Patricia Michel-Garrison, DO

Dr. Kasey Broom earned her medical degree from the University of South Carolina School of Medicine Greenville and completed general psychiatry residency and an addiction psychiatry fellowship at the Medical University of South Carolina in Charleston. She holds undergraduate and master’s degrees in biomedical engineering. Dr. Broom has experience in telepsychiatry, inpatient, outpatient, and interventional psychiatry settings, with expertise in treating mood, anxiety, trauma-related, attention, and substance use disorders, as well as women’s behavioral health and veteran populations.

Dr. Broom believes it’s a privilege to be part of her patients’ healing journey. She fosters authentic, therapeutic relationships in a supportive, judgment-free space that encourages open, honest communication. Her collaborative style integrates motivational interviewing, supportive psychotherapy, and cognitive behavioral strategies, all while providing evidence-based, patient-centered care that may include medication, therapy, and lifestyle changes.

In the initial session, Dr. Broom focuses on understanding each patient’s history, concerns, and personal goals. She creates individualized treatment plans that align with those goals and emphasizes education to help patients better understand their diagnoses. Through this approach, she empowers individuals to actively participate in their care and take meaningful steps toward recovery.

Dr. Kira Posteraro is double board-certified in Adult and Addiction Psychiatry and has over 10 years of clinical experience. She completed her General Adult Psychiatry Residency at Allegheny General Hospital in Pittsburgh, PA, followed by a fellowship in Addiction Psychiatry at Beth Israel Medical Center in New York, NY.

Dr. Posteraro’s career has included serving as Director of Psychiatric Services at an addiction treatment center in Pittsburgh, PA, where she provided care across the full continuum of substance use disorder treatment—including residential, acute PHP, IOP, outpatient, and aftercare services. She later held the role of Section Chief Psychiatrist for the Center for Treatment of Addictive Disorders at VA Pittsburgh Healthcare System, offering both residential and outpatient services and acting as Medical Director for the SAMHSA-certified Opioid Treatment Program. Most recently, she served as Chief of Psychiatry for the Behavioral Health Service Line at VA Pittsburgh, where she had the honor of caring for our nation’s Veterans.

While her clinical expertise centers on the diagnosis and treatment of substance use disorders, Dr. Posteraro also has extensive experience treating a wide range of psychiatric conditions, including depressive and bipolar spectrum disorders, anxiety disorders, and trauma-related disorders.

Dr. Posteraro uses a collaborative, supportive approach to care, incorporating motivational interviewing to help guide patients on their journey to wellness. She integrates holistic strategies alongside medication management and is dedicated to meeting patients where they are in treatment to build individualized, effective recovery plans.

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Dr. Parrish is a board-certified General Psychiatrist and board-certified Child and Adolescent Psychiatrist. In addition to medication management, Dr. Parrish also provides supportive therapy and cognitive behavioral therapy techniques during appointments. When appropriate, she will refer patients for additional psychotherapy and will work to collaborate with therapists to help patients achieve the best outcomes. She received her medical degree from the Medical College of Virginia/VCU in Richmond, Virginia. She then traveled to Greenville, South Carolina where she completed a General Psychiatry residency at Greenville Health System/PRISMA Health and then returned to Virginia to complete a Child & Adolescent Psychiatry fellowship at The Virginia Treatment Center for Children/VCU Health System. Dr. Parrish is a strong advocate of an integrated approach to treating children and their families. She completed undergraduate training at Randolph-Macon College in Ashland, Virginia, where she studied psychology and elementary education. Prior to entering medical school, she was a licensed elementary school teacher in Virginia where she served children of various learning styles and needs. She continues to have an interest in learning disabilities, other neurodevelopmental disorders, ADHD, mood disorders, as well as many other areas of psychiatry.‍

Dr. Michael Miller earned his medical degree with honors and completed his residency in Adult Psychiatry at the University of Kentucky College of Medicine. He has worked across a wide range of clinical settings, including inpatient, outpatient, community clinics, and state hospitals. Dr. Miller is also trained in multiple psychotherapy modalities, equipping him to meet diverse patient needs.

Dr. Miller values creating a safe and nonjudgmental space where patients can speak openly about their experiences and goals. He believes in a collaborative approach, working with patients to discover strategies that best suit their lives. He also takes into account lifestyle factors that may influence mental health, supporting a well-rounded and sustainable path to wellness.

Dr. Miller begins care with a comprehensive conversation about current concerns, past mental health, physical health, and life experiences. From there, he works with patients to create a personalized treatment plan—whether through therapy, medication, lifestyle adjustments, or a combination. Follow-ups focus on refining the plan to ensure it continues to support the patient’s journey.

Dr. Tammara Davis is a board-certified adult psychiatrist with over 15 years of experience treating patients across inpatient, outpatient, emergency, and telepsychiatry settings. She earned her medical degree from the University of Tennessee Health Science Center, completed her psychiatry residency at St. Elizabeths Hospital in Washington, DC, and holds a B.S. from Xavier University of Louisiana.

Dr. Davis previously served as a Primary Care–Mental Health Integration psychiatrist at the Veterans Health Administration, where she helped expand access to care in community-based clinics. She is an active member of the Black Psychiatrists of America, where she advances advocacy and equity in mental health care. While she has treated a wide variety of patients from all walks of life, her clinical focus has been on improving access to quality mental healthcare for historically marginalized communities.

Dr. Davis specializes in mood and anxiety disorders, including depression, PTSD, and perinatal mental health. Her approach is holistic, integrative, and patient-centered—grounded in cultural humility and collaborative care. She does not prescribe benzodiazepines, focusing instead on evidence-based strategies that support long-term wellness. While treating a wide variety of patients, Dr. Davis’ clinical focus has been on adults from marginalized and/or minoritized communities.

Dr. Davis begins care with a consultation to ensure a strong fit and shared treatment goals. Dr. Davis is committed to creating a safe, trusting space where patients feel empowered and in control of their healing. She recognizes that not all patients require medication and integrates culturally affirming support when therapy and education are more appropriate.

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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.