Siera Kirkland, MD

MassachusettsHolly James Corrigan, RN, MSN, PMHNP, is a board-certified psychiatric nurse practitioner committed to helping people navigate their mental health with skill and heart. She earned her BSN from Russell Sage College in 2009, her MSN from Massachusetts General Hospital Institute for Health Professions in 2016, and completed Psychiatry Redefined’s Fellowship in Functional and Integrated Psychiatry in 2025. Holly keeps current by attending top conferences, like the International Trauma Conference in Boston, ensuring she’s always at the forefront of her field.

Holly’s philosophy is simple yet powerful: care should fit the person, not just the diagnosis. She’s passionate about tackling complex issues—suicide prevention, C-PTSD, chronic depression, ASD, OCD—and advocating for underserved communities. For Holly, it’s about delivering real, meaningful support to those who need it most.

Her career began as a registered nurse in neurology, pediatrics, and emergency care, before she found her calling in psychiatry. Since then, she’s provided medication management and supportive psychotherapy in outpatient clinics and worked in inpatient units serving adults and adolescents.

Holly believes in patient-centered care based on the individual, rather than focusing only on a diagnostic algorithm. The first appointment will include a comprehensive psychiatric evaluation and a discussion about what your goals of treatment are. Pharmacological and therapeutic recommendations are both important elements of the treatment plan. Follow up appointments will be more concise, but may include various therapeutic modalities, medication changes, and supportive psychotherapy.

Dr. Jiang is a board-certified adult psychiatrist. His practice focuses on medication management and supportive therapy. His major goal is for treatment to be patient centered, with a focus on high quality, evidence-based care in the safest and most meaningful way. Dr. Jiang completed an undergraduate degree at the University of California, Los Angeles. He received his medical degree from Oakland University William Beaumont, School of Medicine. He then completed his psychiatry residency at Loyola University Medical Center. Dr. Jiang's areas of interest include depression and post-traumatic stress disorder.‍

Dr. Jessica Marz is a board-certified psychiatrist who completed her undergraduate studies at the University of Florida and earned her medical degree from the Florida State University College of Medicine. She went on to complete her psychiatry residency at the University of Florida College of Medicine Jacksonville. Dr. Marz treats adults experiencing a variety of mental health concerns, including anxiety, depression, PTSD, OCD, ADHD, bipolar disorder, and adjustment-related challenges.

Dr. Marz is a compassionate and thoughtful psychiatrist committed to holistic, patient-centered, evidence-based care. She approaches each individual with warmth and without judgment, fostering a therapeutic environment built on open communication and trust. She believes that strong rapport is essential to achieving meaningful progress in treatment.

Dr. Marz combines medication management with supportive psychotherapy, incorporating cognitive-behavioral techniques and motivational interviewing. She customizes each treatment plan to align with the patient’s personal goals and evolving needs, recognizing that healing is a highly individualized journey.

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.

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Dr. Akhtar is a board-certified psychiatrist specializing in compassionate and comprehensive mental health care. She focuses on medication management for a wide range of psychiatric conditions, providing supportive therapy to help individuals navigate life's challenges and enhance their overall well-being, while emphasizing lifestyle changes and the development of coping skills. Dr. Akhtar completed her medical degree at the American University of Antigua, gaining a profound understanding of the biological, psychological, and social aspects of mental health. Following her residency at Bergen, Newbridge Medical Center, where she was appointed Chief Resident in her fourth year, she worked for several years in both inpatient and outpatient hospital settings. Committed to holistic wellness, Dr. Akhtar believes in empowering individuals to make positive changes in their lives and offers guidance on nutrition, exercise, sleep hygiene, and stress management techniques. She is dedicated to fostering a therapeutic alliance built on trust, empathy, and collaboration. Her approach is rooted in evidence-based practices and tailored to meet the unique needs of each individual under her care.

Dr. Syed Abbasi is an adult psychiatrist who completed his undergraduate education at Rutgers University and earned his medical degree at Ross University. He completed his psychiatry residency training at Creedmoor Psychiatric Center with training at New York-Presbyterian/Columbia University Medical Center, additionally as Chief Resident at Columbia University's Outpatient Adult Psychiatry Eye-6 clinic. Dr. Abbasi is passionate about and experienced in providing holistic, thoughtful, evidence-based care for patients with depression, anxiety, obsessive compulsive disorder, trauma-related disorders, relationship issues and struggles with self-image. He believes empathy and understanding are the most fundamental components of the doctor-patient relationship. He provides psychiatric medication management and integrates supportive psychotherapy, elements of dialectical behavioral therapy (DBT), stress management techniques and lifestyle interventions to meet patients where they are and collaborate toward improvement and optimization of their wellness. Occasionally, when appropriate, he may recommend adding a therapist to your care team for further benefit.