Stephanie Negrey, MD

Serena Mirchandani is a board-certified psychiatric nurse practitioner with extensive experience treating serious mental illnesses such as bipolar disorder and schizophrenia spectrum disorders. She also provides care for individuals with depression, anxiety, PTSD, OCD, autism spectrum disorder, and substance use disorders. Serena earned both a Master of Science in Nursing and a Doctorate in Nursing Practice in psychiatry from Columbia University. She completed a Nurse Practitioner Fellowship at Community Healthcare Network and worked at Bellevue Hospital for 2.5 years, providing care on an inpatient psychiatric unit for a diverse, underserved population.

Serena’s approach is grounded in open communication, evidence-based care, and deep respect for each patient’s lived experience. She prioritizes a collaborative, safe space where individuals feel heard, respected, and empowered. Her holistic style supports honest conversation, transparency in treatment options, and patient-centered goals.

Serena begins with a comprehensive assessment to understand each patient's full story—biological, psychological, and social. She then partners with patients to develop personalized, evidence-based treatment plans that align with their values and goals. She emphasizes education, transparency, and regular follow-up to support ongoing progress and informed decision-making.

Dr. Tobias Murphy is a psychiatrist with Talkiatry who is licensed to provide care in the states of Ohio, West Virginia, and New York. He completed medical school and psychiatry residency at Marshall University's School of Medicine. He has additional training in neuropsychiatry and geriatric psychiatry. During his training, Dr. Murphy was actively involved in teaching medical students and residents. His most frequent lectures included LGBT and transgender mental health. He is a member of the American Psychiatric Association, the American Association of Gay and Lesbian Psychiatrists, the Gay and Lesbian Medical Association, the World Professional Association for Transgender Health. He was inducted into the Gold Humanism Honor Society and given awards for Inclusion and Advocacy as well as Honors in Community Service during training. He has published papers, presented at conferences, and served as an ad-hoc reviewer for medical journals. Dr. Murphy approaches medication management through the lens of compassionate listening and psychotherapy, seeking to reduce the stigma of mental illness and put patients at ease during their visits. He has experience treating a variety of conditions, including bipolar disorder, depression, OCD, PTSD, ADHD, and anxiety. He enjoys working with a diverse population of patients providing culturally informed care. Follow-up patient visits will include both supportive therapy and medication management during 30-minute encounters.

Dr. Stephen Geisler is a board-certified adult psychiatrist and has been practicing for over 37 years. His practice focuses on medication management, and typically offers this in conjunction with supportive therapy in 30-minute follow-up visits. If Dr. Geisler feels you would benefit from working with a therapist in conjunction with medication management, he welcomes collaboration with your therapist to make for the best outcome. Dr. Geisler is a graduate of the New York University School of Medicine. He completed a fellowship in Psychoanalytic Psychotherapy at the Zucker Hillside Hospital of Northwell Health after finishing his residency training there. He is currently an Assistant Clinical Professor at the Donald and Barbara Zucker School of Medicine at Hofstra/Northwell. Over the years Dr. Geisler has received a number of awards including NAMI Exemplary Psychiatrist Award, The APA Irma Bland Certificate of Excellence in Teaching Residents, the Zucker Hillside Hospital Department of Psychiatry Recognition Award for Education, and twice received the Outstanding Teacher of the Year Award from the graduating residents' class. Dr. Geisler is a member of the American Psychiatric Association, the Nassau Suffolk District Branch of the APA and the American Society of Clinical Psychopharmacology. Through the years, Dr. Geisler has participated in many clinical research projects, has been the co-author of many papers, and has made many presentations. Dr. Geisler specializes in psychopharmacology, especially tailoring individualized treatment to serve the needs of patients with a variety of conditions. He has a lot of experience in treating patients with depression, bipolar disorder, anxiety disorders, ADHD, and OCD.

Dr. Jacob T. Kannarkat is an adult psychiatrist. Dr. Kannarkat's practice focuses on medication management. In his visits, he uses an integrative approach, blending an empathic, problem-solving orientation with an understanding that the reasons for an individual's condition can be complex. He has experience dealing with many forms of mental illness and works collaboratively with his patients and their other treatment providers in making a plan for recovery. Dr. Kannarkat completed undergraduate studies at the University of Florida. After receiving his medical degree at the University of Miami Miller School of Medicine, Dr. Kannarkat continued for residency at the University of Miami/Jackson Health System. He ultimately completed his training as Chief of Psychiatric Emergency Services at Yale School of Medicine. Dr. Kannarkat has experience working with adults of all ages who are dealing with depression, anxiety, bipolar disorder, PTSD, substance use disorders, and many other conditions.‍

Dr. Georgia Gaveras holds the position of Co-Founder and Chief Medical Officer at Talkiatry. She is triple board-certified in child and adolescent psychiatry, adult psychiatry, and addiction medicine. She has been practicing for over 18 years. Dr. Gaveras's practice focuses on medication management. Typically, she offers this in conjunction with supportive or emotionally focused therapy in 30-minute follow-up visits. However, occasionally Dr. Gaveras may believe that additional therapy is also needed and ask that you bring a therapist into your care team to provide the best outcome. She received her medical degree from the University of New England College of Osteopathic Medicine in Biddeford, ME, before moving back to NY to complete her residency at the SUNY Downstate Medical Center and a fellowship in child and adolescent psychiatry at St. Luke's-Roosevelt Hospital. After completing training, she remained and worked with dually-diagnosed adolescents at the Comprehensive Rehabilitation and Education Service (CARES) before becoming the Director of Training and Education for the Mount Sinai St. Luke's and Roosevelt Hospitals. She was then the associate director of child and adolescent emergency psychiatry at Cohen Children's Medical Center before becoming the Director of the Comprehensive Psychiatric Emergency Program (CPEP) at Kings County Hospital in Brooklyn. Dr. Gaveras has held academic appointments at Columbia University College of Physicians and Surgeons, Mount Sinai Icahn School of Medicine, Touro College of Osteopathic Medicine, Zucker School of Medicine, and SUNY Downstate Medical College. In addition, she has appeared in numerous professional publications and authored several research papers. In addition to general, child, and adolescent psychiatry, Dr. Gaveras is also board-certified in addiction medicine and trained in the Eating Disorders, Compulsions and Addictions Service (EDCAS) program at the William Alanson White Institute. She completed her undergraduate studies at New York University. While having treated a wide variety of patients, her primary clinical focus has been in treating adolescents and young adults with co-occurring substance use disorders.

Ashley is an ANCC board-certified Psychiatric Mental Health Nurse Practitioner with over a decade of experience in Psychiatry. She has worked in inpatient and outpatient settings, crisis centers, and psychiatric emergency rooms. Ashley is deeply committed to working collaboratively with individuals to enhance their well-being, creating a personalized care plan tailored to each person’s unique needs.

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Her approach integrates medication management, supportive psychotherapy, and lifestyle interventions. As a prescriber specializing in psychopharmacology, Ashley provides comprehensive medication management while utilizing a shared decision-making model. She actively involves clients in their treatment planning, discussing various options to determine the most effective path forward.

During the initial session, Ashley prioritizes establishing a comfortable, open environment where clients feel at ease. She will review medical and psychiatric history, discuss treatment goals, and explore different therapeutic options based on individual preferences. Ashley encourages questions throughout the process to ensure a collaborative and supportive treatment experience.