Lopa Rana, MD

Dr. Stephen Cox earned his medical degree and completed his residency at the University of Toledo Medical College. He is a board-certified psychiatrist with over 20 years of experience providing care in outpatient, inpatient, university health, nursing home, and correctional settings. He has developed treatment relationships with patients from diverse backgrounds, enriching his clinical knowledge and informing his decision-making. Outside of work, he enjoys spending time with his family, hiking, and listening to music.

Patients working with Dr. Cox can expect a relationship grounded in respect, empathy, and collaboration. He prioritizes listening carefully, creating a safe space to share thoughts and history without judgment.

Early sessions involve a thorough assessment of symptoms, life circumstances, medical history, and personal goals. Dr. Cox collaborates with patients to balance therapy, lifestyle adjustments, and medication. He regularly reviews progress and adjusts care based on feedback, ensuring patients feel understood as whole individuals. The treatment relationship is a partnership that promotes healing, growth, and well-being.

Kenneth Kavanagh is board certified as both a Psychiatric/Mental Health Nurse Practitioner and an Adult Nurse Practitioner.  His career has spanned 30 years with the last 17 years devoted exclusively to psychiatry.  He integrates his knowledge of psychiatry and primary care into evidence-based medication management strategies.  He also possesses a good working knowledge of alternative treatments and integrating alternative treatments into more traditional approaches.  When needed to enhance patient care outcomes, he frequently works collaboratively with psychotherapists, primary care providers, and/or medical specialists.  

Kenneth currently focuses on managing depressive disorders, anxiety disorders, adjustment disorders, ADHD, somatic disorders, OCD, and bipolar disorders.  Kenneth has significant experience in working with diverse groups, including urban and rural populations across socioeconomic spectrums, professionals and college students on all levels, members of the LGBTQ community, individuals confronting life stage transitions, and people living with chronic medical conditions.  

Kenneth’s psychotherapeutic methods are diverse and evolve to meet collaboratively developed treatment goals.  Kenneth’s interaction style is always empathic and respectful but can range from comforting and supportive to more directive and therapeutically confrontational strategies to maximize treatment goals, often with significant doses of humor throughout the therapeutic relationship.

Dr. Cyndia Choi has been board certified in psychiatry since 1991. She has 30 years of experience treating a diverse population of cultures, LGBTQ issues, and different age groups from young adults to seniors. After attending Johns Hopkins University in Baltimore for her bachelor's degree, Dr. Choi received her medical degree from The University of Medicine and Dentistry of New Jersey at Rutgers Medical School. She went on to complete a general medical internship at Hahnemann University Hospital in Philadelphia and then her Psychiatric residency at the University of Pennsylvania .Dr. Choi has treated patients who have had a broad spectrum of diagnoses including major depressive disorder, post-traumatic stress, bipolar disorder, OCD, panic and anxiety, and addiction. Although the majority of her work has been in outpatient care, Dr. Choi has worked in emergency settings, inpatient units, and as a consultation-liaison to medical units. She has also enjoyed the honor of working with US military veterans. Dr. Choi's specialty is medication management, however, she believes that a therapeutic relationship is crucial to treatment. Dr. Choi values the privilege of getting to know each patient personally to develop a patient-centered plan of care.‍Typical follow-up appointments with Dr. Choi are 30 minutes in length to check on medication effects and for supportive therapy. If she believes that you may benefit from more in-depth therapy, she may recommend adding a therapist to your treatment team. Dr. Choi also believes in a holistic approach toward helping you achieve a healthy and fulfilling quality of life.

Dr. Tetyana Tarnavsky is a board-certified psychiatrist trained in Adult Psychiatry. She attended Dnipropetrovsk State Medical Academy in Ukraine where she received her M.D., M.S. and Ph.D. degrees in Psychiatry. Dr. Tarnavsky completed her residency at Harvard South Shore Psychiatry Residency Training Program in MA, where she was elected chief resident. Dr. Tarnavsky has an extensive research experience in Ukraine and the USA. She had studied computer addiction for her dissertation; had multiple abstracts and presentations; published several articles in peer-reviewed psychiatric journals as well as a book entitled Computer Addiction: Formation, Diagnosis, Correction and Prophylaxis. She has helped organize international conferences with the goal of improving access to and quality of healthcare in Dnipropetrovsk, Ukraine, and providing a national model for health care reform. Dr. Tarnavsky has worked with a variety of patients with diverse backgrounds in a Community Health Center and in the Partial Hospitalization Program as well as supervised medical students, psychiatry residents, and nurse practitioners. She has been a lecturer on psychiatry at Harvard Medical School and was involved in the training of psychiatry residents in the Harvard South Shore Psychiatry Training Program. Her primary focus has been on treating adults with depression, anxiety, post traumatic stress disorder, adjustment disorder, ADHD and other disorders. Dr. Tarnavsky strives to provide quality and compassionate treatment to individuals and their families.‍

Background and credentials    

Dr. Catherine Cashman is triple board-certified by the American Board of  Psychiatry and Neurology in Adult Psychiatry, Child & Adolescent  Psychiatry, and Forensic Psychiatry. She holds two Bachelor’s degrees: one in  Finance from New York University, and another in Biology from the University  of New Orleans. She earned her medical degree from Nova Southeastern  University and completed an Adult Psychiatry residency at LSU Health Sciences  Center in New Orleans. Dr. Cashman subsequently completed two fellowships:  the first in Child & Adolescent Psychiatry at LSU New Orleans, along with  a certification in Infant Mental Health (working with children ages 0–6 years  and their caregivers); the second fellowship was in Forensic Psychiatry at  the University of Rochester and the Rochester Regional Forensic Unit.    

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Treatment approach    

Dr. Cashman brings an extensive and specialized skillset to psychiatry,  informed by her triple board-certifications. Her treatment approach  integrates clinical expertise from adult, child and adolescent, and forensic  psychiatry, emphasizing accurate diagnosis, risk assessment, and  evidence-based care. With specialized expertise in forensic psychiatry and  competency assessments, she employs rigorous evaluation methods to accurately  inform treatment planning and risk management, particularly in complex or  legally-involved cases.    

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What you can expect in a first visit    

Patients visiting Dr. Cashman for the first time can expect a detailed and  comprehensive psychiatric evaluation. Given her forensic and clinical  experience, initial assessments are thorough, focusing on clear diagnostic  understanding, individualized risk assessment, and appropriate treatment  planning. Patients can anticipate a collaborative, professional, and  structured environment aimed at clarifying diagnoses and addressing their  unique mental health needs effectively.    

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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.

Dr. Natarajan is a Psychiatrist at Talkiatry providing psychiatric services to adults ages 18 and older. In her practice, Dr. Natarajan focuses on medication management and psychoeducation, often along with supportive therapy. She is committed to providing evidence-based and patient-centered quality care for her patients. She is dedicated to working collaboratively with patients as a team in order to help patients to the best of her ability. Dr. Natarajan received her medical degree from Rutgers Robert Wood Johnson in NJ. She then completed her psychiatry residency at Rutgers Robert Wood Johnson as well, where she served as Chief Resident. Dr. Natarajan has a vast array of clinical interests in psychiatry and behavioral health, including anxiety and mood disorders as well as wellness. In her free time, she enjoys traveling to new places, and spending time with her family and friends.