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Kristofer Joondeph-Breidbart, MD

Staff Psychiatrist
Languages
English
SPECIALTIES
ADHD
Anxiety
Bipolar Disorder
Depression
LGBTQIA+
Obsessive-compulsive disorder (OCD)
Phobias
Geriatric
Medication Management

Education and training

  • University of Massachusetts Medical School Doctor of Medicine (MD)
  • Cambridge Health Alliance (Residency)

Get to know

Kristofer Joondeph-Breidbart, MD

Dr. Kristofer Joondeph-Breidbart is a board certified adult psychiatrist. He earned his undergraduate degree and Master's in Teaching from Boston University, followed by his medical degree from the University of Massachusetts Medical School. Dr. Joondeph-Breidbart completed his residency in general adult psychiatry at Cambridge Health Alliance, a Harvard teaching hospital. Currently, Dr. Joondeph-Breidbart serves as a staff psychiatrist at Harvard University Health Services, where he works with both undergraduate and graduate students. He has developed significant expertise in working with LGBTQ individuals through his involvement with the Gender and Sexuality Clinic at Cambridge Health Alliance and the LGBTQ Interdisciplinary Team at Harvard University Health Services. While he has extensive expertise in treating college-aged young adults, his practice also includes a broad range of patients, with a particular specialization in Obsessive-Compulsive Disorder (OCD). He is trained in Exposure and Response Prevention Therapy, a highly effective treatment for OCD. Dr. Joondeph-Breidbart takes a holistic approach to mental health care, integrating therapy into his sessions and collaborating with patients to develop individualized medication regimens that best meet their needs. His gentle and understanding approach helps create a supportive environment for his patients, fostering their mental and emotional well-being.

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Justine Chilelli, DO

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Dr. Justine Sever Chilelli, DO, earned her medical degree from the Lake Erie College of Osteopathic Medicine and completed her psychiatry residency and child and adolescent fellowship at the University of South Florida. She is board certified in General Psychiatry and Child and Adolescent Psychiatry. Her experience includes treating children, adolescents, and adults across outpatient, inpatient, consultation-liaison, school-based, and residential settings.

Dr. Chilelli values a collaborative, team-based approach where she and her patients work together to build a treatment plan. She emphasizes open and honest communication, aiming to improve quality of life and reduce the impact of mental health symptoms.

In the initial appointment, Dr. Chilelli focuses on understanding each patient’s history, concerns, and goals. She then develops individualized treatment plans that align with those goals, ensuring care that is thoughtful, supportive, and tailored to each patient’s needs.

Mary Poupon, PMHNP

Staff Nurse Practitioner

Mary Poupon is an experienced board certified psychiatric APRN/psychiatric nurse practitioner with over 30 years' experience in her field. She completed her graduate work at Columbia University and is published in her field. Her practice sites have included inpatient hospital treatment, partial hospital programs, in-home programs, outpatient clinics and alternative therapy including equine assisted therapy.  She was the program director and clinician with the Ryan White Mental Health Program in New York providing innovative mental health treatment for adolescents and adults living with HIV/AIDS in the boroughs of Manhattan, Queens, Brooklyn and the Bronx.  In 2013 she became certified as an equine assisted psychotherapist and served as the Director of Mental Health at Embrace Hope in Sandy Hook, CT. She was appointed as the Executive Director of Embrace Hope in 2017. Embrace Hope provided treatment to children, adolescents and adults who were victims of trauma related to the shooting at the Sandy Hook Elementary School. She presented a TED x talk in 2018 regarding her work with victims of trauma. She has provided treatment in the outpatient setting for children, teens, and adults. She has provided treatment to young adults at the Covenant House New York shelter program for homeless young adults.

Mary believes the human spirit is resilient. There are many challenges in the lifespan and self-care is paramount to success.

Mary provides psychiatric consultation and assessment and provides a pathway to change. Treatment may include medication management, therapy, and coping skills to assist with life challenges. Mary believes treatment is a partnership and believes in establishing mutually agreed upon goals.

Mary's process for working with patients begins with active listening. The assessment begins with the patient describing why they are seeking engagement in behavioral health treatment at this time. She will complete a psychiatric assessment and evaluation and establish mutually agreed upon goals for treatment. She offers medication management in conjunction with supportive therapy in 30-minute follow-up visits. Mary believes therapy and medication management if indicated together provides the best treatment outcomes.

Deora Johnson, PMHNP

Staff Psychiatric Nurse Practitioner

Deora Johnson, PMHNP, is a board-certified adult psychiatric nurse practitioner with 24 years of experience. He is passionate about providing clients with a holistic approach to mental health care, incorporating both pharmacologic and non-pharmacologic interventions. Deora works with adult and senior populations, focusing on the assessment, diagnosis, and treatment of mental health conditions. He collaborates closely with clients to guide them through understanding and selecting the most effective interventions and medication management options for their needs. Supportive therapy, solution-focused therapy, and motivational interviewing are integral components of his medication management sessions.

Deora earned his Master of Science in Nursing from Vanderbilt University in Nashville, Tennessee, and completed a nursing practice degree at the University of Alabama in Birmingham. He has experience treating patients in a variety of outpatient and inpatient settings.

His areas of specialty include the treatment of major depressive disorder, anxiety disorders, bipolar disorder, ADHD, PTSD, and insomnia. His research focused on non-pharmacologic interventions for insomnia in individuals with depression.

Deora also has experience working with military veterans. At the VA Outpatient Clinic in Baltimore, Maryland, he treated veterans returning from Operation Iraqi Freedom and Operation Enduring Freedom, as well as those from the Vietnam and Korean War eras. His clinical work focused on PTSD, major depressive disorder, anxiety disorders, and bipolar disorder.

Deora believes the therapeutic relationship offers a unique opportunity to work collaboratively through life’s challenges. He views medication management as an important part of a comprehensive treatment plan that also includes therapy.

Moni Baidya, MD

Staff Psychiatrist

Background and credentials

Dr. Moni Baidya is double board-certified in adult and geriatric psychiatry with over nine years of experience. She earned her medical degree from Manipal College of Medical Sciences and completed her psychiatry residency and geriatric fellowship training at the University of Virginia, Charlottesville. Her background includes work in nursing homes, acute rehabilitation centers, inpatient psychiatric units, and outpatient settings, providing care for diverse patient populations.

Treatment approach

Dr. Baidya strongly believes that developing a good therapeutic rapport is essential for successful treatment. Her practice primarily focuses on medication management, often combined with supportive, psychodynamic, cognitive-behavioral (CBT), and couple’s therapy in 20–30 minute follow-up visits. She takes a holistic approach, particularly for patients with complex medical conditions that impact emotional health, collaborating with interdisciplinary teams and family members when appropriate. In addition to general adult psychiatry, she specializes in geriatric psychiatry and women’s mental health, with a primary focus on treating women with mood and anxiety disorders and geriatric patients with newly diagnosed psychiatric conditions.

What you can expect in a first visit

During the first visit, patients can expect a comprehensive evaluation where Dr. Baidya takes the time to assess their symptoms, medical history, and treatment goals. She fosters a collaborative and supportive environment, ensuring that treatment plans are tailored to individual needs. Follow-up visits typically last 20–30 minutes, with a focus on medication adjustments and therapeutic support. If additional therapy is necessary, she may recommend integrating a therapist into the patient’s care team for the best possible outcome.

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Lauren Miller, MD

Staff Psychiatrist

Dr. Lauren Miller earned her medical degree from Loma Linda University and completed her psychiatry residency at the University of Miami. She has experience working in both inpatient and outpatient psychiatry, caring for individuals from diverse backgrounds and with a wide range of clinical needs. Dr. Miller has a special clinical interest in lifestyle and integrative psychiatry, particularly the role of nutrition, exercise, sleep, and mind-body practices in supporting mental health.

Dr. Miller strives to create a warm, collaborative, and non-judgmental environment where patients feel truly heard and supported. She values whole-person care, addressing not only mental and emotional health, but also physical and spiritual well-being. She believes in partnering with patients to create treatment plans that reflect their values, goals, and strengths. Her approach emphasizes accessibility, practicality, and empowerment, providing patients with tools they can integrate into daily life.

Dr. Miller begins with a thorough, compassionate evaluation, taking into account both medical and psychiatric history as well as personal goals. She develops personalized treatment plans that may include a blend of medication, psychotherapy, and lifestyle approaches. Dr. Miller encourages small, sustainable steps in areas such as nutrition, sleep, movement, and stress management, with the goal of not only reducing symptoms but also building resilience and long-term wellness.

Swagato Bhattacharyya, DO

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Dr. Swagato Bhattacharyya has completed his residency training at Northwell and is a board certified psychiatrist. Dr. Bhattacharyya takes a holistic approach to patient care, establishing strong physician-patient relationships built on trust, respect, and communication. He primarily focuses on medication management and also provides supportive psychotherapy. Treatment sessions will be tailored to work towards a common goal to optimize one's mental well-being. Dr. Bhattacharyya graduated magna cum laude from undergraduate Binghamton University, received his medical degree from NYIT College of Osteopathic Medicine, and completed his residency in psychiatry at Northwell Mather Hospital. He has trained in various settings, including adult/adolescent psychiatric units and specialty clinics, and has experience in telepsychiatry visits. Dr. Bhattacharyya has experience in treating numerous mental conditions, including depressive disorders, bipolar disorder, anxiety disorders, ADHD and OCD. Dr. Bhattacharyya also has experience treating patients of diverse cultures, having worked in psychiatric settings in the NYC metro and Long Island area.‍

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Specialties
ADHD
Anxiety
Bipolar Disorder
Depression
LGBTQIA+
Obsessive-compulsive disorder (OCD)
Phobias
Geriatric
Medication Management
States
Massachusetts
California
Languages
English
Takes insurance
Virtual visits
years experience