Christina Weltz, MD

From routine appointments to emergency services, it’s important to get the care you need—when you need it. But we understand you may be delaying your health needs over concerns about safety. At Mount Sinai, our doctors, nurses, and staff members are working continuously to ensure your safety so that you don't have to put your health on hold.

Dr. Tiersten is a Professor in the Division of Hematology and Medical Oncology and a member of the Breast Cancer Medical Oncology Program. Dr. Tiersten sees patients in the Dubin Breast Center. She works collaboratively with Mount Sinai breast surgeons, radiation oncologists, radiologists, and other related subspecialists to provide care to breast cancer patients and conduct breast cancer research. Dr. Tiersten has extensive experience participating clinical trials, as well as being the Principal Investigator for national studies.

I am a surgeon who specializes in the care and treatment of patients with breast cancer, and those at increased risk for breast cancer. I have extensive experience with sentinel lymph node biopsy, nipple sparing mastectomy, and the newest techniques in breast cancer surgery for both invasive breast cancer and DCIS. I am the author of a variety of publications on the role of sentinel lymph node biopsy in breast cancer, the role of MRI in patients at high risk for breast cancer, and I have received a Komen Foundation Grant investigating the role of PET scanning in breast cancer. I recently completed an NCI funded clinical trial investigating the effects of the COX2 inhibitor, Celebrex, on breast cancer tissue. I am a member of many professional organizations including the Society of Surgical Oncology, the American Society of Breast Diseases, the American Society of Breast Surgeons, and the American College of Surgeons Oncology Group.