Kristofer Joondeph-Breidbart, MD

Dr. Lauren McClairen is a psychiatrist board certified in General Psychiatry and Addiction Medicine. She completed her medical and psychiatric training at Meharry Medical College in Nashville, TN and a fellowship in Addiction Medicine at Baptist Memorial Hospital in collaboration with IAC (Integrated Addiction Care) in Memphis, TN. Dr. McClairen has clinical experience and practice working with other specialties and disciplines in treatment teams and integrated care models both in the inpatient and outpatient setting. She has held an academic appointment at Baptist Memorial Hospital where she enjoyed teaching and supervising medical residents and fellows in training. She most recently served as the Regional Behavioral Health Medical Director for a group of mental health clinics throughout Tennessee, and as the Chief of Psychiatric Services for a residential treatment facility in Mississippi that also had Partial Hospital and Intensive Outpatient Programming (PHP/IOP). She is experienced in treating patients with a variety of mental health diagnoses including but not limited to depression, bipolar disorder, anxiety disorders, ADHD, OCD, PTSD, and those with a history of substance use disorders. Dr. McClairen works collaboratively with her patients to provide treatments tailored to each patient's individualized needs. She prioritizes building trusting relationships and fostering open communication. Patients can expect a compassionate approach often with utilization of supportive therapy, mindfulness, and at times cognitive behavioral and psychodynamic psychotherapy techniques to address their psychosocial stressors and unique needs.

Dr. Anna Ostrovskaya is a board-certified psychiatrist with over 20 years of experience working with adults of all ages. She earned a bachelor’s degree in psychology from NYU, a medical degree from Rush Medical College, and completed her psychiatry training at Yale. Dr. Ostrovskaya has practiced in inpatient, consultation-liaison, and emergency psychiatry settings, though her primary passion is outpatient care, where she builds long-term therapeutic relationships. She has worked in private practice and clinic settings and serves on the faculty at Yale’s Psychiatry Department, teaching and supervising trainees. She treats a wide range of conditions, including anxiety, OCD, ADHD, PTSD, depression, bipolar disorder, and more, with experience across diverse populations.

Dr. Ostrovskaya emphasizes integrating therapy and medication management. She creates a warm, safe, and respectful space where patients feel understood and supported in their journey to recovery. Her approach focuses on treating the whole person, recognizing that everyone’s story is unique and informs the best path forward.

She conducts thorough evaluations and uses evidence-based prescribing while incorporating psychotherapeutic modalities such as CBT, executive skills training, insight-oriented approaches, and motivational interviewing. Understanding a patient’s history, current symptoms, and treatment goals is central to developing an effective plan and building a strong therapeutic relationship.

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Dr. Dennis Valerstain is a board-certified Adult and Child and Adolescent Psychiatrist. After completing his undergraduate education at Emory University, he attended medical school at the Northwestern University Feinberg School of Medicine. He subsequently completed psychiatry residency at University of Miami/Jackson Health System and further sub-specialized at University of Miami/Jackson Health System with a fellowship in Child and Adolescent Psychiatry. Dr. Valerstain has had the opportunity of working with a diverse array of patients including children, adolescents, the severely mentally ill, veterans, and cancer patients across three distinct hospital systems. Dr. Valerstain has had varied clinical experiences in specialty inpatient psychiatry units, emergency psychiatry, consultation liaison psychiatry, psycho-oncology, and outpatient clinics via telemedicine and face to face interactions. Dr. Valerstain has experience working with patients of all ages, particularly those with depression, anxiety, bipolar disorder, ADHD, Tic disorders, substance use disorders, and more. Dr. Valerstain's practice focuses on medication management and also employs empathic listening, supportive psychotherapy techniques, and a comprehensive and methodological approach to his visits. Given his broad and diverse training experiences, he enjoys problem solving and working collaboratively with patients (and their families) to navigate their complex issues and jointly focusing on simple solutions to work towards improving their mental health.

Dr. Jon-Kar Zubieta is a board-certified psychiatrist and nuclear medicine physician whose work bridges neuroscience and clinical care. He focuses on understanding how the brain regulates motivation and stress, applying this knowledge to mood disorders, pain, and substance use. With extensive experience in functional imaging, Dr. Zubieta explores how neurobiological mechanisms shape emotional and physical well-being.

Dr. Zubieta takes a collaborative and evidence-based approach to care. He values patient perspectives and prioritizes creating a supportive environment where patients feel heard. His goal is to tailor treatment plans that address both the psychological and biological aspects of mental health conditions.

Dr. Zubieta begins with a thorough assessment of each patient’s history, symptoms, and goals. He integrates clinical evaluation with insights from neuroscience and imaging research when relevant. Together with patients, he develops a personalized treatment plan that may include therapy, medication, or combined approaches, continually adjusting strategies to optimize outcomes.

Dr. Robben proudly served in the U.S. Air Force and has been practicing psychiatry for 17 years. He is happy to have completed his medical school education, as well as his residency in general psychiatry and fellowship in addiction psychiatry, all at the University of South Florida in Tampa. Dr. Robben is board certified in both general psychiatry and addiction psychiatry. He has experience in many roles over the span of his career to include working with Veterans diagnosed with posttraumatic stress disorder and substance use disorders, managing specialty clinics for patients with treatment-resistant depression, and working in general outpatient psychiatry clinics, as well as emergency and inpatient psychiatric settings. Dr. Robben also previously served as the Training Director for the University of South Florida Morsani College

of Medicine Addiction Psychiatry Fellowship Program. He is currently the Medical Director at a residential substance use disorder treatment center in Florida. Additionally, Dr. Robben is a certified Medical Review Officer and has additional qualifications in transcranial magnetic stimulation (TMS) and Spravato.

(esketamine). Dr. Robben has been voted as Addiction Medicine "Top Doctor" in Tampa Bay, FL by physicians for 8 of the last 9 years. Dr. Robben specializes in treating depression, bipolar disorder, anxiety, PTSD, OCD, ADHD and substance use disorders.

Dr. Robben uses a supportive, patient-centered approach, taking into account each individual's personal values and goals when formulating a treatment plan. He educates patients on the most up to date scientific evidence and provides multiple treatment options to help each person determine the most appropriate plan for them.  

Dr. Robben believes in a collaborative and holistic approach to working with his patients. Dr. Robben spends a significant amount of time educating his patients on all forms of mental health treatment, from medications and psychotherapy, to nutrition, exercise, meditation and sleep hygiene. What works well for

One person may not work well for another person. Having options and understanding the potential benefits and risks of each treatment empowers patients to take an active role in their own healthcare.

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Dr. Matthew Richter has experience practicing in outpatient and inpatient settings, as well as with military and confinement populations. He earned his medical degree from the Uniformed Services University of the Health Sciences and completed a psychiatry residency at Walter Reed National Military Medical Center, followed by a forensic psychiatry fellowship at the National Capital Consortium.

Dr. Richter fosters a safe, non-judgmental space where patients can explore their feelings and experiences freely, met with unconditional positive regard. He prioritizes active listening and deep empathy, ensuring each patient feels heard, understood, and valued as a unique individual throughout their treatment journey.

Initial sessions focus on a collaborative exploration of a patient’s history, current challenges, and core values, forming the foundation for a personalized treatment plan. Dr. Richter emphasizes shared decision-making, integrating therapeutic modalities—including medication when appropriate—while honoring patient autonomy and aligning with their vision for well-being.