Ekta Rathee, PMHNP

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.‍

Dr. Fang is a board-certified psychiatrist who completed his psychiatry residency at Duke University, where he received extensive training in Psychopharmacology, Psychotherapy (“Talk Therapy”), Transcranial Magnetic Stimulation (TMS), and Electroconvulsive Therapy (ECT). Throughout his life, Dr. Fang has lived in various places such as China, Canada, Upstate New York, Maine, and North Carolina, where he currently resides. This rich cultural experience allows him to connect with individuals from diverse backgrounds, which is crucial in the field of psychiatry where treatment is so highly personal. Dr. Fang has also practiced in multiple settings including a college mental health clinic, an adult ADHD clinic, a perinatal psychiatry clinic, a VA hospital, and a residential recovery program.

While Dr. Fang’s current practice is primarily focused on medication treatment, he utilizes his training as a therapist to ensure that patients feel understood and empowered to discuss any other issues they might be facing. With experience in many modalities of therapy including Psychodynamic, Supportive, Cognitive Behavioral Therapy (CBT), and Acceptance and Commitment Therapy (ACT), Dr. Fang knows that one size does NOT always fit all. If more in-depth therapy is felt to be beneficial, Dr. Fang may refer clients to a separate therapist.

Dr. Candice Hacker is a board-certified Psychiatrist at Talkiatry. She completed her Psychiatry residency and a fellowship in Consultation Liaison Psychiatry at Mount Sinai/St. Luke's Hospital. She is passionate about a holistic approach to patient care, trained in psychosomatic medicine, and she has a deep appreciation for the intricate connection between the mind and body. With over 20 years of experience, Dr. Hacker has facilitated excellent outcomes in the treatment of various mental health conditions, including anxiety disorders, mood disorders, and trauma-related conditions. Dr. Hacker believes in creating a safe, nurturing and non-judgmental environment where patients can openly explore their emotions and experiences. By integrating evidence-based psycho-pharmacological modalities with mindfulness and cognitive-behavioral techniques, she empowers her patients to challenge a negative mindset and reach their goals. Beyond her clinical practice, Dr. Hacker is deeply committed to community mental health advocacy and the destigmatization of mental illness.

Margaret Ngumi, MSN, APRN, FNP-C, PMHNP-BC, is a dual board-certified Psychiatric Mental Health and Family Nurse Practitioner with over 20 years of experience in healthcare. She began her career as a Family Nurse Practitioner and later pursued a post-master’s certification in psychiatry to address the growing need for accessible mental health services. Margaret has extensive experience in both inpatient and outpatient settings, treating conditions such as depression, anxiety, PTSD, mood disorders, and substance use disorders.

She takes a collaborative, patient-centered approach to care, creating a safe and supportive environment where individuals feel heard and empowered. With a strong emphasis on holistic care, Margaret considers all aspects of a patient’s well-being—including lifestyle, relationships, and overall health. Whether through medication management, therapy, or lifestyle modifications, she is committed to helping patients achieve meaningful and lasting improvements in their mental health.

Margaret begins with a comprehensive psychiatric evaluation to understand each patient’s history, concerns, and goals. She then works closely with them to develop a personalized care plan that may include medication, therapy, and evidence-based lifestyle interventions. She prioritizes open communication, patient education, and ongoing collaboration to ensure treatment remains effective and evolves with each patient’s needs. Through her compassionate and evidence-based approach, Margaret is dedicated to helping individuals find balance and improve their overall quality of life.

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Dr. Elaine Kwok is a board-certified Adult Psychiatrist who has been practicing for 9 years. She specializes in depression and anxiety and believes in a holistic approach to the wellness of both the mind and body. Dr. Kwok conducts a comprehensive and individualized assessment for each patient utilizing a combination of medication management, lifestyle changes, and coping skills, creating a safe and therapeutic environment to facilitate healing and growth .Dr. Kwok received her undergraduate degree from New York University and her medical degree from St. George's University. She then completed her residency training at Seton Hall University. After training, she worked in the inpatient and outpatient units at Capital Health Medical Center in Trenton, New Jersey. She was a voluntary faculty member and trained residents and medical students from Rutgers Robert Wood Johnson Medical School. She has training in Cognitive Behavioral Therapy and Dialectical Behavioral Therapy. She actively participates in her local community to provide education and training for mental health providers. Dr. Kwok strives to collaborate and address hindrances that may interfere with an individual's best self. She focuses on creating a strong therapeutic relationship to support and facilitate balance, lifestyle enhancement, and emotional well-being. She looks forward to getting to know you and embarking on this journey together.

Dr. Orejarena is board certified by the American Board of Psychiatry and Neurology. She finished her residency from Yale University and the University of Texas Houston. She has done extensive research on psychiatry during her PhD in Neuropsychopharmacology and a Master's in Neuroscience. She is bilingual in Spanish and English. She incorporates different therapy modalities and evidence-based treatments, tailored to each person's needs. She enjoys applying her knowledge in neuroscience and pharmacology into her clinical practice and believes a combination of medication and psychotherapy yields the best treatment outcomes.

Her ultimate goal is to help patients feel their best and accomplish their own goals by developing tools to navigate internal or external obstacles that are part of life. Dr. Orejarena is originally from Colombia, where she earned her medical degree from Universidad Industrial de Santander. She pursued a Master's in Neuroscience at the University of Barcelona and a PhD in Neuropharmacology at the Universidad Pompeu Fabra in Barcelona, Spain. Her PhD thesis was honored summa cum laude.

She completed a postdoctoral fellowship training at the Institut de Neurobiologie de la Mediterranee in Marseille, France. She is the author of multiple peer-reviewed publications and has presented her research at national and international meetings. Over the years, she has worked in a variety of settings including outpatient clinics, acute care, psychiatric hospitals as an Assistant Professor of Psychiatry at the University of Texas Health Sciences Center.‍‍