Mark Helms, MD

Dr. Roxanne McClung is a board-certified psychiatrist, specializing in general adult psychiatry.  She completed her General Psychiatry Residency at the University of Texas Health Science Center at Tyler, where she served as Chief Resident in her final year of training. She earned her MD (Doctor of Medicine) from the American University of the Caribbean, a Master of Science in Clinical Psychology from the University of Texas at Tyler, and a Bachelor of Arts in Psychology from Southern Methodist University. With over 20 years of experience in the mental health field, Dr. McClung brings a uniquely comprehensive and well-rounded approach to psychiatric care.  Having served in multiple roles – including case manager, psychotherapist, and program/clinical director –she has a deep understanding of patient care across various settings and perspectives.

Dr. McClung is passionate about helping people through life’s challenges. She creates a non-judgmental, patient-centered environment that fosters open communication and collaboration. She emphasizes individualized care that integrates medicine, lifestyle interventions, and psychotherapy. Treatment plans are grounded in the understanding that mental health is influenced by biological, psychological, social, and lifestyle factors.

Dr. McClung begins with a thorough assessment to understand each patient’s history, concerns, and goals. She works collaboratively to create a personalized treatment plan, and her approach ensures clarity, respect, and patient involvement throughout the process.

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.

Dr. Scott Masters is a Board-Certified psychiatrist and psychoanalyst with over 30 years' experience in medication management and therapy. He is living in Hawaii after a 20-year training and working in New York City.

Columbia University Vagelos College of Physicians and Surgeons

Columbia University Psychiatry Residency Program, Chief Resident

Columbia University Public Psychiatry Fellowship

Columbia University Center for Psychoanalytic Training and Research

Dr. Masters offers an integration of medication management and various psychotherapy. He is certified in supportive psychotherapy, prolonged exposure therapy for PTSD, motivational interviewing, CBT for chronic pain, Integrated Behavioral Couples Therapy and Whole Health.  With the right combination of treatments, patients can achieve their potential and relieve suffering.

In an initial visit, patients can expect a thorough, collaborative discussion with shared decision making to understand their symptoms, life goals, and clinical needs. Dr. Masters will evaluate the patient's condition to determine appropriate medication interventions and discuss personalized treatment recommendations including integrated psychotherapy.  Typical follow-up visits are approximately 20-30 minutes in length. Depending on the severity and complexity of a patient's situation, referrals to additional counseling or therapy may also be suggested.

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* THIS PROVIDER CANNOT PRESCRIBE CONTROLLED SUBSTANCES FOR MN PATIENTS * Dr. Dung ("Young”) Truong is board-certified in both psychiatry and family medicine. Prior to joining Talkiatry, he worked in a busy Minneapolis emergency room for 20 years. He cared for patients presenting in mental health crisis, treating their acute presentation and helping find solutions to their concerns, ranging from starting and adjusting medications to identifying and addressing contributing factors such as medical illness, substance use, and life stressors. Dr. Truong has extensive experience and can comfortably manage a wide range of illnesses and problems. He sees patients of all ages and ethnicities, including LGBTQ+ populations. He has interests in mood disorders during and after pregnancy, and immigrant and refugee mental health. Dr. Truong's approach is to help you ultimately feel better and move forward with a hopeful plan involving medication management, education about your illness, and therapy to manage your emotional and environmental stressors. He is known for his calm demeanor and his excellent instincts. He strives to meet your expectations. Recognizing the challenges and complexities of the mental health condition, he also encourages input from your established care provider, therapist, and loved ones who want to be involved in your care. He feels such collaboration provides optimal treatment .Dr. Truong has also worked as a psychiatrist in an integrated primary care clinic. He has taught and supervised medical students, psychiatric residents/fellows and family medicine residents. He has collaborated extensively with social workers, therapists, and other health care providers to achieve the best outcomes for his patients. He works on staying current with the latest evidence-based care and mental health treatments.

Dr. Clark is a board-certified adult psychiatrist. She is fellowship-trained in Child and Adolescent Psychiatry and has been in practice for 11 years. She received her medical degree from the Medical University of South Carolina. Dr. Clark then completed her residency training and continued her training in child and adolescent fellowship at the Medical College of Georgia. Dr. Clark works with patients to create an environment where they feel comfortable and supported. She focuses on medication management along with supportive therapy. Normally visits are 30-minute follow-ups that allow time to focus on areas of support needed. If additional therapy is recommended, she will request a therapist be added to your care team to meet all your needs. Dr. Clark has worked in both inpatient and outpatient settings with adult, child, and adolescent populations. She has worked in private practice as well as community mental health, where she worked with reaching under-served communities. Dr Clark has a passion for treating both adult and child and adolescent patients with anxiety and depression.

Lindsey Stewart, PMHNP, holds three Bachelor’s degrees in Biology, Medical Technology, and Nursing, as well as a Master of Science in Nursing. She began her nursing career in 2011, working in inpatient psychiatry, and later expanded her experience to community mental health and home health for patients with behavioral health needs. In 2018, she earned her PMHNP certification from the University of Missouri–Kansas City and has since spent six years providing behavioral health medication management at an FQHC, treating patients across the lifespan.

Lindsey is passionate about her work and values each patient’s unique life story. She focuses on meeting patients where they are and creating customized treatment plans that align with their goals. Her care is rooted in a patient-centered approach, ensuring collaboration and respect throughout the treatment process.

Lindsey’s process blends structure with flexibility, tailoring care to each patient’s needs. She begins by establishing a diagnosis and treatment plan, integrating medication management, therapy, collaborative goal-setting, and ongoing progress monitoring. This holistic approach supports both mental health and overall well-being.