Viga Naik, MD

Dr. O'Brien is a board-certified adult psychiatrist who completed his medical education at Northeast Ohio Medical University. Following his graduation from NEOMED, he completed a residency in Psychiatry and Behavioral Medicine at West Virginia University/Charleston Area Medical Center. Throughout his training, he has enjoyed working in both outpatient and hospital settings and has a great passion for medical education and teaching the next generation of mental healthcare providers. Dr. O'Brien's practice focuses on medication management for a wide variety of mental health diagnoses, including anxiety disorders, depression, Bipolar Disorders, Obsessive Compulsive Disorder, Tic Disorders, and Post Traumatic Stress Disorder. In addition to medication, he offers a mixture of Cognitive Behavioral Therapy, Dialectical Behavioral Therapy, and Psychodynamic Therapy during 30 minute follow up appointments. Dr. O'Brien believes in a truly collaborative and holistic approach to mental healthcare, striving to involve patients and all members of the healthcare team in every aspect of care.‍

Margaret Mary Reyes, MSN, APRN, PMHNP-BC, is a board-certified Psychiatric Mental Health Nurse Practitioner committed to delivering patient-centered and compassionate mental health care. A proud Florida native, she earned her Bachelor of Science in Nursing (BSN), Master of Science in Nursing (MSN), and post-master’s certification in Psychiatric Mental Health Nursing from Florida Atlantic University (FAU). Her academic research focused on improving outcomes for women living with Premenstrual Dysphoric Disorder (PMDD).

Margaret has advanced practice experience in both inpatient and outpatient psychiatric settings. She has treated individuals with a wide range of mental health conditions, including psychotic disorders, bipolar spectrum disorders, depressive and anxiety disorders, trauma-related disorders, attention deficit disorders, personality disorders, substance use and co-occurring disorders, eating disorders, suicidality, homelessness, and severe mental illness (SMI) within the criminal justice system. Her clinical background also includes acute care experience in oncology, medical-surgical, telemetry/cardiac step-down, intensive care, nursing research, and consultation-liaison psychiatry.

She takes an integrative and comprehensive approach to mental health care, combining medication management with evidence-based complementary and alternative interventions. Her practice is grounded in the understanding of the mind-body-spirit connection and the gut-brain axis. Margaret incorporates supportive therapy, motivational interviewing, and mindfulness-based cognitive techniques to support her patients’ overall well-being.

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Dr. Adela Stroescu is a board-certified psychiatrist with seven years of clinical experience treating adults in both outpatient and inpatient settings. She specializes in mood disorders, psychosis, anxiety, PTSD, and ADHD. Dr. Stroescu earned her medical degree from St. George’s University School of Medicine and completed her psychiatry residency at the University of Maryland/Sheppard Pratt. She speaks English and conversational Romanian.

Dr. Stroescu fosters a respectful, non-judgmental space where communication is clear, and care is recovery oriented. She prioritizes building a therapeutic relationship grounded in empathy and trust to support each patient’s unique path to wellness.

Dr. Stroescu begins with a comprehensive psychiatric evaluation to create a personalized treatment plan aligned with the patient’s goals. She uses evidence-based medication management and offers supportive psychotherapy and psychoeducation to empower patients throughout their treatment journey.

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Dr. Michael Locher completed Adult Psychiatry Residency Training at Los Angeles County, University of Southern California in which he focused two years of training in conducting Mindfulness Based Cognitive Therapy. Dr. Locher received his Bachelor of Science Undergraduate degree in 3 years with Phi Beta Kappa honors at University of Miami, Florida. In medical school at Stony Brook School of Medicine in New York, Dr. Locher was inducted into the Gold Humanism Honor Society while earning his Doctor of Medicine (MD) degree. Dr. Locher has held academic appointments at University of Southern California Keck School of Medicine, College of Osteopathic Medicine of the Pacific Western University of Health Sciences, and Ventura Community Memorial Health System Psychiatric Residency Training Program. He has an in interest working with immigrants and LGBTQ+ communities.  

Dr. Locher’s approach to medication management is that it is one tool to be used in the broader context of a multi-modal evidence-based treatment approach that draws upon psychotherapy, mindfulness skills, Buddhist psychology, psychedelic AKA “mind manifesting” studies, yoga philosophy, and other integrative practices. He understands that healing is an individualized process that cannot unfold without a safe space. Dr. Locher is dedicated to holding an approachable, empathic space where you can feel empowered to write the next chapter of your life.  

Dr. Locher is well versed in treating the full spectrum of mental illness. Having worked on multidisciplinary teams in acute inpatient psychiatric hospital settings, psychiatric emergency rooms, and mental health urgent cares for the better part of 10 years, he is comfortable helping with not just mild to moderate illness, but also the most severe cases of mental illness. Dr. Locher is especially motivated to work with you to maintain stability, avoid hospitalization, and more broadly, to achieve wellness.

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Background and credentials

Dr. Agarwal is a board-certified adult psychiatrist. He obtained his bachelor's degree in Biological Sciences from the University of California at Irvine and graduated cum laude with his medical degree from the American University of Antigua. Dr. Agarwal completed his psychiatry residency training at the University of Central Florida, where he was elected chief resident.

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Treatment approach

Dr. Agarwal employs a collaborative and patient-centered approach, primarily focusing on medication management in combination with supportive therapy. He is a strong advocate of psychoeducation, believing it to be an integral part of effective psychiatric care. Dr. Agarwal specializes in treating adults experiencing depression, anxiety, PTSD, and insomnia. He is also experienced in managing patients with psychiatric conditions complicated by medical comorbidities such as obesity, hypertension, chronic pain, and diabetes.

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What you can expect in a first visit

Patients visiting Dr. Agarwal for the first time can anticipate a comprehensive evaluation conducted in a collaborative and supportive environment. Dr. Agarwal prioritizes understanding each patient's individual needs and concerns, creating a personalized treatment plan that integrates medication, supportive therapy, and psychoeducation. Follow-up visits typically last about 30 minutes, allowing time to adjust treatment and reinforce therapeutic strategies.

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Why Talkiatry?

We’re a virtual mental health practice that makes it easy to find great care. We combine quality and convenience to help you thrive—faster. Our providers, like this one, are highly trained experts who specialize in medication management and collaborate with you on a treatment plan that fits your needs and comfort level.

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Dr. Sharon Kahler is Board Certified in Adult and Child & Adolescent Psychiatry and treats patients of all ages. She has over a decade of experience in both community mental health centers and private practice, working with individuals from diverse backgrounds. She earned her medical degree from New York Medical College, completed Adult Psychiatry Residency at New York-Presbyterian/Weill Cornell, and completed Child and Adolescent Fellowship training at NYU Langone and Bellevue Hospital. Her clinical interests include mood and anxiety disorders, PTSD, and childhood psychiatric disorders.

Dr. Kahler is committed to providing compassionate, high-quality mental health care. She fosters a therapeutic, nonjudgmental environment where patients can openly share their concerns and values. Viewing treatment as a partnership, she encourages patients to play an active role in their care and takes a whole-person approach, considering lifestyle, environmental, and social factors that contribute to healing.

Dr. Kahler begins with a comprehensive assessment to understand each patient’s history, background, and treatment priorities. She develops individualized treatment plans using evidence-based approaches, supporting patients in navigating life’s challenges and finding a path to mental wellness.