Elias Obeid, MD, MPH

Elias Obeid, MD, MPH

Clinical Locations

Primary Location

Fox Chase Cancer Center
333 Cottman Avenue
Philadelphia, PA 19111


Interim Chief, Division of Breast Medical Oncology

Assistant Professor, Department of Clinical Genetics

Director, Breast, Ovarian, and Prostate Cancer Risk Assessment

Breast Cancer TRDG Member

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 and Training

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

  • Main Line Today Top Doctors, 2019
  • Abbott-Gonzalez Research Fellow Award, University of Chicago, 2012
  • American College of Physicians - Connecticut (ACP-CT) Award for Volunteerism/Judge Research Awards, 2008
  • First Annual Award: Service for Mission, Hospital of Saint Raphael, New Haven, CT, 2008
Patient Stories

Tracy Gatto

Breast Cancer

Tracy Gatto

Breast Cancer

In 2011 at the age of 28, Tracy Gatto learned she had breast cancer after she discovered a lump in her breast. She sought a second opinion from a specialist at Fox Chase Cancer Center and immediately felt that was where she wanted to seek treatment. Tracy underwent chemotherapy, followed by surgery and reconstruction. Because of the BRCA1 genetic mutuation she most likely inherited from her father, Tracy had increased risk of ovarian cancer. She worked with the Risk Assessment Program, where she was referred to a surgical gynecologist to discuss the possibility of undergoing a prophylactic oophorectomy to remove her ovaries. Today, Tracy is doing well and even took part in Paws for the Cause, an annual dog walk and fundraiser hosted by Fox Chase, to give back. "It really takes a special person to work at Fox Chase. Everyone I met had a smile on their face and was incredibly positive," she said. "As a receptionist, I knew it can be a struggle to stay positive all day long. It’s hard to make cancer a positive experience, but I never left feeling discouraged."

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 to 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 is in tumor microenvironment and immunotherapy.


Additional Publications




Our Patient Satisfaction Rating is an average of all responses to care provider related questions from our nationally-recognized Press Ganey Patient Satisfaction Survey. Learn more.


4.9 / 5.0


  • 5.0
  • 4.9
  • 5.0
  • 4.9
  • 4.9


  • 5.0
    September 15, 2019
    Dr. Obeid is the SMARTEST, kindness, most caring dr. I've ever had. He never rushes & take time with me.
  • 5.0
    September 15, 2019
    Dr. Obeid is an exceptional provider. He professional and shows empathy and listens to my concerns.
  • 5.0
    August 25, 2019
    Dr. Obeid explained everything well like his approach to treatment satisfied with her plan & approach to my care. He's very kind, knowledgeable.
  • 5.0
    August 16, 2019
    dr Obeid is excellent!!!! there is no better!
  • 5.0
    August 13, 2019
    Dr. Obeid and his staff are excellent. I have recommended him several times.
  • 5.0
    August 11, 2019
    Dr. Obeid and his staff of Fellows, and Nurses are so extremely professional and helpful. I feel like everyone is extended family. I thank them all so much for the concern and care that they give.
  • 5.0
    August 07, 2019
    I felt very well taken care of by Dr. Obeid and by his nurse [...]. They were respectful, showed concern & helped me understand the plan & made it happen. Also the radiologist & technicians were wonderful.
  • 5.0
    August 05, 2019
    Very courteous & professional and caring for all my needs. All great.
  • No Star Ratings Available July 24, 2019
    All good.
  • 5.0
    July 18, 2019
    My experience at Fox Chase with the Doctors,nurse, technician. Always make me comfortable.I know I am in the best place for Cancer care.
  • 5.0
    July 18, 2019
    Dr. Obied is so friendly and nice, and I trust him completely. he answers all of my questions and does not seem annoyed like other doctors... I am do glad I can follow up with him as needed.
  • 5.0
    July 14, 2019
    Very happy with Dr. Obeid & [...].

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