Rita Shaughnessy, MD

Meredith McMillan is a Licensed Mental Health Therapist with 9 years of experience working in mental health. She specializes in working with individuals who experienced trauma and toxic stress, as well as those with addiction issues, relationship challenges, and adjustment disorders. Ms. McMillan's therapy practice focuses on providing person-centered encouragement and support. She utilizes a trauma-focused cognitive behavioral approach to help you to develop your understanding of yourself and your challenges and enable you to utilize your strengths to facilitate your healing. She received a Master's Degree in Counseling Psychology from Palm Beach Atlantic University in Orlando, Florida, and established herself as a therapist working in community mental health in the Lakeland, Florida area. She spent several years working at Tri-County Human Services providing co-occurring outpatient substance abuse therapy. Later, she shifted to providing services to children through Tri-County's B-Net program and Children's Home Society. She went on to become the Clinical Supervisor at the Children's Home Society providing care to children and adolescents impacted by trauma and the child welfare system. Before joining Talkiatry, she also served as the clinical supervisor and therapist at The Mary Welsh Foundation, providing care to individuals of all ages and specializing in trauma and family issues. Ms. McMillan has worked with individuals dealing with a variety of mental health issues throughout her years of experience as a therapist. She has worked with people of all ages and has experience working with families and couples. She has had additional training to serve individuals dealing with addictions and with processing trauma. She has had extensive experience working with individuals dealing with mood disorders and anxiety, as well as relationship and parenting issues.

Dr. Ariela Karasov completed her psychiatry residency at Stanford, serving as Chief Resident in her final year, and pursued a fellowship in Neuropsychiatry at Stanford Hospital. She is board certified in Behavioral Neurology and Neuropsychiatry and has worked as a National Expert in bipolar disorder at the VA. She has experience treating Generalized Anxiety Disorder, Obsessive-Compulsive Disorder, Bipolar Disorder, PTSD, and Depression, as well as patients with comorbid neurologic and mental health conditions. Dr. Karasov has also taught residents as adjunct clinical faculty at the University of Wisconsin Hospital and Clinics.

Dr. Karasov takes a collaborative approach, actively engaging patients in treatment planning and decision-making. She incorporates therapy into her practice, emphasizing each individual’s values and what gives their life meaning and purpose. Patients can expect a thoughtful, empathetic, and patient-centered environment where their goals and experiences are prioritized.

She values a thorough evaluation to understand how medical, psychological, and social factors contribute to a patient’s presentation. When appropriate, she invites family members or friends to provide collateral information to ensure a complete understanding, guiding a tailored and effective treatment plan.

Dr. Michael Gravenstein earned his medical degree from the University of Florida College of Medicine, where he also completed his psychiatry residency. During training, he was recognized with multiple awards, including the Malcom Randall VA Resident of the Year Award, the Ross A. McElroy Psychotherapy Award, and the John “J.D.” Dorian Award for best sense of humor. He has worked across outpatient, inpatient, and consult liaison settings, and has experience treating a wide range of conditions including depression, anxiety, ADHD, OCD, personality disorders, and transitional age concerns. He also has expertise working with LGBTQIA+ patients and provides psychodynamic, CBT, and supportive therapies.

Dr. Gravenstein believes in a comprehensive approach to treatment that integrates medications, therapy, and lifestyle interventions. While medications can be very effective, he views them as just one part of a broader treatment plan tailored to each patient’s needs. He emphasizes individualized care and sees treatment as a team effort, meeting patients where they are and progressing at a pace they feel ready for.

Dr. Gravenstein strives to create a warm, collaborative environment that fosters open communication and genuine connection. He may challenge patients therapeutically but always with careful attention to their readiness and comfort. His goal is to build trust so that meaningful conversations and progress can occur. For him, success is always shared—when patients succeed, they succeed together; when challenges arise, they regroup and move forward together.

Bethanie is a board-certified Mental Health Nurse Practitioner who earned her Psychiatric Mental Health Nursing credentials and a Master’s in Psychiatric and Mental Health Nursing from Columbia University School of Nursing, where she was inducted into the Sigma Theta Tau Nursing Honor Society. She has been in practice for over 10 years, providing care to individuals with anxiety, depression, bipolar disorder, and schizophrenia. Bethanie also has a strong passion for supporting women’s mental health during the perinatal phase of life.

She believes in a collaborative partnership with her clients, working together to develop a mutually agreed-upon plan of action that maximizes the chances of success.

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Dr. Michael A. Murphy is board-certified in General Psychiatry as well as Child and Adolescent Psychiatry by the American Board of Psychiatry and Neurology. He has over 20 years of experience practicing medicine in outpatient, acute, and residential settings. He provides psychiatric assessments and medication management along with brief supportive psychotherapy. He is a strong advocate of collaboration between psychiatric care and psychotherapeutic interventions and encourages the utilization of therapists and counselors. Dr. Murphy holds a bachelor's degree in Chemistry Pre-med from Florida A & M University and a Medical Degree from the University of Florida College of Medicine. He completed both his residency in General Psychiatry and Fellowship in Child and Adolescent Psychiatry at the University of Virginia. He formally served as Chief of Behavioral Health Services at Ft. Eustis, Virginia. He has previously provided acute care and residential treatment at Newport News Behavioral Health Center, outpatient services in the community, and the foster care system. He has recently served as medical director of Harbor Point Behavioral Health Center. Dr. Murphy has an extensive history of providing care for both the adult and child population. He specializes in the treatment of children with Mood Disorders, Anxiety Disorders, ADHD, and Pervasive Developmental Disorders.

Dr. Tiffany Chu earned her medical degree from the University of Southern California and completed her psychiatry residency at the Medical Center of Aurora. She has experience treating a wide range of psychiatric conditions, including depression, anxiety, ADHD, obsessive-compulsive disorder, panic disorder, and post-traumatic stress disorder.

Dr. Chu takes a holistic approach to psychiatry, aiming to promote long-term wellness and address root causes. Along with medication and psychotherapy, she may explore diet, nutrition, lifestyle factors, and integrative therapies. She strives to create a warm, supportive environment where patients feel truly heard.

Dr. Chu values shared decision-making. She listens carefully to patients’ concerns and goals and collaborates with them to develop individualized treatment plans tailored to each person’s needs.