Jonathan Hertz, MD

Dr. Danielle Jackson is a board certified Adult Psychiatrist by the American Board of Psychiatry and Neurology. She is a graduate of Yale University's Psychiatry Residency and Howard University College of Medicine. Dr. Jackson's practice focuses on a combination of psychopharmacology (medication) and psychotherapy techniques including supportive therapy, motivational interviewing and cognitive behavioral therapy. She approaches care from an individualized, patient-centered, collaborative perspective. She often integrates evidence-based lifestyle recommendations in areas such as nutrition, sleep hygiene, exercise, and stress management tools in treatment to help patients achieve their wellness goals. Her interests include adjustment disorder, mood disorders, anxiety disorders, ADHD and trauma-related disorders. In addition, she enjoys helping patients navigate the challenges that can accompany changes in life (careers, parenthood, relationships, chronic illness). Prior to joining Talkiatry, Dr. Jackson served as medical director for substance use and co-occurring disorders at Sunset Terrace Family Health Centers at NYU Langone. She has experience caring for a diverse patient population including those with perinatal mood disorders (postpartum anxiety/depression), substance use disorders and those from minoritized and marginalized communities.

Dr. Earl De Guzman is a psychiatrist who values therapeutic partnership, working with patients to balance symptom relief with meaningful self-exploration. He earned his BS in Psychology from the University of California, Davis, and his MD from Ross University School of Medicine. He completed his psychiatry residency at Los Angeles County + University of Southern California Medical Center and a consultation-liaison psychiatry fellowship at Stanford University Medical Center. He is triple-board-certified in psychiatry, consultation-liaison psychiatry, and addiction medicine, and holds psychoanalytic psychotherapy training certification from the Psychoanalytic Center of California. Currently, he is a psychoanalyst-in-training at the New Center for Psychoanalysis. His expertise spans medication management, supportive therapy, and psychodynamic therapy.

Dr. De Guzman takes a collaborative, patient-centered approach, creating a warm and nonjudgmental environment. He listens deeply, asks thoughtful questions, and encourages honest exploration of symptoms and underlying patterns. He values authenticity, curiosity, and respect for each patient’s unique experiences. While symptom relief is important, his goal is to foster self-understanding and long-term growth. He works best with patients open to collaboration and motivated for change, whether through medication management, therapy, or both.

Dr. De Guzman begins with a consultation phase to ensure a good fit, listening carefully to understand each patient’s challenges and goals. Together, he and his patients build a working alliance by clarifying difficulties, identifying realistic changes, and exploring deeper patterns. When appropriate, he prescribes medication thoughtfully, aiming to support therapy rather than replace it. Each session integrates supportive and psychodynamic elements, combining medication review with therapeutic dialogue. Treatment plans are regularly revisited, allowing flexibility and growth, with the ultimate aim of empowering patients toward lasting change.

Dr. Lemaire Leo Pierre is a board certified adult psychiatric provider with over 10 years of experience. He has additional years working in the medical field as a physician assistant. Dr. Pierre's practice entails medication management accompanied by supportive psychotherapy. He frequently encourages other forms of psychotherapy with a counselor to maximize treatment outcomes. After completing medical school at Central America Health Science University, he returned to New York City and completed his psychiatry residency at New York Medical College Program at Metropolitan Hospital Center. Subsequently, he moved to Minnesota and worked with Park Nicollet Health Service/HealthPartners. He had been there for 10.5 years, where he oversaw a successful psychiatric practice and helped his patients who had been struggling with their conditions. Dr. Pierre is a member of the American Board of Psychiatry and Neurology, in addition to the American Psychiatry Association and State Psychiatry Association. He also enjoys attending conferences and reading journals to learn about cutting-edge treatments so that he is updated on the most recent FDA-approved medications.

Dr. Swetha Mummini earned her medical degree from SUNY Downstate Medical Center and completed her psychiatry residency at the University of Maryland/Sheppard Pratt. She has worked across various clinical settings, including inpatient units, residential treatment centers, and substance use disorder clinics. Her clinical interests include mood disorders, OCD, women’s mental health, and eating disorders.

Dr. Mummini takes a holistic approach to mental health, recognizing that there is no one-size-fits-all solution. She thoughtfully integrates medication when appropriate, alongside lifestyle changes, sleep, and stress management. She prioritizes strong therapeutic relationships and uses 30-minute follow-up visits that often include elements of psychotherapy.

In the first appointment, Dr. Mummini gathers a thorough psychiatric history, explores current symptoms, and learns about the patient’s goals. She works collaboratively to develop personalized, evidence-based treatment plans, blending integrative psychiatry with ongoing support for long-term well-being.

Dr. Boski Patel holds the position of psychiatrist at Talkiatry. She is double board-certified in geriatric and adult psychiatry and she has been practicing for over 3 years. Dr. Patel's practice focuses on medication management and she typically in conjunction with supportive therapy in 30-minute follow-up visits. On occasion, Dr. Patel may believe that additional therapy is also needed and asks that you bring a therapist into your care team to provide the best outcome. She received her undergraduate degree from the University of Pittsburgh, and then went on to receive her medical degree from Penn State University. Following medical school, she completed general psychiatry residency training at the University of Connecticut where she was Chief resident of outpatient psychiatric services. During that time, she was also chosen as an Honors scholar by the American Association of Geriatric Psychiatry. After training, she moved to California to do her geriatric psychiatry fellowship at Stanford. Following her fellowship, she worked at Kaiser Permanente in clinical roles of outpatient, geriatric, and C/L.

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.