Dr. Robert Guarino is a board-certified pathologist, breast pathology specialist, and medical educator serving the New York metropolitan area. He is Director of Breast Pathology Services at Staten Island University Hospital–Northwell Health, where he works as part of the multidisciplinary breast care team associated with the Florina Rusi-Marke Comprehensive Breast Center.

Raised in New Jersey, Dr. Guarino demonstrated a strong academic record early in life, ranking seventh in his high school graduating class. He attended Rutgers University in New Brunswick on an athletic lacrosse scholarship and graduated with honors with a bachelor’s degree in biological sciences and a pre-medical focus.

Dr. Guarino earned his M.D. from UMDNJ–New Jersey Medical School, now part of Rutgers. He subsequently completed a four-year residency in Anatomic and Clinical Pathology at RWJ/St. Barnabas Medical Center in Livingston, New Jersey. During his residency, he served as Chief Resident in both his third and fourth years.

Following residency, Dr. Guarino pursued additional specialization at The Mount Sinai Hospital and Medical Center in Manhattan. He completed a fellowship in oncologic pathology followed by a second fellowship dedicated specifically to breast pathology.

In 2012, Dr. Guarino joined Staten Island University Hospital, where his work in breast pathology supports a multidisciplinary approach involving specialists in breast surgery, imaging, medical oncology, radiation oncology, genetics, nursing, and pathology.

Education is another important component of his career. As an Assistant Professor, Dr. Guarino teaches pathology to medical students and contributes to the education and development of resident trainees.

He maintains his knowledge through continual study of breast pathology journals and textbooks as well as regular continuing medical education. For Dr. Guarino, professional success ultimately means applying years of specialized training and clinical experience in service of his community and supporting positive outcomes for people dealing with breast disease.