potomac Street
Aurora, CO 80011
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
James Nguyen
Psychologist
190 E 9th Ave Ste 350
Denver, CO 80203
Shea McTaggart
Psychologist
1719 E. 19th Ave
Denver, CO 80218
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
Sunda Tebockhorst, PhD
Psychologist
588 N Hwy 287
Suite 200
Lafayette, CO 80026
David R Zimmermann, is Colorado Recovery Solutions Chief Operating Officer (COO). He leads the Operations Team at Colorado Recovery Solutions in Colorado Springs, Colorado, to assist patients improve their mental health, provide alternatives to treatment resistant conditions, and give patients a different and more holistic pathway to life-changing treatments.
David graduated from the University of Colorado - Colorado Springs with a Bachelor of Science in Biology. He also has two Associates Degrees in General Studies from Pikes Peak State College and in Applied Science for Allied Health / Practical Nursing from the Community College of the Air Force. He is also a Veteran that served as an active-duty Air Force Medic in several different assignments. His specialties were Family Health as an Aerospace Medical Technician and Flight Medicine as a Flight and Operational Medical Technician. He worked closely in face-to-face patient care, clinical operations, headquarters medical management working groups and as a proficient first-responder out-in-the-field. He has also worked as an Emergency Medical Technician, Fire Fighter, Security and Parking Operations for different companies. His next goal is to get his Masters in Nursing with a specialty focus in Psychiatry.
His love for family, friends, nature, faith, science and his subjective life experiences have also inspired him to pursue a career in Advanced Clinical Psychiatry. He deeply relates to those suffering from all forms of mental health conditions and portrays a compassionate and empathetic care to finding a long-lasting or permanent healing.
He is a fluent Bilingual Spanish speaker, who is very proud to come from Central America. His other passion in the medical realm is to assist those that only speak Spanish or that speak very little English, to understand the full scope of their conditions and plan of care. As an immigrant himself, he personally witnessed the lack of resources and dire need in our immigrant communities, and wants to make an impact in where those services and resources are needed the most.
He loves caring for others and treating everyone with respect, dignity, humility and confidence. He is very happy to be leading the Operations Team at CRS and to harvest a community of empathetic professionals that are spearheading the way in our modern Mental Health Crisis with edge-cutting treatments and techniques.
Dr. David Zimmermann, PhD
Psychologist
1840 Woodmoor Drive
Suite 102
Monument, CO 80132
