

Oncology
Gregory Masters, MD
Associate Professor of Medicine, Sidney Kimmel Medical College at Thomas Jefferson University
Dr. Gregory A. Masters, MD, FACP, FASCO is a medical oncologist at Medical Oncology Hematology Consultants and the Helen F. Graham Cancer Center & Research Institute at ChristianaCare in Newark, Delaware, specializing in lung cancer, esophageal, gastrointestinal, and head and neck cancers. He received his medical degree from Northwestern University Feinberg School of Medicine in 1990, completed his internal medicine residency at the Hospital of the University of Pennsylvania, and a fellowship in
35+
Years in Practice
Credentials
Board Certifications
- American Board of Internal Medicine
- American Board of Internal Medicine (Medical Oncology)
Peer Recognition
- Castle Connolly — Top Doctor
2002-2026 (25 years)
- Healthgrades — Healthgrades Honor Roll
Recognition & Leadership
Awards & Honors
- Castle Connolly America's Top Doctor
Clinical Focus
Subspecialties
Conditions & Treatments
Practice Details
Hospital Affiliations
- Center for Heart & Vascular Health at Christiana Hospital
- Bayhealth Medical Center
Experience
35+ years in practice