Jenna McDonald, LMHC

Lauren Mingle is an outpatient therapist at Talkiatry. She is dually licensed in Colorado as a LPC (Licensed Professional Counselor) and LMFT (Licensed Marriage and Family Therapist). Lauren earned her master's degree in Marriage, Couples, and Family Counseling/Therapy from the University of Northern Colorado. Before joining Talkiatry, Lauren held roles in a diverse array of settings including community mental health, crisis services, and outpatient therapy. Her previous specialty focuses included youth, adolescents, adults, and couples. Lauren uses a variety of evidence-based approaches including, but not limited to, Cognitive Behavioral Therapy, Person-Centered Therapy, Dialectal Behavioral Therapy, and Motivational Interviewing to meet people where they are at and work with them to best reach their personalized therapy goals.

Michelle E. Vásquez has been a Licensed Professional Counselor for over 27 years. She has been specializing in grief work since 2012. Many of her clients are living with the loss of loved ones or experiencing other types of non-death loss, such as divorce, job loss, and other significant life changes. Her primary goal is to truly listen to your experience and help you work through it, creating a plan of action together. It is your therapy, and your active involvement is crucial. When dealing with grief, you may still be in pain and need to talk about it long after others want you to stop talking. This is when therapy can be helpful. Your grief journey is at your pace. Michelle uses Cognitive Behavioral Therapy and Solution-Focused Therapy, along with other approaches that help you address loss and trauma in unique ways to begin to write your healing story. She has also worked with domestic violence survivors and child abuse survivors. Michelle works with clients both in English and Spanish and has experience with immigrant populations from many countries. Michelle graduated from Our Lady of the Lake University in 1993. She is currently studying Internal Family Systems Therapy to help her provide you with new ways to address the challenges that bring you to therapy.

Aramis Sinclair, LCSW, has a background in crisis management, anxiety, depression, life stressors, trauma-informed care, outpatient care, and both short- and long-term treatment. They earned a BSW from Brandman University (now UMass Global) and an MSW from the University of Kentucky. Their experience across settings allows them to offer compassionate, informed, and adaptable care.

Clients can expect a warm and inviting environment. Aramis provides structured yet flexible treatment, supporting clients in achieving their goals while addressing additional concerns as they arise. They value honesty, openness, and willingness, fostering a space where clients feel comfortable exploring sensitive topics.

Aramis begins by building rapport and understanding each client’s reasons for seeking treatment and their goals. They create individualized treatment plans tailored to each client’s needs, which can be adjusted over time to best support progress and well-being.

Gabrielle Kull is a Licensed Professional Counselor with a strong foundation in mental health care. She earned her undergraduate degree from Indiana University of Pennsylvania in 2017 and went on to complete her Master's degree at West Virginia University in 2019. Since then, Gabrielle has gained experience working with diverse populations and age groups while working for a non-profit organization that served victims of sexual assault, domestic violence, and other violent crimes. She has a genuine interest in treating a vast array of psychiatric disorders including Post-Traumatic Stress Disorders, Depression, Anxiety, and Obsessive-Compulsive related disorders. Gabrielle became licensed in 2022. She has been trained extensively in Eye Movement Desensitization and Reprocessing (EMDR) therapy since 2019 and achieved her EMDR certification in 2025. She takes a trauma-informed, client-centered approach, meeting individuals where they are in their healing journey. Her practice incorporates evidence-based modalities, including Cognitive Behavioral Therapy (CBT), Internal Family Systems (IFS), and mindfulness techniques, to support her clients in achieving their goals. Gabrielle is committed to ongoing education and continuous learning to ensure she provides the most effective and up-to-date care for her clients. She is currently expanding her specialties to include mental performance counseling with athletes.

Dawn Schulze, LPC, has extensive experience practicing in both outpatient and residential treatment settings. She completed her Doctorate in Psychology at the University of St. Thomas in St. Paul, Minnesota, and has specialized training in grief and trauma counseling. Her clinical background allows her to support individuals facing complex emotional challenges with depth, insight, and professionalism.

Dawn offers a compassionate, client-centered approach that honors each person’s unique journey. She is passionate about supporting individuals through significant life changes, addressing interpersonal challenges, and helping clients develop deeper self-understanding and resilience. Patients can expect a respectful, collaborative environment where they feel heard, supported, and empowered.

Dawn begins by learning each patient’s best hopes for therapy while gaining an understanding of their personal history and current concerns. She works collaboratively with patients to develop an individualized treatment plan that aligns with their goals, values, and vision for growth, adjusting the approach as needed over time.

Dr. David Guggenheim is an experienced clinical psychologist and health care administrator. He has worked with patients at different stages of life, including children, adolescents, and adults, and he has treated patients living with a wide range of mental health conditions, including anxiety, depression, post-traumatic stress disorder (PTSD), substance use, and attention-deficit hyperactivity disorder. Dr. Guggenheim has specific training in Trauma-Focused Cognitive Behavioral Therapy, Motivational Interviewing, and foundational training in dialectical behavioral therapy. Prior to joining Talkiatry, Dr. Guggenheim served as the Chief Behavioral Health Officer at Callen-Lorde Community Health Center in New York City, specializing in LGBTQ+ health care. In that role, he oversaw teams of providers including psychiatrists, psychologists, and social workers, who collectively provided care to thousands of patients in the New York metropolitan area. While at Callen-Lorde, he also served as co-chair for the behavioral health subcommittee of the Community Health Center Association of New York State; worked as an Adjunct Professor at Post University; and performed volunteer clinical work at the Weill Cornell Center for Human Rights. Before joining Callen-Lorde, Dr. Guggenheim worked as Associate Chief Behavioral Health Officer at Community Health Center, Inc., a federally qualified health center in Connecticut. A recognized expert, Dr. Guggenheim has delivered lectures to audiences ranging from medical schools to corporate executives, and he has been quoted in national media including The Advocate, Yahoo Finance, and Teen Vogue. Dr. Guggenheim has also been honored with an Early Career Achievement Award from the American Psychological Association in 2016. Dr. Guggenheim received his Bachelor of Arts from the University of Connecticut in 2002 and his Doctor of Psychology in Clinical Psychology from the American School of Professional Psychology at Argosy University/Washington, DC in 2009.