A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).
Learn more about Dr. Gregory Sibley:
View the full profile to get information on:
- What's important to you
View full profile
- Currently 4 of 4 stars
The overall average patient rating of Dr. Gregory Sibley is Excellent.
|Ease of Appointment||
|Spends Time with Me||
|Follows Up After Visit||
Specialties & Research
Dr. Gregory Sibley, MD is board certified in Radiation Oncology.
- He has special expertise in 7 areas:
- Breast Cancer
- Clinical Research
- Head and Neck Cancer
- Lung Cancer
- Lung Cancer (Non-Small-Cell Lung Carcinoma)
- Radiation Injuries
Education & Awards
Dr. Sibley graduated from University of Michigan Medical School, Ann Arbor. He has 4 awards.
Dr. Sibley has 1 hospital affiliations:
- Sibley Memorial Hospital
Accepted Insurance Plans
Dr. Sibley accepts these health insurances in at least one office:
- United Healthcare - 18 plans
- CareFirst - 3 plans
- Great-West Healthcare - 2 plans
- Humana - 6 plans
- Cigna - 4 plans
Similar doctors nearby
- Additional Information
- Where does Dr. Gregory Sibley practice?
Dr. Gregory Sibley practices Radiation Oncology near Washington, DC.
See Washington Radiation Oncologists.