Lahey Clinic Inc: Harris Gerald S MD is a medical institution located at 267 Boston Road in Billerica, Massachusetts, United States. Dr. Gerald S. Harris is a highly skilled and experienced doctor specializing in health care services. Patients can expect top-notch medical care and personalized treatment plans at this esteemed clinic. Whether you are in need of a routine check-up or seeking treatment for a specific health issue, Dr. Harris and his team are dedicated to providing the highest quality care to all patients.