Elias Obeid, MD, MPH

Elias Obeid, MD

Clinical Locations

Primary Location

Fox Chase Cancer Center
333 Cottman Avenue
Philadelphia, PA 19111


Assistant Professor, Department of Clinical Genetics

Director, Breast, ovarian, and prostate cancer risk assessment

Breast Cancer TRDG Member

Kidney, Bladder, and Prostate Cancer TRDG Member

Treatment Focus

Breast Cancer Treatment: particular interest in the treatment of triple-negative,  and hereditary breast cancers; Breast, Ovary and Prostate Cancer Risk Assessment.

Research Program

Treatment Philosophy

My philosophy in taking care of my patients is to spend as much time as possible listening to them. This allows me to know exactly what their fears and concerns are. I believe in working with our patients as a team to design the best plan of care for them,  and when appropriate for their families if we identify a susceptibility to developing cancer in that family.

Education, Training & Credentials

Educational Background

  • MPH, University of Massachusetts, Amherst, Massachusetts, 2011
  • MD, American University of Beirut School of Medicine, Beirut, Lebanon, 2000


  • Board Certified in Medical Oncology
  • Board Certified in Internal Medicine
  • Board Eligible in Hematology
  • Pennsylvania Medical License


  • American College of Physicians (Fellow)
  • Honor Society of Phi Kappa Phi
  • American Society of Clinical Oncology
  • American Society of Hematology
  • American Association for Cancer Research (AACR)

Honors & Awards

  • The Abbott-Gonzalez Research Fellow Award, University of Chicago, 2012
  • American College of Physicians - Connecticut (ACP-CT) Award for Volunteerism/Judge Research Awards, 2008
  • 1st Annual Award: Service for Mission, Hospital of Saint Raphael, New Haven, CT, 2008
Patient Stories

Tracy Gatto

Breast Cancer

Tracy Gatto

Breast Cancer

Tracy Gatto and her mom, Rita, are extremely close. After losing her father in 2008 to lung cancer, Tracy moved in with her mom. At the time, they had experienced a lot of loss to cancer. So in July 2011, when Tracy detected a lump on her right breast, this mother-daughter duo was terrified. Instinctively, Tracy, who was 28, knew something was seriously wrong. “I called my doctor right away and she sent me for a mammogram, which was followed by an ultrasound and biopsy at a community hospital,” recalls Tracy. The results confirmed her worst fears – she had breast cancer.

Research Profile

Research Program

Research Interests

  • Genetic predisposition to breast cancer and ovarian cancer
  • Genetic predisposition to prostate cancer
  • Breast cancer: novel therapeutic interventions to improve outcomes for women with breast cancer and understanding the biology of the disease

Lab Overview

The Risk Assessment Program at Fox Chase looks at your personal and possible inherited genetic factors that may put patients at higher possibility for getting cancer.  Our team comprehensively examines the risk of an individual for different cancer types, including — but not limited to — breast cancer, ovarian cancer, gastrointestinal cancers, prostate cancer, and melanoma. Such information is helpful in order to understand the chances of getting cancer and decrease the likelihood  of cancer or detect cancer early.  The Department of Clinical Genetics is built on the success of Fox Chase's Margaret Dyson Family Risk Assessment Program (now Risk Assessment Program), which Dr. Mary Daly began in 1991. A high-risk screening clinic was developed for individuals with a family history of breast or ovarian cancer.

As a member of the breast Cancer Research team at Fox Chase, we offer our patients emerging therapies for breast cancer where patients have the opportunity to enroll in national clinical trials unique to Fox Chase that target breast cancer. I am interested in the design and implementation of trials focused on the development of those new therapies. In collaboration with other scientists, we work on understanding the biology of breast cancer through translational studies. My particular interest in is tumor microenvironment and immunotherapy.


Additional Publications