Belinda A Marquis, MD

Belinda A Marquis, MD, is a board-certified pediatrician with more than 35 years of pediatric practice in Wyandanch. She is originally from Nigeria where she received her Medical Degree from the University of Benin.

Dr Marquis completed her pediatric residency at Lincoln Hospital. She subsequently completed an ambulatory fellowship program at Nassau County Medical Center, a pediatric fellowship at Metropolitan Hospital Center, and an MBA degree at Adelphi University.

In 1987, she joined a private practice in Wyandanch, and later became the sole proprietor until December 2023, when she partnered with Stony Brook Medicine and her practice became one of Stony Brook Medicine’s locations - Wyandanch Pediatrics.

Dr. Marquis enjoys working with her patients and their families. She is excited to collaborate with Stony Brook in this effort to bring quality and easily accessible care to the children and families in Wyandanch and the surrounding communities.

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