Michael Underriner, MD

Dr. Alejandra Vivas is board-certified in adult psychiatry and board-eligible in child and adolescent psychiatry. She completed her general psychiatry residency at Montefiore Medical Center and a child and adolescent fellowship at Mount Sinai School of Medicine. Dr. Vivas brings extensive experience from outpatient, emergency, and telepsychiatry settings. She has advanced training in CBT, Motivational Interviewing, and Psychodynamic Therapy. Fluent in English and Spanish, she is committed to culturally sensitive, individualized care.

Dr. Vivas fosters a warm, respectful, and professional space where patients feel seen and empowered. She values open communication and builds collaborative relationships to align treatment with each person’s values, goals, and lifestyle. Her approach is integrative and flexible, grounded in evidence-based methods to support lasting, meaningful change.

Dr. Vivas begins with a thorough evaluation to understand each patient’s history and goals. She creates customized treatment plans that may include therapy, medication, or both. Drawing on CBT, Motivational Interviewing, and Psychodynamic Therapy, she adapts care to meet evolving needs, aiming to relieve symptoms, foster resilience, and support long-term well-being.

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Dr. Jane Eisen comes to Talkiatry from her previous position at McLean Hospital, in Boston, where she was Clinical Director of the Depression and Anxiety Division, overseeing the integration of clinical work, faculty development, and research in the division. Clinically, she has experience working with people with significant mood and anxiety difficulties. Dr. Eisen's practice focuses on using an integrated approach to the understanding and treatment of individuals' psychosocial stresses and psychiatric symptoms. Her sessions are usually 30 minutes. She frequently suggests including a family member or friend in at least one session to get a comprehensive sense of each person's strengths and challenges. She received her medical degree from NYU and completed her psychiatric residency at Mt. Sinai Hospital. She spent a number of years in the Brown system, as Training Director for the Brown Psychiatry Residency and as Vice-Chair of the Brown Department of Psychiatry. For several years, she served as Chair of the Department of Psychiatry at Mt. Sinai West/St. Lukes' prior to her position at McLean, as Clinical Director of the McLean Hospital Depression and Anxiety Division. She has worked primarily with outpatients with the exception of a recent period of residential work at the Pavilion at McLean Hospital. Dr. Eisen is a general psychiatrist with a focus on anxiety disorders, OCD, and mood disorders. She is interested in the impact of trauma and personality and has extensive experience working with young adults.

Dr. Fisher is a psychiatrist with over 20 years of experience in adult psychiatry, military health, addiction medicine, business leadership, and executive consultation.  His background has given him the opportunity to work with a diverse range of individuals, and he brings that breadth of experience to every patient relationship. In addition to his medical training, Dr. Fisher completed advanced training in psychodynamic and person-centered psychotherapy, which helps him provide care that’s not only evidence-based, but also deeply respectful of each person’s unique story.

Patients often describe Dr. Fisher as easygoing, kind, and patient. He takes pride in being someone who truly listens. he strives to create a safe, nonjudgmental space where you can be yourself—no matter where you're starting from. His goal is to meet you where you are, both emotionally and practically, and help you move toward where you want to be.

Dr. Fisher's approach is collaborative and flexible. He begins by getting to know you—your history, your concerns, and your goals. From there, we work together to create a treatment plan that may include therapy, medication, or both, depending on what’s appropriate for your needs. He integrate both psychodynamic insight and person-centered techniques, always with an emphasis on mutual respect and open communication. Progress takes time, and he's here to support you every step of the way.

Dr. Elena Perea is a board-certified psychiatrist.  She completed her undergraduate training at Wake Forest University followed by medical school and residency training at The University of North Carolina at Chapel Hill (UNC).

Dr. Perea holds an adjunct academic appointment at UNC and has been involved in medical education for her entire career.  She most recently served as Residency Program Director for the Mountain Area Health Education Center (MAHEC) psychiatry residency in Asheville, NC.  She remains involved in didactic education there for both residents and medical students.

She has a genuine interest in treating a vast array of psychiatric disorders including depression, anxiety, bipolar disorders, post-traumatic stress disorders and obsessive compulsive and related disorders. She is a skilled psychopharmacologist and interested in the mind-body connection. She believes physical health greatly affects mental health and vice versa and loves helping patients with medical comorbidities to feel well.

Patients looking for a psychiatrist will find that Dr. Perea has a comprehensive approach to diagnosis and management of her patients. She believes in the principle that body and mind are interconnected and utilizes psychoeducation and psychotherapeutic approaches in addition to medications for total wellness.

Dr.Gusta Shurdut is a board-certified adult psychiatrist with 8 year experience. She completed her medical training at SUNY Downstate Medical center in Brooklyn, and psychiatric residency at Mount Sinai Beth Israel, NYC. After her residency, she worked as an assistant professor at Mount Sinai Psychiatric Ambulatory Services. Dr.Shurdut graduated magna cum laude from Columbia University with an undergraduate degree in biology. Prior to moving to New York, she obtained a degree in communications and public relations and worked as a journalist at her hometown in Latvia.

Dr.Shurdut believes in individual, empathetic, and collaborative treatment approach. Through her residency and work experiences, Dr.Shurdut has developed expertise to treat various mental health conditions including mood disorders, anxiety, OCD, ADHD, PTSD. While her primary focus is medication management, she also incorporates CBT, psychodynamic and supportive psychotherapy.

Dr.Shurdut’s goal is empowering patients to participate in their healthcare choices. As a psychiatrist, she feels honored to witness the complexity of the human experience, and curious to explore the factors that contribute to it.  On intake appointment, she will take time to understand your concern, provide assessment, discuss treatment options and collaboratively decide on most appropriate action. The follow up appointments are usually 30 minutes and include a psychotherapy modality.

Dr. Ritchie is trained in both adult and child & adolescent psychiatry, with a focus on the diagnosis and treatment of depressive disorders, anxiety disorders, trauma- and stressor-related disorders, and ADHD.  He received his bachelor's degree in biology with a minor in French, from The University of Central Florida. Dr. Ritchie completed medical school at Campbell University School of Osteopathic Medicine. Following medical school, he completed General psychiatry residency and Child and Adolescent Psychiatry Fellowship at Texas Tech University Health Sciences Center. His professional experiences include working in inpatient psychiatric hospitals, consult-liaison psychiatry, outpatient clinics, intensive outpatient programs (IOP), partial hospitalization programs (PHP), and emergency rooms. This broad range of experience allows him to provide comprehensive, individualized care to patients at all stages of life.

Dr. Ritchie emphasizes a holistic approach, combining medication management and psychotherapy. He utilizes principles from Cognitive Behavioral Therapy (CBT), Acceptance and Commitment Therapy (ACT), and supportive psychotherapy This method is supported by research indicating improved patient outcomes.

Patients can anticipate a thorough initial evaluation during their first visit with Dr. Ritchie. He conducts a comprehensive assessment to understand the patient's symptoms, history, and personal circumstances. This session sets the foundation for collaboratively developing an individualized treatment plan focused on the patient's specific needs and goals.

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