Physician Team
ROBERT DERHAGOPIAN, M.D.
Board-certified breast cancer surgeon Robert DerHagopian, M.D., is the medical director of Baptist Health Breast Center. He served as assistant clinical professor of surgery in the Department of Surgical Oncology at the University of Miami Miller School of Medicine from 1982 to 2002. After earning his medical degree from Tufts University School of Medicine, Dr. DerHagopian completed his surgical residency at Boston City Hospital and Tufts-New England Medical Center. He served in the U.S. Navy Medical Corps before completing a clinical fellowship in surgical oncology at the University of Miami Miller School of Medicine. As a longtime breast cancer researcher, he is widely published in medical journals and has received numerous honors for his professional contributions.
Dr. DerHagopian has presented his findings at national conferences and seminars. He also has collaborated with nationally renowned oncologists and surgeons in cancer treatment research, including serving as medical director and principal investigator of Total Cancer Care®, a collaborative research effort with the Tampa-based H. Lee Moffitt Cancer Center & Research Institute.
GLADYS GIRON, M.D.
Board-certified breast cancer surgeon Gladys Giron, M.D., is associate medical director of Baptist Health Breast Center. Previously, she was medical director of Taylor Breast Health Center at Jackson Memorial Hospital. She earned her medical degree from the University of Miami Miller School of Medicine and did her surgical residency at the University of Miami/Jackson Memorial Medical Center. Dr. Giron completed a clinical and research fellowship in breast cancer at Memorial Sloan-Kettering Cancer Center in New York City and a breast surgery fellowship at Columbia University College of Physicians and Surgeons at St. Luke’s-Roosevelt and Beth Israel Medical Centers, also in New York City.
Dr. Giron has published several research articles in medical
journals. She is fluent in English and Spanish.
ANNA VOLTURA, M.D.
Anna Voltura, M.D., is a Board-certified breast cancer surgeon and clinical director at Baptist Health Breast Center. Previously, she was medical director of the Christus St. Vincent Regional Medical Center’s Breast Institute in Santa Fe, New Mexico. She earned her medical degree from the University of New Mexico School of Medicine in Albuquerque, where she also completed her surgical residency. Dr. Voltura was a breast surgery fellow at Johns Hopkins University, specializing in the newest techniques for the diagnosis, surgical treatment and medical management of breast cancer. She is the author of breast cancer research articles published in medical journals.
She is fluent in English and Spanish.
MARIA PILAR MARTINEZ, M.D.
Board-certified radiologist Maria Pilar Martinez, M.D., is medical director of breast imaging and intervention at Baptist Health Breast Center. Dr. Martinez has extensive experience in all areas of breast imaging and intervention. She was instrumental in the development of the breast MRI and MRI-guided biopsy programs at Baptist Health, and also was an integral part of the successful launch of Baptist Health’s digital mammography program, which, at the time, was the largest implementation in the country.
More recently, with the opening of Baptist Health Breast Center, Dr. Martinez’s focus is on breast PET, an innovative technology used in evaluating breast cancer patients. Dr. Martinez earned her medical degree from Universidad Central del Caribe in Puerto Rico before completing an internship in internal medicine at Cabrini Medical Center in New York City, as well as her residency in diagnostic radiology at Columbia University’s College of Physicians and Surgeons-Harlem Hospital.
She also completed a fellowship in breast imaging and intervention at Mount Sinai Comprehensive Cancer Center in Miami Beach. She is fluent in English and Spanish.
JOANNA N. TEWFIK, D.O.
Board-certified radiologist Joanna Tewfik, D.O., serves as an attending radiologist at Baptist Health Breast Center, Baptist Hospital of Miami and South Miami Hospital. She is a dedicated women's imaging specialist performing mammography and breast ultrasound tests, biopsies and MRIs, and previously served as a clinical instructor at the University of Virginia. Her research projects have focused on detecting cancer using MRI, PET and other advanced imaging modalities.
Dr. Tewfik earned her medical degree from the University of Medicine and Dentistry of New Jersey. She completed internships at Westchester General Hospital in Miami and at Pennsylvania Hospital in Philadelphia before serving a fellowship in breast imaging at the University of Virginia.
CRISTINA VIEIRA, M.D.
Board-certified radiologist Cristina Vieira, M.D., is an attending radiologist at Baptist Health Breast Center. Previously, she served as lead radiologist for breast imaging services at Good Samaritan Medical Center and St. Mary’s Hospital in West Palm Beach. Dr. Vieira is a graduate of Harvard Medical School. She did a surgical internship at New York University Medical Center’s Institute of Plastic Surgery, after which she completed her residency in radiology at New York University Medical Center, where she served as chief resident of radiology. Following her residency, she earned a breast imaging fellowship at the same medical center. She is fluent in English, Spanish, Portuguese and French.
