Hasan Bakhtier, MD

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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Dr. Michael Watkins is a board-certified adult psychiatrist. He completed his residency at The University of Texas Health Science Center at Tyler. In addition to being thoroughly trained in psychopharmacology, Dr. Watkins has also received extensive training in psychotherapy. From traditional psychodynamic therapy to the more modern mindfulness-based dialectical behavior therapy, Dr. Watkins takes the approach that best serves his patients. In addition to being trained in a variety of therapies, Dr. Watkins also employs a positive psychiatry approach which, as well as addressing a patient's symptoms, also focuses on their strengths and how they can be used to overcome adversity. Prior to pursuing a career in psychiatry, Dr. Watkins was a high school math teacher, and prior to that, he was an NCAA Division I college athlete. His teaching and athletic careers have given him a well-rounded perspective on the human experience. Drawing on his academic training and life experiences, Dr. Watkins meets patients where they are at, helps them overcome their obstacles, and serves as a guide and a resource for them on their journey to their desired destination.

Lance Briggs is a dedicated Psychiatric Nurse Practitioner with over a decade of clinical and leadership experience. A graduate of the University of North Dakota, Lance began as a psychiatric RN in acute inpatient settings before becoming a psychiatric RN supervisor in a major Houston hospital while pursuing advanced practice.

After becoming a PMHNP, Lance initially worked with outpatient addiction treatment and severe mental illness populations, later expanding into bariatric psychiatry to support patients preparing for weight-loss surgery. When the COVID-19 pandemic paused bariatric procedures, Lance founded a private practice—Grey Matters Mental Health—in Seattle, which was later sold to a larger healthcare organization in Minnesota. Lance then transitioned into correctional mental health, serving underserved populations within the criminal justice system. Currently, Lance is working at Talkiatry, providing compassionate, high-quality care informed by experience across diverse and challenging environments.

Lance understands that every patient is unique. His approach is grounded in Carl Rogers’ principle of unconditional positive regard, creating a safe, calming space where patients feel heard and valued. Lance takes time to explore developmental history, family background, and major life events, recognizing how past experiences shape present challenges. He aims to understand each symptom fully and offers thoughtful, collaborative treatment options.

Dr. Mitchell Laski earned a Bachelor of Science in Psychology from the University of Nebraska–Lincoln in 2011 and completed his medical degree at the University of Nebraska College of Medicine in 2017. He completed his residency in psychiatry at Naval Medical Center Portsmouth, Virginia, in 2021, where he was selected as Chief Resident. Dr. Laski has extensive experience in both outpatient and deployed settings, having completed two operational tours with the U.S. Navy. During these tours, he served in Embedded Mental Health Clinics and aboard deployed ships, working directly with Sailors.

Dr. Laski brings empathy, attentiveness, and a non-judgmental approach to every patient interaction. He is deeply committed to ensuring patients feel heard, respected, and understood. Patients can expect him to be thorough and dedicated, consistently advocating for their overall wellness throughout the course of treatment.

Understanding that beginning mental health care can be difficult, Dr. Laski starts with friendly, casual questions to build rapport—asking about patients’ background, interests, and current life situation. He then reviews their medical and psychiatric history before exploring current symptoms and stressors. Together, he and the patient collaborate to create a personalized treatment plan.

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Avi Adri is a board-certified psychiatric nurse practitioner with a passion for helping others achieve their goals through medication management and psychotherapy. He is trained in cognitive behavioral therapy, psychodynamic therapy, and supportive therapy. Avi has experience supporting individuals with depression, anxiety, OCD, bipolar disorder, PTSD, and ADHD. He is an LGBTQIA+ affirming provider who believes in empowering individuals in their lives.

He earned his Master of Science in Nursing with a specialty in psychiatry from Stony Brook University and a nursing practice degree from Chatham University. Avi is committed to providing evidence-based, compassionate treatment for mental health conditions to enhance quality of life. His previous experience includes two years at Columbia University Medical Center on an inpatient psychiatric unit and four years on the medical consultation-liaison psychiatric team, where he treated patients with a range of acute and chronic medical conditions while providing medication management and psychotherapy. His work at Columbia involved treating a wide spectrum of psychiatric conditions with the goal of achieving symptom remission.

Additionally, Avi has practiced at a private clinic in New York City, focusing on interventional techniques such as TMS and ketamine therapy, alongside medication management and psychotherapy.

Through mindful techniques and compassionate care, Avi is dedicated to the well-being of his clients. He views each person as more than a diagnosis and approaches care through a client-centered, holistic lens.

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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.‍