Bay State Ob Gyn Group: Hallowell Jennifer MD is a healthcare institution located at 470 Granby Road in South Hadley, Massachusetts, United States. This facility specializes in obstetrics and gynecology, offering comprehensive care for women's health needs. Dr. Jennifer Hallowell is a highly experienced physician who provides personalized and compassionate care to her patients. Whether you are in need of routine check-ups, prenatal care, or specialized treatment, the team at Bay State Ob Gyn Group is dedicated to helping you achieve optimal health and wellness.