Sabrina Ghim, MD

Dr. Solomon’s presence at Talkiatry brings her career full circle and back to her greatest joy as a psychiatrist—working directly with patients one‑on‑one to help them integrate the complexity of their feelings, beliefs, and personal reality in the context of an increasingly complicated world around them.

Her qualifications include a B.A. in biology from Harvard University and an M.D. from Tufts School of Medicine. She completed psychiatry residencies at Mt. Sinai and Brown and is board certified in both Psychiatry and Addiction Medicine. Her four decades of practice have exposed her to an eclectic range of cultures, ethnicities, and pathologies in a wide variety of settings, from solo practice to regional medical centers to academic institutions. Her breadth and depth of clinical and life experience have helped her transcend cultural biases and institutional conventions and to more clearly see each patient as a uniquely complex and lovable individual.

Dr. Solomon takes a compassionate, individualized, and pragmatic approach to treatment, beginning in the first visit with a full history and discussion with the patient of their symptoms, challenges, and goals. Follow‑up visits are tailored to the patient’s evolving needs and combine shared insights and tools such as medications and behavioral practices to support them as she guides them on their unique journey toward their best life, on their terms.

Tammi Schrager, LCSW, CCBT, is a bilingual (Spanish-fluent) therapist licensed in Texas and Illinois with over 20 years of experience. She earned her MSW from Loyola University Chicago and her BA in Human Services from Kendall College, receiving the Distinguished Student Award. She completed intensive Spanish language study in Mexico and Costa Rica. Her career spans Alzheimer’s care (Distinguished Service Award), Director of Social Services in skilled nursing, discharge coordination at Schwab Rehabilitation Hospital, police liaison and crisis responder, and community mental health serving diverse and underserved populations.

Tammi provides a safe, confidential, HIPAA-compliant space grounded in cultural humility and respect. She works with individuals, couples, and families facing trauma, PTSD, anxiety, depression, ADHD, ASD, mood disorders, and work or collegiate stress. Her style is collaborative, compassionate, and systems-oriented, integrating CBT, EFT, IFS, attachment work, and ABA. She values measurable progress and uses tools such as PHQ-9 and GAD-7 to guide care.

Tammi begins with a comprehensive assessment of personal, cultural, and environmental factors. She develops individualized, evidence-based treatment plans with clear goals and regular progress reviews. Sessions combine cognitive restructuring with skills training and mind-body techniques such as progressive muscle relaxation and paced breathing to reduce anxiety and trauma responses.

Dr. Katherine Vital-Daley is an adult psychiatrist at Talkiatry. She treats all adults and her passion lies in providing accessible care for women facing challenges throughout pregnancy, childbirth, and postpartum and in reproductive psychiatry. Dr. Vital-Daley's academic background is rooted in science, with an undergraduate degree in biochemistry and molecular biology from the University of California, Merced. She then pursued her medical doctorate at the Medical University of the Americas. Following medical school, she completed her psychiatry residency training. The first two years were spent at East Carolina University, Brody School of Medicine, with a culmination of her last two years of residency at Allegheny Health Network in Pittsburgh, Pennsylvania, to further specialize in women's mental health, which solidified her expertise in this vital area.‍At Allegheny Health Network's Women's Behavioral Health clinic, Dr. Vital-Daley honed her skills in treating a range of conditions, including depression, anxiety, PTSD, OCD, bipolar disorder, and related issues, and served as a medical provider for their intensive perinatal/postpartum outpatient clinic. She also developed a deep understanding of perinatal mental health, supporting patients coping with perinatal loss and traumatic birthing experiences. In her practice, she employs supportive psychotherapy and mindfulness along with evidence-based medication management, utilizing the most current clinical guidelines and treatment modalities. ‍Dr. Vital-Daley's approach is rooted in a collaborative treatment approach. She works closely with patients, exploring past and current stressors and any relevant medical conditions to develop a comprehensive understanding of their individual needs. Recognizing the importance of cultural competency, she incorporates patients' unique backgrounds, beliefs, and core values into her care plans.

Dr. Michael Fiori is Board Certified in Adult Psychiatry and Addiction Medicine. He has practiced general psychiatry for 37 years, and has also sub-specialized in Addiction Psychiatry for the past 20 years. Dr. Fiori's practice emphasizes Diagnostic Clarification, which is an ongoing process. He is highly trained and experienced in the biological and psychosocial underpinnings of psychiatric problems. He typically follows diagnostic evaluations with 30-minute follow up visits for medication adjustments and brief therapy. Dr. Fiori often enjoys collaborating with outside therapists when needed. Dr. Fiori graduated from Amherst College and received his medical degree from NY Medical College. He subsequently completed his residency in psychiatry at the Mount Sinai Medical Center in NYC. He excelled in Academic Psychiatry as both a teacher and a mentor. His practice has always combined medications with evidence-based therapies to alleviate suffering and maximize functioning. In addition to his work as a Board Certified Adult Psychiatrist, he has specialized in helping patients suffering from Substance Use Disorders. Dr. Fiori is Board Certified in Addiction Medicine, and helps patients understand the interrelationships between their Substance Use Disorders and their Psychiatric illnesses.

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.

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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