Dr. Gregory Masters, MD

With 20 years of practice, Dr. Gregory Masters is an established medical oncology provider, MD, after earning their medical degree at Northwestern University Feinberg Medical School in 1990. Dr. currently practices across 6 facilities, including Christiana Care Health Services Inc in Newark, Delaware. Their National Provider Identifier (NPI) is 1508834680, and the profile below combines data from CMS NPPES, Medicare billing records, the HHS OIG exclusion list, and — where available — CMS Open Payments, Medicare Utilization, and Part D prescriber summaries.

CMS Medicare data shows Dr. Gregory Masters as a lower-volume medical oncology provider, treating approximately 450 Medicare beneficiaries and delivering 107K services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.

Under the Physician Payments Sunshine Act, CMS reports that Dr. Gregory Masters received $147 in industry payments in 2023. Payments at this scale are typical for most practicing physicians and generally reflect routine educational activities.