Julia Wellin, MD

Tiffany Chaille is a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP) with nearly a decade of clinical practice and over 15 years of experience working in behavioral health. Her background includes inpatient and outpatient psychiatry, crisis-focused care, community mental health, integrated pain and psychiatry care, and telepsychiatry. She has a growing interest in functional and integrative approaches to mental health. Tiffany earned her Master of Science in Nursing as a PMHNP from Indiana University and her Bachelor of Science in Nursing from Indiana State University.

Tiffany believes mental health care is most effective when patients feel comfortable, supported, and truly heard. She takes a calm, compassionate, and nonjudgmental approach, meeting patients where they are. Her care focuses on practical, real-life treatment plans while considering sleep, stress, medical factors, and lifestyle influences. She values collaboration and aims for patients to feel informed, involved, safe, and confident throughout their care.

Tiffany begins by getting to know the person beyond the symptoms and understanding what brought them to care. She works collaboratively to develop individualized, realistic treatment plans using evidence-based medication management. Ongoing follow-up, thoughtful adjustments, clear communication, and a whole-person approach guide her work, with an emphasis on consistency and long-term support.

Dawn Parks, LMHC, has worked in hospitals, forensics, community clinics, private practice, and research with Harvard Medical School, where she served as project director for a two-year addictions study for couples. She holds an undergraduate degree in exercise physiology, a master’s in clinical psychology, and a PhD in psychology. Dawn is a HeartMath practitioner with certifications in clinical stress, anxiety, and self-regulation treatment, as well as trauma-sensitive interventions. She also holds advanced certifications in addictions and Mindfulness-Based Stress Reduction and has extensive training in trauma work, couples therapy, nutrition for mental health, and healthy lifestyle development.

Dawn values open communication and works with patients to set clear treatment goals. She creates a warm, supportive environment where patients feel heard and respected. She emphasizes the mind-body connection, encouraging movement toward health from both perspectives, and meets patients where they are, providing a non-judgmental, trusting space conducive to growth.

She begins by thoroughly understanding each patient’s history, concerns, and goals during the initial session. Dawn develops individualized treatment plans aligned with patient objectives. Using a collaborative approach, she matches interventions to each client’s needs, fostering teamwork and supporting patients in achieving sustainable progress.

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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.

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.

Dr. Olivia Plante is a board-eligible psychiatrist with a focus on evidence-based medicine including psychopharmacology and nutritional psychiatry in the diagnosis and treatment of a wide range of psychiatric disorders.

She is originally from New York, having completed her undergraduate degree in psychology from The City College of New York, followed by a master’s degree in medical anthropology from Binghamton University and a Doctor of Medicine degree from the University at Buffalo. She completed psychiatric residency training at the Zucker School of Medicine/Northwell Health, with experience in medication management, psychotherapy, and collaborative multidisciplinary care of adults and adolescents in the outpatient, inpatient, partial hospital and emergency settings.

Initial evaluations will involve collecting history about social circumstances; past medical, psychiatric, substance use, and family conditions; as well as current lifestyle habits such as sleep, nutrition, supplement use, level of physical activity, and stress management skills.

Treatment sessions will explore the mind-body connection and individual lifestyle factors in combination with psychoeducation for a personalized wellness approach.

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Dr. John Weller, MD, is a psychiatrist with a strong foundation in science and clinical care. He earned his undergraduate degree in molecular genetics from the University of Vermont and conducted neuroscience research in both academic and industry settings. A graduate of St. George’s University School of Medicine, he completed his psychiatry residency at Mather Hospital, Northwell Health, where he was honored as Resident of the Year in 2025 and inducted into the Alpha Omega Alpha Honor Medical Society.

Dr. Weller is committed to providing compassionate, evidence-based care that considers the full spectrum of biological, psychological, and social factors. He builds therapeutic relationships on empathy, respect, and trust. By tailoring treatment plans to each patient’s personal and cultural context, he helps individuals take control of their mental health and work toward long-term recovery and resilience.

In the first session, Dr. Weller takes time to listen carefully and gather a thorough understanding of each patient's concerns, history, and current functioning. He uses empathy and active listening to foster open communication and develop personalized treatment plans that may include therapy, medication, or lifestyle changes, with the goal of restoring wellness and stability.