Alejandra Cattan, 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. Kethini is a board-certified psychiatrist in General psychiatry. She completed her medical degree at St. George's University School of Medicine in Grenada. After completing her residency at Bergen New Bridge Medical Center, she transitioned to an attending psychiatrist at the same place where she completed her residency. During her initial years as an attending, she took care of her own patients and supervised third year residents in the outpatient setting. After a few years, she transitioned to an inpatient setting, where she treated both voluntary and involuntary patients. She also continued to evaluate patients in the emergency room as part of the call group for the last 8 years. ‍Dr. Kethini is passionate about and very experienced in providing a holistic approach along with evidence-based care for patients battling depression, anxiety, bipolar disorder, OCD, ADHD, and PTSD. She integrates supportive psychotherapy along with medication management and lifestyle changes such as nutrition, exercise, sleep hygiene, and stress management. She is focused on having a collaborative approach to treatment and forming a therapeutic alliance with every single patient under her care.

Dr. Amada holds the position of staff psychiatrist at Talkiatry. She was born and raised in Queens, NY. She completed her undergraduate education at New York University, followed by medical school at SUNY Downstate College of Medicine in Brooklyn, NY. She went on to complete her psychiatry residency at Stony Brook University Hospital, where she received an award for academic achievement. Dr. Amada believes in a holistic approach to mental health that addresses lifestyle factors alongside medication management. She values the importance of both therapy and medication in treating mental illness.

Dr. Amada takes a collaborative approach to care and strives to involve her patients in every step of the treatment process. She believes in creating a safe, supportive, and nonjudgmental space where patients can openly discuss their concerns. While her focus is on medication management, she often recommends incorporating additional therapy into the treatment plan and may ask that patients work with a therapist to help achieve the best outcomes.

Dr. Amada works closely with her patients to develop personalized treatment plans. She believes in open communication, shared decision-making, and taking into account the whole person when addressing mental health concerns. Her goal is to ensure that patients feel heard, supported, and actively engaged in their care.

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Dr. Stephanie Negrey is a board certified psychiatrist. She completed her undergraduate degree in Biology and History at Fordham University in the Bronx and then attended medical school at the Renaissance School of Medicine at Stony Brook University. She completed her residency at Wright State University in Dayton, Ohio as a member of the United States Air Force. Dr. Negrey served as an active duty psychiatrist; her duties included medical director of the mental health clinic at a special operations base as well as a program manager for the Air Force substance use program.

Dr. Negrey has experience treating a wide range of ages and diagnoses, with particular emphasis on personality disorders, depression, anxiety, and post traumatic stress disorder. She integrates supportive and psychodynamic therapies into her medication management appointments with a goal of achieving improvement through a holistic approach. Dr. Negrey will work with patients to reach their goals for their mental health care while also providing a compassionate and collaborative environment.

Dr. Goicochea is Peruvian and speaks Spanish fluently. She is a "triple Gator” having completed her undergraduate and medical degree at the University of Florida (UF) and psychiatric training at UF Jacksonville. She was recognized by the Gold Humanism Honor Society for exemplary service, integrity, clinical excellence, and compassion and awarded Resident of the Year for exceptional clinical skills and commitment to patients. Dr. Goicochea is a board-certified adult psychiatrist who specializes in providing person-centered mental health care. She believes in a comprehensive, holistic approach to best improve the overall well-being of her patients; she explores psychosocial and physical health contributions to psychiatric symptoms and incorporates therapy into visits to develop a deeper understanding of the particular psychiatric concerns and their impact on patients' lives. Dr. Goicochea actively listens and creates an empathetic, non-judgmental space to work collaboratively with patients in achieving treatment goals. Dr. Goicochea's expertise is in the combination of evidence-based medication management with psychotherapy, which includes supportive, person-centered, cognitive behavioral, acceptance and commitment, interpersonal, and solution-focused therapy. While she enjoys working with young adults, her skills and experience allow her to effectively assist patients of all ages. Her clinical areas of interest include the treatment of depression, bipolar disorder, anxiety, and ADHD.

Dr. Corey Greenwald is a board-certified psychiatrist with years of experience treating patients in both acute inpatient psychiatric emergencies and outpatient medication and psychotherapy settings. He earned his medical degree from Brown University, completed his internship in the Columbia system, and pursued residency training at Mount Sinai Medical Center in New York City. Dr. Greenwald has practiced in academic, urban, suburban, and rural environments, which has given him broad perspective and adaptability in caring for diverse patient populations.

Dr. Greenwald emphasizes psychoeducation as a core part of care, ensuring patients are active participants in understanding and managing their mental health. He brings a deep interest in transcultural issues and in how social media and news cycles impact emotional well-being. Having witnessed the effects of mental illness within his own family, Dr. Greenwald approaches his work with empathy, insight, and a strong commitment to helping patients feel supported throughout their journey.

Dr. Greenwald works collaboratively with patients to define or clarify concrete treatment goals by the end of the initial appointment. He maintains a low threshold for revisiting and adjusting treatment plans if progress feels unsatisfactory, ensuring care remains flexible and effective. His informal, eclectic interpersonal style allows him to tailor his approach to each individual, fostering trust and partnership in the therapeutic process.