Albert Luong, MD

Dr. Christopher DeBernard is a board-certified psychiatrist with extensive clinical leadership experience. He earned his MD and completed a combined residency in Internal Medicine and Psychiatry at Tulane University School of Medicine. Previously board certified in Internal Medicine, he is especially comfortable caring for patients with medical comorbidities. Dr. DeBernard has worked in both inpatient and outpatient settings and held leadership roles as Chief Medical Officer at Arisa Health and Lotic.ai. He also brings a systems-thinking perspective to clinical care from earlier careers in engineering and consulting. He holds active medical licenses in Louisiana and Arkansas.

Dr. DeBernard strives to create a warm, collaborative environment where patients feel respected, understood, and supported. His approach combines evidence-based medicine with an appreciation for each patient’s unique story, values, and motivations. Patients can expect open, direct communication, shared decision-making, and treatment plans that align with their personal goals. Trust, empathy, and authenticity form the foundation of his therapeutic relationships.

Dr. DeBernard begins by listening closely to each patient’s history, concerns, and hopes for treatment. Together, he works with patients to establish clear goals and develop individualized care plans that may include therapy, medication management, and lifestyle approaches. His focus is on both symptom relief and building long-term resilience, helping patients develop strategies that sustain well-being. Over time, he collaborates with patients to adapt treatment as their needs evolve, ensuring care remains effective and personalized.

Justin Stone is a board-certified Psychiatric-Mental Health Nurse Practitioner (PMHNP) with experience in both outpatient and inpatient psychiatric settings, including in-person and telehealth care. He completed his undergraduate and master’s programs at Southern Adventist University in Collegedale, Tennessee. Justin is committed to providing compassionate, patient-centered care that addresses the whole person—mind, body, and environment.

Justin works collaboratively with patients to reach personal goals and support a more fulfilled life. He strives to create an open, judgment-free relationship where patients can be completely themselves. His aim is to provide a safe space for vulnerability without fear of judgment, fostering trust and partnership in the therapeutic process.

Patients can expect a thorough initial evaluation to ensure the correct diagnosis is addressed from the start. Justin prioritizes safety and evidence-based best practices while tailoring treatment plans to individual goals. His approach is focused on developing personalized strategies that help patients achieve meaningful improvements in mental health and overall well-being.

Shanika is a dedicated and compassionate board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP-BC) with over a decade of experience in the mental health field. She holds a Bachelor of Science in Nursing, a Masters in Nursing Education, and a Post-Master’s Certificate as a Family Psychiatric Nurse Practitioner. Shanika is known for her patient-centered approach, prioritizing empathy, respect, and individualized care. She is committed to building strong therapeutic relationships grounded in trust and open communication.

New patients can expect a warm, non-judgmental environment where they feel heard and supported. Shanika collaborates closely with each patient to create personalized treatment plans, helping them feel empowered in their mental health journey.

Shanika begins with a comprehensive psychiatric evaluation to understand each patient’s history, symptoms, and goals. Her treatment may include medication management, supportive therapy, and psychoeducation. She specializes in anxiety, depression, bipolar disorder, ADHD, trauma/PTSD, mood disorders, and women’s mental health. Shanika has extensive experience providing care for both adolescents and adults in outpatient settings, with a particular focus on underserved communities.

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Dr. Carmen Orellana is a Staff Psychiatrist at Talkiatry who has been in practice for over 6 years, both in the U.S. and abroad. She is double board-certified in child and adolescent psychiatry and adult psychiatry. Dr. Orellana's practice focuses on medication management. She strives to provide exceptional medical care and has extensive experience in treating persons with diverse behavioral disorders and backgrounds. Dr.Orellana involves her patients in all decisions about their health, and provides care that is respectful of patient preferences, needs, and values. Typically, she would recommend evidence-based treatments to her patients and may, occasionally, believe that concurrent therapy is also needed. She would ask that you bring a therapist into your care team to provide the best outcome. Dr.Orellana received her medical degree from Universidad Evang�lica de El Salvador. Dr. Orellana completed a residency in Psychiatry and a fellowship in child and adolescent psychiatry at the Southern University School of Medicine in Springfield, Illinois. After completing her training, Dr. Orellana remained in the school, where she worked as an Assistant Professor of Child and Adolescent Psychiatry, supervising and teaching medical students, residents, and fellows, and treating patients with various psychiatric conditions. Dr. Orellana has experience in treating treatment-resistant mood disorders with electroconvulsive therapy (ECT) and transcranial magnetic stimulation (TMS).‍

Dr. Jon-Kar Zubieta is a board-certified psychiatrist and nuclear medicine physician whose work bridges neuroscience and clinical care. He focuses on understanding how the brain regulates motivation and stress, applying this knowledge to mood disorders, pain, and substance use. With extensive experience in functional imaging, Dr. Zubieta explores how neurobiological mechanisms shape emotional and physical well-being.

Dr. Zubieta takes a collaborative and evidence-based approach to care. He values patient perspectives and prioritizes creating a supportive environment where patients feel heard. His goal is to tailor treatment plans that address both the psychological and biological aspects of mental health conditions.

Dr. Zubieta begins with a thorough assessment of each patient’s history, symptoms, and goals. He integrates clinical evaluation with insights from neuroscience and imaging research when relevant. Together with patients, he develops a personalized treatment plan that may include therapy, medication, or combined approaches, continually adjusting strategies to optimize outcomes.

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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