Natalie Cummings, MD

Tracy King, PMHNP-BC, is a compassionate and board-certified psychiatric nurse practitioner dedicated to supporting individuals on their mental health journeys. She holds a Master of Science in Nursing from The Ohio State University and has experience working with individuals across the lifespan.

Tracy has worked in a variety of clinical settings, addressing a broad range of mental health concerns. She is driven by a strong commitment to serving those in need and takes pride in delivering trauma-informed, evidence-based care tailored to each individual’s unique circumstances.

Her approach centers on creating a supportive environment where patients feel heard, valued, and empowered. Tracy’s goal is to help individuals build resilience, enhance well-being, and achieve meaningful, lasting change.

Believing that each person is the expert in their own life, Tracy takes time to listen, understand, and build genuine connections. She collaborates closely with her patients to develop care plans that reflect a whole-person perspective.

Tracy emphasizes shared decision-making and a holistic approach to mental health care. Her calm, positive demeanor and approachable communication style foster trust and openness, allowing her to build strong therapeutic relationships that support healing and growth.

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Dr. Deringer is a psychiatrist with board certification in general psychiatry and addiction psychiatry. She earned her M.D. from the University of Michigan Medical School, and she completed her psychiatry residency and addiction psychiatry fellowship training at New York University. She has previously held faculty roles at New York University School of Medicine and Harvard Medical School. She has been involved in training the next generation of psychiatrists through her past work on the Program Director team for the MGH-McLean Psychiatry Residency Program. She has expertise in treating adults with mood disorders, anxiety disorders, substance use disorders, personality disorders, trauma, and ADHD.

Dr. Deringer cares deeply about understanding each patient's unique experience.  She recognizes that mental health symptoms are impacted by an individual's biological make-up, social situation, and their individual way of interacting with others in the world.  She will assess all of these factors and work with you to develop an appropriate treatment plan to help you feel better and meet your goals.  She incorporates supportive psychotherapy into all of her patient meetings; this may include discussions of the role of nutrition, exercise, and sleep habits in your overall well-being.

Dr. Deringer will begin the evaluation process with a thorough one-hour session in which we will discuss your current symptoms, your prior treatment history, your medical history, and your goals for treatment.  At the end of that session, she will begin to formulate her diagnostic impression and treatment recommendations.  Sometimes, the evaluation process may require more than one session, and it may be helpful for Dr. Deringer to gather information, with your permission, from prior treatment or to collaborate with your therapist if you have one.  Dr. Deringer will work with you on a medication treatment plan, if clinically indicated, to help you manage your symptoms and achieve your treatment goals.

Dr. Bellavia is an experienced board-certified psychiatrist who specializes in adult psychiatry. He was a faculty member of the University of Washington School of Medicine in Seattle for 8 years and has been a medical director and attending psychiatrist in several clinical settings including academic medical centers, outpatient private practice and consultation. Dr Bellavia works collaboratively with each patient to identify presenting problems and stressors and utilizes evidence-based medication treatments along with individualized supportive and short-term psychotherapy strategies to reduce symptoms and improve function. If clinically indicated, he may recommend adding a psychotherapist to your care team. Dr. Bellavia has a particular interest in treating psychiatric conditions including, but not limited to, depression and bipolar disorders, ADHD, anxiety disorders, and adjustment problems. He has extensive experience working with individuals from diverse backgrounds, such as university students, creative and tech professionals, and expat communities. He uses a relaxed, nonjudgmental, empathic approach that is holistic and considers the biological, psychological, social, and cultural factors that impact mental well-being.

Dr. Vargas is an adult psychiatrist who received her medical degree from the University of Texas Health Science Center of San Antonio. She subsequently completed her psychiatry residency training at UT Health San Antonio.

Dr. Vargas has a patient-centered and thorough approach to treatment. She has experience treating a broad spectrum of mental health disorders, with particular interest in depression, anxiety, and post-traumatic stress disorder. She has also worked in clinic with severely mentally ill patients at the South Texas VA in San Antonio.

Dr. Vargas's primary focus is medication management with an emphasis on shared decision-making; however, she frequently also utilizes supportive therapy, cognitive behavioral therapy, and psychodynamic therapy principles in her approach. She may refer patients to a therapist if further support would be beneficial.

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Dr. Whitehouse is a board-certified adult psychiatrist with a strong background in neuroscience and psychopharmacology who has been in practice for over 25 years. At the heart of Dr. Whitehouse's clinical approach is a strong emphasis on establishing trust, building a therapeutic relationship to help patients achieve their goals, and helping people better understand their brain, its strengths, and vulnerabilities and how to use assessment and training to maximize everyone's unique emotional and cognitive capacity. Dr. Whitehouse's practice focuses on medication management. Typically, he offers this in conjunction with supportive or emotionally focused therapy in 30-minute follow-up visits. Occasionally Dr Whitehouse may believe that additional therapy is also needed and ask that you bring a therapist into your care team to provide the best outcome. He received his medical degree from Dartmouth Medical School and went on to complete his residency in psychiatry at MGH in Boston. After completing training, Dr. Whitehouse has worked in every setting from a Community Mental Health Center in rural VT, a General Hospital Department of Psychiatry in Waterbury CT, and a private psychiatric hospital in Massachusetts He has held academic clinical appointments at Dartmouth, Yale and Harvard and provided supervision to medical students, residents, APRNs, Social Workers and Mental Health Clinicians. In addition to his direct clinical work, he has extensive experience with value-based care having worked with the behavioral divisions of CIGNA Behavioral Health, Optum Behavioral Health and MCG. He also has been involved in the latest approaches made possible in mental health by the growth of direct-to-consumer services as part of digital transformation. He believes that every patient is unique and every situation different. He seeks to bring a wealth of experience to bear but, above all, to do so with a personalized and compassionate focus on what will help everyone specifically, practically, effectively, and efficiently. He is especially happy to help people new to emotional help understand the value of different approaches.

Dr. Alexa Hall is a board-certified adult psychiatrist with extensive training and experience across inpatient, partial hospitalization, intensive outpatient, and outpatient psychiatry settings. She earned her medical degree from Saint Louis University School of Medicine and completed her psychiatry residency at Harvard South Shore. Through her clinical work with the Harvard Medical School system and the Boston VA Healthcare System, Dr. Hall developed expertise in caring for diverse patient populations. She has also served as Medical Director for multiple psychiatry practices, overseeing services such as outpatient medication management, Spravato, IV Ketamine, and Transcranial Magnetic Stimulation (TMS). Outside of work, she enjoys cooking and spending time with her family.

Dr. Hall provides a supportive, non-judgmental environment where patients feel heard, respected, and understood. She takes a collaborative approach, working in partnership with patients to set and achieve individualized wellness goals. Her practice emphasizes whole-person care, integrating both mental and physical well-being into each treatment plan.

Dr. Hall begins by listening closely to understand each patient’s history, experiences, and concerns. From there, she collaborates with patients to identify their personal treatment and wellness goals. She develops individualized treatment plans tailored to these goals, focusing on supporting meaningful progress and long-term well-being.