Nathaniel Moore, MD

Dr. Nathan Moore is Board-certified by the American Board of Family Medicine. Dr. Moore attended Stanford University in Palo Alto, CA for his undergraduate work and then attended Duke University School of Medicine and obtained his M.D. in 1995. Dr. Moore then came to Colorado and completed his residency in family medicine at the University of Colorado’s Family Medicine Program at Rose Medical Center.

Dr. Moore practices mostly at the Aurora location. He provides comprehensive family medicine services and has a special interest in addiction medicine, treating patients with opioid use disorder as well as alcohol addiction.

Dr. Moore is married with three children. He enjoys mountain-biking, running and golf.

whitney grant addiction treatment staff

Whitney Grant MSN, FNP-BC, ARNP, RN, CPN

Whitney Grant is an experienced Family Nurse Practitioner, with experience and expertise in Medication Assisted Treatment. Whitney earned her BSN at University of Miami before moving on to achieve her Masters of Science in nursing degree there too, becoming a nurse practitioner immediately thereafter. Whitney has since achieved board certification from the ANCC as a Family Nurse Practitioner. After spending her entire formative and educational years in South Florida, Whitney moved to Denver in 2018 to pursue a career as a provider in family practice, sub-specializing in addictions medicine. Whitney has worked under the guidance of Dr. Nathaniel Moore, CMAR’s Medical Director since moving to Denver.

dwight duncan addiction treatment staff

Dwight Duncan, Psy.D


Dr. Duncan was born and spent most of his early life in California. He received his doctorate in Clinical Psychology from the University of Denver in 1987. He is a Licensed Psychologist as well as a Licensed Addiction Counselor. He has had extensive training and experience throughout his professional career in, medical psychology, mindfulness, integrated behavioral healthcare and substance abuse.

Dr. Duncan is married with one daughter, who is a neurologic physical therapist in Los Angeles.

michael damioli addiction treatment staff

Michael Damioli, LCSW, CSAT

Clinical Director

Michael Damioli has been passionately working in the fields of addiction treatment and mental health since 2012. He has held a variety of different roles within the addiction recovery space, ranging from peer-support to direct clinical practice. Notably, Michael was part of a leadership group that developed a small therapy practice into a nationally branded addiction treatment program, which offers multiple levels of care to recovering professionals. Michael is a strong believer in the family disease model of addiction and has focused much of his clinical work and training on supporting families impacted by addiction. He also specializes in treating individuals suffering from co-occurring chemical and “process addictions”.

Michael is honored to be leading the clinical care team at CMAR and believes that excellent clinical care begins by simply treating a patient with dignity and respect. Michael is a strong advocate for ethical reform within the addiction treatment field and is excited to promote CMAR as an ethical and thought leader throughout the treatment & recovery industry. Michael earned his Masters Degree in Social Work from the University of Denver and is independently licensed as a Clinical Social Worker with the state of Colorado. He holds an advanced post-graduate certificate in Marriage and Family Therapy from the Denver Family Institute as well as an Advanced Certificate in sexual addiction counseling from the International Institute of Trauma and Addiction Professionals.

Anna Smith, LPC, CSAT


Anna Smith believes in reflecting hope in all situations, even the darkest of stories. She is passionate about helping people develop the necessary tools and goals to overcome the troubles and tribulations in their lives. Anna understands that people are more capable and prepared than they believe, and works with patients to embrace that truth. There are times in all our lives that are heartbreaking, damaging, and overwhelming, when the fire burns so hot that we feel like there is no way out. The counseling relationship has the ability to combat the darkness, and it is this hope that she draws on as a counselor.

Anna is a Certified Sex Addiction Therapist. Her experience and specialized training equip her in a unique way to work with addiction. Anna know firsthand the trauma from being in an addictive system, and believes that the therapeutic process can improve the trajectory of recovery.

Anna will work with you to establish a safe relationship, define concrete goals, and work towards the change you want in your life. She utilizes various tools and techniques, including EMDR and Brainspotting, in her practice, but in particular believes in the power of humor and laughter.

Thomas Stuart, MA, LPC, LAC


Thomas Stuart, MA, LPC, LAC is a licensed counselor with 12 years experience in the mental health field. He practices motivational interviewing and cognitive behavioral therapy as primary intervention methods. He earned a master’s degree in Psychology from the State University of New York at Brockport and a bachelor’s degree in Psychology from Wilkes University.

Maggie Coyle, MS, MA, LPP, LPCC


Maggie Coyle, MS, MA, LPP, LPCC has worked in the mental health and addictions counseling field for the past six years. She has extensive experience in working in the varying levels of mental health and addictions treatment as well as with diverse populations. She practices Cognitive Behavioral Therapy and Dialectical Behavior Therapy as primary intervention methods. She has earned a bachelor’s degree in Sociology as well as a master’s degree in Clinical Mental Health Counseling both from Northern State University in Aberdeen, SD. She has also earned a master’s degree in Addictions Counseling from the University of South Dakota in Vermillion, SD. Maggie moved from South Dakota to Colorado in June 2020 and is excited to be apart of the CMAR team.

cortland addiction treatment staff

Cortland Mathers-Suter, MSSA

Managing Partner

Cortland Mathers-Suter entered the treatment space after his own battle with addiction. He first worked as a peer mentor, before starting clinical work while completing his Masters of Science in Social Administration from Case Western Reserve University where he focused on policy and direct practice. Cortland moved to Colorado in 2015 to start his first addiction treatment program, AspenRidge Recovery. Under his tenure, AspenRidge Recovery became a 2 location, nationally accredited organization. He has since spent the last two years researching and developing what is now Colorado Medication Assisted Recovery (CMAR). According to Cortland, “Colorado Medication Assisted Recovery is the most important organization I have had the honor to help build. We’re offering a service that seeks to not only improve the lives of our patients, but also evolve how we look at medication-assisted treatment in Colorado entirely. Most individuals receiving medication-assisted care only receive medication and urinalysis. Sure you can call that “treatment”, but you can’t call that ‘recovery.’ Our model is about adding the missing recovery component, and thus affords an opportunity to achieve lasting change for each patient, and the industry.”

Cortland and his treatment programs have received numerous honors. These include Colorado Business Magazine’s “GenXYZ” award, the 2020 “Titan 100” award, and his program AspenRidge Recovery was both a finalist for “Best Healthcare Company” and named in the “Company’s to Watch” by Colorado Business Magazine as well. He has been interviewed and quoted by numerous publications for his “addiction expertise”, including News Week, 5280 Magazine, the Denver Post, Elephant Journal, Colorado Biz Mag and

emily addiction treatment staff

Emily Malecha

Medical Care Coordinator

Emily Malecha, though originally from the Chicago area, moved out to Colorado for school in 2016 and is a recent graduate from the University of Colorado in Boulder. Her studies focused on the fields of psychology, neuroscience, and public health, and she has plans to eventually continue her education in the field of medicine. During her time in college, she gained her Emergency Medical Technician (EMT) license and has had experience working clinically in urgent care settings ever since. Emily is excited to be a part of the CMAR clinical team and to carry over the skills that she has learned into the field of addiction recovery.

In her free time, she enjoys anything outdoors, trying new foods, and playing with her puppy.

Kirstin O’Carroll

Clinical Outreach Representative

Kirstin O’Carroll started her career in addiction & mental health services 23 years ago after graduating with an MSW from The Oho State University. Hired directly from an internship program, she served as a case manager & vocational specialist on a community treatment team in Columbus, OH, working to help severely mentally ill adults remain at home & in a community setting. Within the same organization, she later transitioned to clinical assessment & crisis intervention services with children, adolescents & adults. Through these experiences, she learned the importance of providing empathetic, high-quality care & the need to “start wherever the patient is” with regard to finding the best treatment & solutions for her patients. After 7 years, Kirstin made a career change to diagnostic sales & worked for several Fortune 500 companies as an Acute Care Sales Specialist. She is delighted to return “home” to her passion for helping others & believes her new role as Community Engagement Coordinator for CMAR is the perfect alignment of bother her clinical & sales skills. When not promoting CMAR, she can be found reading, running, hiking, watching movies & spending time with her husband Dennis & senior canine son Reggie.