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Gregory A. Masters, MD

Medical Oncologist

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Conditions Treated Laryngeal Cancer Lung Cancer Ovarian Cancer Pericardial Mesothelioma Pleural Mesothelioma Testicular Mesothelioma

Hospitals & Clinics

specialties & services

  • Bio & Insurance Information

    Dr. Masters completed the Northwestern University Feinberg School of Medicine in Chicago in 1990. He finished his residency at the Hospital of the University of Pennsylvania in Philadelphia and moved to the University of Chicago for his fellowship. Dr. Masters is currently a practicing medical oncologist at the Helen F. Graham Cancer Center, where he specializes in cancer treatment of different types, including mesothelioma.

  • Education & Training


    Northwestern University–Feinberg School of Medicine, Chicago, IL - 1990

    Medical School


    Hospital of the University of Pennsylvania, Philadelphia, PA



    University of Chicago Hospitals, Chicago, IL


  • Board Certifications

    American Board of Internal Medicine

    American Board of Internal Medicine - Oncology

  • Hospital & Practice

    Helen F. Graham Cancer Center

    Languages: English/Spanish


    4701 Ogletown Stanton Rd

    Newark, Delaware 19713

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  • Publications & Memberships

    Dr. Gregory A. Masters has contributed to 3 publications.

    Epithelioid inflammatory myofibroblastic sarcoma: a case report.

    Sarmiento, D. E.,Clevenger, J. A.,Masters, G. A.,Bauer, T. L.,Nam, B. T.; J Thorac Dis.

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    Chemotherapy With or Without Maintenance Sunitinib for Untreated Extensive-Stage Small-Cell Lung Cancer: A Randomized, Double-Blind, Placebo-Controlled Phase II Study-...

    Ready, N. E.,Pang, H. H.,Gu, L.,Otterson, G. A.,Thomas, S. P.,Miller, A. A.,Baggstro

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    Standard-dose versus high-dose conformal radiotherapy with concurrent and consolidation carboplatin plus paclitaxel with or without cetuximab for patients with stage I...

    Bradley, J. D.,Paulus, R.,Komaki, R.,Masters, G.,Blumenschein, G.,Schild, S.,Bogart,

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    American College of Chest Physicians

    American College of Physicians

    American Society of Clinical Oncology

    Cancer and Leukemia Group B

    Eastern Cooperative Oncology Group

    International Association for the Study of Lung Cancer

    Medical Society of Delaware

    Radiation Therapy Oncology Group

Verified Patient Reviews

Rate This Doctor

May 25, 2016

by Larry T.

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“I went to see Dr. Gregory and I was diagnosed with stage 4 colon cancer. After just a round of chemo by Dr. Gregory I am currently cancer free. ”

February 19, 2014

by Mary Anne Pugh

Wait Time




“Fantastic doctor and staff I would recommend him to anyone. I love them all at Helen Graham Center, they really care. ”