Dr. Chwalisz grew up in Poznan, Poland and later in Berlin, Germany before moving to the United States. After college, he taught and researched Medical Ethics at the University of Oxford, UK. Dr. Chwalisz earned his medical degree at the University of Illinois College of Medicine. He completed his Internal Medicine internship at the University of Chicago, and his Neurology residency at Beth Israel Deaconess Medical Center/Harvard Medical School, where he was recognized for his dedication to teaching residents and medical students. He completed a clinical fellowship in Advanced General and Autoimmune Neurology at Mass General, and a second fellowship in Neuro-ophthalmology at Massachusetts Eye & Ear, where in addition to his clinical activities he researched treatment outcomes in idiopathic intracranial hypertension (pseudotumor cerebri).

As a clinician and teacher, Dr. Chwalisz is passionate about helping patients with neurological disorders, and he participates in the training of Mass General Neurology residents, Mass General Autoimmune Neurology fellows, and MEE Neuro-ophthalmology fellows.

Dr. Chwalisz's is particularly interested in the intersection of the brain and the eye in health and disease, and he has a particular focus on inflammatory, infectious and autoimmune disorders affecting the eye, base of skull and the nervous system. Dr. Chwalisz is the founding director of the innovative Skull Base Disorders Clinic at Mass General, a first-of-its-kind referral clinic for patients with inflammatory and infectious disorders affecting the base of the skull, including the optic nerves, orbit, cavernous sinus, cranial nerves, pituitary, meninges, temporal bones and cranial vasculature.