Physician Photo

Antonia Elizabeth Stephen, MD

  • Phone: 617-726-0531
Surgical Oncology
Department of Surgery


  • MassGeneral Hospital for Children
Clinical Interests
Thyroid surgery
Parathyroid surgery
Thryoid cancer
Graves' disease
Adrenal tumors
Boston: Massachusetts General Hospital
Newton: Newton-Wellesley Hospital
Waltham: Mass General West
Medical Education
MD, Harvard Medical School
Residency, Massachusetts General Hospital
Fellowship, Cleveland Clinic Foundation
Board Certifications
Surgery, American Board of Surgery
Patient Age Group
Adult and pediatric
Accepting New Patients
Accepting New Patients

BiographyDr Antonia Stephen received her medical degree from Harvard Medical School and subsequently completed her general surgical residency at the Massachusetts General Hospital and an endocrine surgical fellowship at the Cleveland Clinic. She then joined the surgical staff at the Massachusetts General Hospital in the Division of Surgical Oncology. Her clinical practice is focused on the surgical management of patients with endocrine tumors and she is a member of the MGH Endocrine Surgery Unit, the highest volume center in the country focused on surgery of the thyroid, parathyroid, and adrenal glands. Her particular areas of clinical expertise are in minimally-invasive parathyroid surgery, the treatment of thyroid cancer, and laparoscopic adrenal surgery. She also performs in-office ultrasound and ultrasound-guided biopsies of thyroid nodules and parathyroid tumors.

ResearchDr. Stephen's research interests are focused on thyroid and parathyroid tumors. Her primary areas of investigation include the diagnosis of thyroid nodules, specifically the pre-operative differentiation of malignant and benign thyroid tumors. She has conducted original research on the topic of parathyroid localization with sestamibi/parathyroid scanning and four-dimensional computed tomography. She also manages the endocrine surgical database, a hospital-wide program that is utilized in clinical research studies

Surgical Oncology Associates
55 Fruit Street
Boston, MA 02114-2696

Phone: 617-726-0531
Fax: 617-724-3895

Mass General West
52 Second Avenue
Waltham, MA 02451

Phone: 781-487-6100
Fax: 781-487-6201