Felicitas Koster, DO

Deora Johnson, PMHNP, is a board-certified adult psychiatric nurse practitioner with 24 years of experience. He is passionate about providing clients with a holistic approach to mental health care, incorporating both pharmacologic and non-pharmacologic interventions. Deora works with adult and senior populations, focusing on the assessment, diagnosis, and treatment of mental health conditions. He collaborates closely with clients to guide them through understanding and selecting the most effective interventions and medication management options for their needs. Supportive therapy, solution-focused therapy, and motivational interviewing are integral components of his medication management sessions.

Deora earned his Master of Science in Nursing from Vanderbilt University in Nashville, Tennessee, and completed a nursing practice degree at the University of Alabama in Birmingham. He has experience treating patients in a variety of outpatient and inpatient settings.

His areas of specialty include the treatment of major depressive disorder, anxiety disorders, bipolar disorder, ADHD, PTSD, and insomnia. His research focused on non-pharmacologic interventions for insomnia in individuals with depression.

Deora also has experience working with military veterans. At the VA Outpatient Clinic in Baltimore, Maryland, he treated veterans returning from Operation Iraqi Freedom and Operation Enduring Freedom, as well as those from the Vietnam and Korean War eras. His clinical work focused on PTSD, major depressive disorder, anxiety disorders, and bipolar disorder.

Deora believes the therapeutic relationship offers a unique opportunity to work collaboratively through life’s challenges. He views medication management as an important part of a comprehensive treatment plan that also includes therapy.

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Dr. Lucky Ly is a board-eligible psychiatrist who received his medical degree at Lake Erie College of Osteopathic Medicine and completed training in the psychiatric residency program at Millcreek Community Hospital. He has experience treating various psychiatric disorders including depression, anxiety, obsessive-compulsive disorder, bipolar disorder, attention deficit/hyperactivity disorder, and other related disorders. Dr. Ly uses evidence-based treatments and supportive psychotherapy such as cognitive behavioral therapy and interpersonal psychotherapy to help his patients. He encourages open communication and active participation as he believes they are key to successful treatment.

Rebecca Kostopoulos, PMHNP, is a board-certified psychiatric nurse practitioner committed to helping individuals facing mental health challenges lead full and balanced lives.

Her practice primarily focuses on medication management, often combined with supportive or emotionally focused therapy during 30-minute follow-up visits. When appropriate, Rebecca may recommend involving an additional therapist to ensure the most effective and comprehensive care.

She earned her Master of Science in Nursing with a specialization in psychiatry from Columbia University and her Bachelor of Science in Nursing from Boston College. Her training includes psychiatric diagnosis, medication management, and both psychodynamic and cognitive-behavioral therapies.

With over a decade of experience, Rebecca has evaluated and treated adults in a variety of clinical settings. Her previous roles include working at Elmhurst Hospital’s Comprehensive Psychiatric Emergency Program, Gracie Square Hospital’s inpatient unit, as well as in community health centers and skilled nursing facilities.

As a nurse practitioner, Rebecca believes that mental health is just as vital as physical health. She values the therapeutic relationship and approaches treatment with empathy and collaboration, ensuring that each patient receives personalized and compassionate care.

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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.

Consuelo Reddick, MD, completed her medical degree and adult psychiatry residency at the University of Alabama at Birmingham, followed by fellowship training in child and adolescent psychiatry at Harvard Medical School’s Cambridge Hospital. She is double board-certified in general psychiatry and child and adolescent psychiatry. Her career has included roles in inpatient and outpatient care, academic settings, consulting, and telepsychiatry across multiple states.

Dr. Reddick works collaboratively with patients, ensuring they feel heard, respected, and informed. She emphasizes psychoeducation to empower patients in their treatment journey and encourages open communication to build trust and partnership. She treats a range of conditions, including anxiety, depression, and ADHD, in both children and adults.

An initial assessment with Dr. Reddick includes a thorough review of personal and medical history, identification of concerns, and the development of treatment goals. She often integrates supportive therapy with medication management to provide individualized, effective care that promotes both symptom relief and long-term well-being.

Dr. Jessica Marz is a psychiatrist who completed her undergraduate studies at the University of Florida and earned her medical degree from the Florida State University College of Medicine. She went on to complete her psychiatry residency at the University of Florida College of Medicine Jacksonville. Dr. Marz treats adults experiencing a variety of mental health concerns, including anxiety, depression, PTSD, OCD, ADHD, bipolar disorder, and adjustment-related challenges.

Dr. Marz is a compassionate and thoughtful psychiatrist committed to holistic, patient-centered, evidence-based care. She approaches each individual with warmth and without judgment, fostering a therapeutic environment built on open communication and trust. She believes that strong rapport is essential to achieving meaningful progress in treatment.

Dr. Marz combines medication management with supportive psychotherapy, incorporating cognitive-behavioral techniques and motivational interviewing. She customizes each treatment plan to align with the patient’s personal goals and evolving needs, recognizing that healing is a highly individualized journey.Dr. Jessica Marz is a psychiatrist who completed her undergraduate studies at the University of Florida and earned her medical degree from the Florida State University College of Medicine. She went on to complete her psychiatry residency at the University of Florida College of Medicine Jacksonville. Dr. Marz treats adults experiencing a variety of mental health concerns, including anxiety, depression, PTSD, OCD, ADHD, bipolar disorder, and adjustment-related challenges.

Dr. Marz is a compassionate and thoughtful psychiatrist committed to holistic, patient-centered, evidence-based care. She approaches each individual with warmth and without judgment, fostering a therapeutic environment built on open communication and trust. She believes that strong rapport is essential to achieving meaningful progress in treatment.

Dr. Marz combines medication management with supportive psychotherapy, incorporating cognitive-behavioral techniques and motivational interviewing. She customizes each treatment plan to align with the patient’s personal goals and evolving needs, recognizing that healing is a highly individualized journey.