Dr. Mark Jeffrey Weinstein, MD

Dr. Mark Weinstein specializes in internal medicine and infectious disease, bringing over five decades of clinical expertise to his practice. He earned his medical degree from Harvard Medical School and completed his residency at University Hospital Health System. His extensive experience spanning 51 years has established him as a trusted physician in managing complex medical conditions. Dr. Weinstein is fluent in both English and Spanish, enabling him to serve a diverse patient population.

Dr. Weinstein practices at Saint Joseph Hospital and sees patients in Plainview and Bethpage, New York. He focuses on treating high cholesterol in children and teens, helping young patients establish healthy habits early in life. His expertise extends to managing hyperlipidemia and familial lipid disorders, conditions that require specialized knowledge of genetic factors affecting cholesterol levels. Patients consistently rate their care highly, giving him an average rating of 4.6 out of 5 stars.