Richard McColl, MD

Dr. Bryce Toburen is a board-certified psychiatrist dedicated to compassionate, collaborative care across the lifespan. His training includes an MD from the Medical College of Wisconsin, residency at The Ohio State University where he served as Chief Resident, and a fellowship in Child & Adolescent Psychiatry at Nationwide Children's Hospital. Outside the clinic, he enjoys sports, tennis, exploring nature, traveling, and spending time with loved ones.

Each patient brings a unique story, and he strives to create a safe, respectful space where you feel heard and supported. His interest in psychiatry stems from a desire to maximize the well-being of patients and their families through strong therapeutic relationships. Compassion and curiosity guide his work, along with a strong belief in the power of connection and collaboration. You can expect open communication and a focus on your personal goals throughout your time together.

Treatment is personalized using evidence-based approaches that include psychotherapy, medication management, and lifestyle strategies. He specializes in addressing anxiety, depression, ADHD, OCD, and trauma-related concerns. Collaboration and trust are central to his approach, with an emphasis on empowering patients to take an active role in their healing and well-being.

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Dr. Lisa Oliveri is a double board-certified psychiatrist in Psychiatry and Forensic Psychiatry. She completed her undergraduate training at the University of Florida, followed by medical school at the Charles E. Schmidt College of Medicine at Florida Atlantic University. She completed both her residency in Psychiatry and fellowship in Forensic Psychiatry at the University of Miami/Jackson Memorial Hospital. Since graduating from fellowship, Dr. Oliveri has held an academic appointment at the University of Miami, teaching medical students, residents, and fellows, and serving as the Miami Veterans Healthcare System Site Director for the University of Miami Psychiatry residency and fellowship programs. Additionally, she has served as the Medical Director of the inpatient psychiatry unit and subsequently as the Assistant Chief of Psychiatry for the Miami VA Healthcare System. Dr. Oliveri has a strong interest in treating a broad range of psychiatric disorders, including depression, anxiety, posttraumatic stress disorder, and substance use disorders. She has extensive experience in treating adults with severe psychiatric illnesses in the inpatient setting. Patients looking for a psychiatrist will find that Dr. Oliveri is approachable, open-minded, and collaborative in her diagnostic interviews and treatment planning. She believes that a strong doctor-patient relationship with a thorough understanding of a patient's condition and concerns is key to effective treatment.

Dr. Pressley Warrick is a double board-certified psychiatrist specializing in general psychiatry and child and adolescent psychiatry. Dr. Warrick currently practices full-time, offering comprehensive psychiatric care to children, adolescents, and adults. She previously established and led a Behavioral Health Clinic integrated within a Family Medicine Practice. Prior to this role, Dr. Warrick provided dedicated psychiatric care at a private psychiatry practice for over a decade.

Dr. Warrick earned her medical degree from the Medical University of South Carolina, completed residency training at Baylor College of Medicine's Menninger Department of Psychiatry and Behavioral Sciences, and pursued additional specialization through a Child and Adolescent Psychiatry fellowship at Palmetto Health/USC School of Medicine.

Known for a collaborative and holistic treatment approach, Dr. Warrick emphasizes individualized care and evidence-based practices to support patients’ mental wellness. Her professional excellence has earned recognition as Sumter’s Best Psychiatrist for consecutive years.

Dr. Warrick’s preferred treatment modalities include medication management, psychodynamic psychotherapy, and supportive psychotherapy. She specializes in treating depression, anxiety, ADHD, autism, OCD, bipolar disorder, and PTSD. Her typical approach for new patients involves taking a detailed patient history, establishing rapport, and setting clear treatment goals in partnership with her patients.

Dr. Maxwell Schauermann is a board-certified addiction psychiatrist. He completed his medical school and residency training at Loma Linda University in sunny Southern California. He was recognized by his colleagues as Chief Resident of inpatient services for his leadership and problem-solving abilities. His passion for caring for people with substance use disorders led him to complete specialized training in Addiction Psychiatry at the University of Washington in 2024. Dr. Schauermann is known for his patient-centric approach and nonjudgmental, easy-going attitude. He typically offers 60-minute new visits and 30-minute follow-up visits. He excels in treating both psychiatric and addiction disorders, utilizing a broad array of therapeutic modalities, including psychiatric medications, supportive therapy, cognitive-behavioral therapy, dialectical behavior therapy, psychodynamic-based therapy, prolonged exposure therapy, and motivational enhancement therapy. His treatment philosophy centers on empowering patients to heal holistically�body, mind, spirit, and relationships�ensuring each individual receives tailored and evidence-based care.

Dr. Caitlin Gardiner is a board-certified psychiatrist specializing in child and adolescent psychiatry and psychotherapy. Dr. Caitlin Gardiner's practice is based on the biopsychosocial model and believes that the foundation of healing is in psychotherapy and human connection. She is known for incorporating therapy into her medication management practice. Typically she offers 30-minute follow-up visits for medication management with focused therapy based on individual needs. As a known helper, Dr. Gardiner started her career with a bachelor's degree in social work from Cazenovia College in Cazenovia, NY. After changing career paths, she received her medical degree from SUNY Upstate Medical University in Syracuse, NY. She stayed upstate to complete her general psychiatry residency, where she was chief resident at the beginning of the COVID-19 pandemic. Following this, she completed her child and adolescent psychiatry fellowship at Upstate due to the high quality of training. Dr. Gardiner has completed 3 years of advanced training in Dynamic Deconstructive Psychotherapy as well as specialized training in DBT. Dr. Gardiner is a well-rounded psychiatrist who enjoys treating youth and young adults during transitional phases of life while providing a safe and supportive environment. She believes strongly in reducing polypharmacy and providing high-quality medication management through a therapeutic and developmental lens.

Dr. Erlach is a board certified adult psychiatrist who has previously worked for the United States Air Force and the Department of Veterans Affairs. He attended medical school at the Uniformed Services University of Health Sciences, graduating in 2009, followed by active duty military service in the United States Air Force until 2024. He completed residency training at the combined military-civilian Wright State University/Wright Patterson AFB training program in Dayton, Ohio.

Dr. Erlach enjoys working with all types of patients. He takes a collaborative approach to patient care and develops a treatment plan alongside the patient so that both are fully invested in the plan. He generally has weekend and evening appointments only.

Dr. Erlach incorporates therapy into medication management appointments. Dr. Erlach feels that addressing psychosocial stressors and developing coping mechanisms are a vital component to treatment.

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