Michael Underriner, MD

Dr. Karla Garcia is a board-certified psychiatrist trained in Adult Psychiatry. She graduated from the University of Notre Dame with a Bachelor of Science and a Master of Education. She then went on to complete her medical education and residency training at the University of Chicago. She is board certified in Adult Psychiatry by the American Board of Psychiatry and Neurology.

Dr. Garcia believes in patient-centered care, seeking to care for the whole person.  She values the therapeutic relationship, working to guide patients in their treatment while also encouraging patients to take an active role in their care. Dr. Garcia cares about getting to know you as a person and helping you reconnect with your values. Her clinical approach is holistic, collaborative, and supportive.

Dr. Garcia focuses on evidence-based treatments for psychiatric illness that utilize a combination of medications and psychotherapy. Using a range of skills and interventions, Dr. Garcia believes in a multi-faceted approach to treatment.

Dr. Garcia has experience working in a wide variety of inpatient, emergency, partial hospitalization, intensive outpatient, and outpatient psychiatric settings and in treating a broad spectrum of psychiatric disorders including depression, anxiety, bipolar disorder, trauma, substance use disorders, personality disorders, ADHD, and OCD. She treats patients in English and Spanish.

Dr. Zac Keller, DO, DABPN (he/his), is a board-certified psychiatrist with experience across inpatient and outpatient settings. He has held leadership roles including Interim Medical Director and Director at Richard Young Hospital, where he also created and led the hospital’s ECT program. Dr. Keller’s clinical focus includes ADHD, PTSD, and personality disorders, and he brings an integrative lens to psychiatric care.

Dr. Keller takes a collaborative, supportive, and evidence-based approach to treatment. He values confidentiality, culturally sensitive care, and trauma-informed practice. Known for his warm yet direct communication style, he works to create a respectful, nonjudgmental environment where patients feel heard, understood, and actively involved in their care.

Care begins with a comprehensive intake that explores medical, psychiatric, social, and functional aspects of a patient’s life. Session length and frequency are tailored to individual needs. Treatment plans are developed collaboratively and may include medication management combined with talk therapy and other evidence-based interventions. Progress is reviewed regularly and adjusted based on ongoing dialogue.

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. Lauren Broderick is a Harvard trained, board certified psychiatrist. She completed her medical degree at Weill Cornell Medical College of Cornell University. She then completed her adult psychiatry residency training at Massachusetts General Hospital and McLean Hospital, both teaching hospitals at Harvard Medical School. Dr. Broderick has held clinical appointments at Harvard Medical School and Duke University Medical School. At both institutions, she has been recognized for clinical excellence, receiving awards for outstanding patient care and clinical teaching. Dr. Broderick's practice uses a collaborative, evidence-based approach to understand and treat a person's psychiatric symptoms. Her sessions are usually 30 minutes. In addition to focusing on medication management, Dr. Broderick's practice also prioritizes a whole person approach, incorporating aspects of nutrition, lifestyle, mindfulness, and supportive or brief cognitive behavioral therapy into the treatment plan. Occasionally, Dr. Broderick may believe that additional therapy is also needed and ask that you see a separate therapist to provide the best outcome. She has clinical expertise in the treatment of anxiety disorders and mood disorders, specifically focusing on the clinical treatment of young adults going through early life transitions. Dr. Broderick strongly believes in providing high quality, equitable care and empowers her patients to be active players in their treatment plans to facilitate the best care possible.

Anthony Capozzi, MD, is a board-certified psychiatrist with 35 years’ experience in clinical psychiatric practice who has seen patients both in the hospital setting and out-patient care. He is a Diplomate of the American Board of Psychiatry and Neurology as well as the National Board of Physicians and Surgeons and the American Association of Psychiatric Medicine. Originally from Brooklyn, New York and received his MD from New York University after completing a 5th pathway at Booth Memorial Hospital in Queens, New York. He began his experience seeing patients with treatment refractory major psychiatric illnesses at Rockland Psychiatric Center in Rockland County, New York. He served on the psychopharmacology committee at the time. He then went on to practice outpatient psychiatry both at Rockland County Community Mental Health and Westchester County Mental Health for over 20 years in addition to having a private practice while living in New York.  He held the position as Associate Director of the division in Westchester County for over 18 years. He has been exposed to all levels of psychiatric care since it was a mixture of patients in the community as well as patients with limited income and dual diagnoses including substance abuse. His approach is to get to know his patients well in order to provide more comprehensive care. He prefers Cognitive Behavioral therapy or Rational Emotive therapy, which he feels is the most time effective and enduring therapy to help patients needs. He also has extensive experience having worked with patients with developmental disabilities, since this is an underserved need. He then went on to work in Florida both for Florida Health Care Plans, which is an HMO, and in private practice for the past 13 years.  He worked at the Counseling Center of New Smyrna Beach, providing comprehensive care. He then helped establish the Center for Behavioral Medicine in Port Orange, Florida, which provided care as part of a multidisciplinary practice. He then went on to establish Advanced TMS in Port Orange, Florida. He is interested in treatment-resistant Depression and Anxiety Disorders. He went on to work for Greenbrook TMS in the greater Orlando area practicing Interventional Psychiatry. He is certified in TMS for brain mapping with Neurostar and Cloud TMS and has experience in the use of intranasal ketamine for treatment resistant depression. He has been a member of the Neuroscience Education Institute since 2012, where he holds a certificate as a Master Psychopharmacologist and a member of the Clinical TMS Society. He has active medical licenses in Florida, Arizona and New York. He is also certified in Medical Marijuana and has completed the IV Ketamine Infusion therapy course as well as Botox training certification.

Patients working with Dr. Capozzi know that he is easy to engage with and is most interested in his patients overcoming their obstacles to reach their optimal level of functioning. He enjoys working with patients who have anxiety, mood disorders and ADHD. It is very gratifying watching patient’s blossom and overcome their psychiatric disorder and then function at their best in work, leisure pursuits and relationships. Patients working with Dr. Capozzi should know that he realizes they have been suffering with their symptoms for some time or they would not be seeking help, and he will work with the patient in collaboration to help receive the proper care.

The typical process in working with patients is to first spend time gathering a history of the symptoms. It is then important to also include significant medical history which may be primary or secondary contributing factors. Also, it is important to look at psychosocial profile and how that may contribute to the initiation of the symptoms and prevention of improvement. It is essential to form a differential diagnosis and continue to look at any ongoing issues as well as co-morbidities. He believes it is most important to discuss possible treatment modalities and take into consideration the patient’s participation in ongoing care. It is most essential to be up to date on the latest modalities in treatment and use a combination of medication, nutritional supplements and behavioral therapies that can foster lasting improvement.

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Dr. Sara Mateo holds the position of staff Psychiatrist at Talkiatry. She is a board-eligible adult Psychiatrist. Dr. Mateo completed her Medical degree at the University of Benghazi- Faculty of Medicine and finished General Psychiatry Residency training at Tower Health/DrexelPhoenixville Hospital. Throughout her career, Dr. Mateo has actively contributed to various leadership roles and committees, demonstrating her commitment to advancing medical education and promoting diversity in the field. During her training, she generously shared her knowledge through educational presentations and lectures, fostering the growth of fellow trainees and medical students. Dr. Mateo is dedicated to creating a therapeutic environment characterized by warmth, empathy, and nonjudgmental support. Her approach involves collaborating with patients to develop individualized treatment plans that consider cultural, biological, psychological, and social factors. With a primary focus on medication management, Dr. Mateo's keen interest in psychotherapy is evident, as she often integrates supportive therapy, cognitive behavioral therapy, and psychodynamic psychotherapy during 30-minute follow-up visits to optimize wellness and recovery. Dr. Mateo brings a wealth of experience in caring for individuals of diverse ages and backgrounds, adeptly addressing a wide spectrum of conditions. Her expertise extends to treating depressive disorders, bipolar disorders, anxiety disorders, trauma and stress related disorders, ADHD, OCD, Insomnia, psychotic disorders; she also has experience treating individuals with medical comorbidities.