Marcus Messmer

With 13 years of practice, Marcus Messmer is an established hematology/oncology provider after earning their medical degree at Johns Hopkins University School Of Medicine in 2014. Marcus currently practices across 7 facilities, including Temple University Hospital in Philadelphia, Pennsylvania. Their National Provider Identifier (NPI) is 1285070490, 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.

Marcus Messmer's practice is located in ZIP 19140 (Philadelphia, Pennsylvania), which has an overall CartoChrome Healthcare Access Score of 96/100 (Healthcare Paradise). Patients in this area have comparatively strong access to primary care, specialists, and hospital services.

CMS Medicare data shows Marcus Messmer as a lower-volume hematology/oncology provider, treating approximately 141 Medicare beneficiaries and delivering 338 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 Marcus Messmer received $581 in industry payments in 2023. Payments at this scale are typical for most practicing physicians and generally reflect routine educational activities.