Dr. Irwin L. Schwartz, M.D., F.A.A.P.

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Get to know Pediatrician Dr. Irwin L. Schwartz, who serves patients in Setauket, New York.

Dr. Schwartz, a board-certified pediatrician, provides primary care for children of all ages, from little ones to teenagers. In addition to his association with Mather Hospital, he is affiliated with Stony Brook Medicine in Setauket, New York.

Stony Brook Medicine integrates and elevates all of Stony Brook University’s health-related initiatives: education, research, and patient care. It includes five Health Sciences schools — Dental Medicine, Health Technology and Management, Medicine, Nursing and Social Welfare — as well as Stony Brook University Hospital, Stony Brook Southampton Hospital, Stony Brook Eastern Long Island Hospital, Stony Brook Children’s Hospital, and more than 100 community-based healthcare settings throughout Suffolk County.

The doctor’s acclaimed career in medicine began in 1970 after he earned his medical degree from the Catholic University of Louvain in Belgium. Upon relocating to the United States, he completed his residency in pediatrics at Mount Sinai Hospital in Chicago.

In addition to being a Fellow of the American Academy of Pediatrics, he is a member of the Suffolk County Medical Society and the New York State Medical Society. 

Moreover, he is board-certified in pediatrics by the American Board of Pediatrics (ABP), which is one of the 24 certifying boards of the American Board of Medical Specialties. Founded in 1933, the ABP is an independent, nonprofit organization whose certificate is recognized throughout the world as a credential signifying a high level of physician competence. Certification by the ABP has one objective, to promote excellence in medical care for children and adolescents. 

Pediatrics is the branch of medicine that involves the medical care of infants, children, and adolescents. The American Academy of Pediatrics recommends people be under pediatric care up to the age of 21. As a pediatrician, Dr. Schwartz provides medical care to people ranging in age from newborns to young adults. He is trained to examine, diagnose, and treat children with a wide variety of injuries and illnesses through all of their developmental stages, as they grow and mature. 

Among his numerous accolades, Dr. Schwartz is the recipient of the Patients’ Choice Award (2014, 2015) and Compassionate Doctor Recognition (2012, 2014, 2015). 

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