Delirium is a health issue that causes confusion, dizziness, and falling in and out of consciousness. It can be caused by medications, poisoning, serious illness, and more.

Programs + Services

Neurodegenerative (Dementia) Disorders Program

Our Dementia Care Clinic in downtown Boston specializes in the treatment of degenerative brain diseases and other types of dementia.
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General Adult Psychiatry and Psychotherapy Program

Tufts MC Psychiatry in Boston offers general psychiatry and psychotherapy to provide evaluation and therapy for the full range of mental health problems.
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Doctors + Care Team

Rajesh R.  Zacharias, MD

Rajesh R. Zacharias, MD

Accepting New Patients

Title(s): Pulmonologist; Associate Director of Critical Care, Hallmark Health; Assistant Professor of Medicine, Tufts University School of Medicine
Department(s): Medicine, Pulmonary, Critical Care and Sleep Medicine
Appt. Phone: 617-636-6377
Fax #: 617-636-1649

Pulmonary Medicine, including: general pulmonology, COPD, thoracic oncology and lung cancer, endobronchial ultrasound and advanced bronchoscopy, pleural and interstitial lung disease, pulmonary infections. Critical Care Medicine, including: mechanical ventilation, noninvasive ventilation, ARDS, delirium in the ICU, shock, ICU outcomes. Sleep Medicine, including: obstructive sleep apnea, hypoglossal nerve stimulation, central sleep apnea, narcolepsy and hypersomnia.

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