Dr. John Maul, MD

With 20 years of practice, Dr. John Maul is an established medical oncology provider, MD, after earning their medical degree at Medical College Of Wisconsin in 1999. Dr. currently practices across 5 facilities, including Aurora Medical Center in Grafton, Wisconsin. Their National Provider Identifier (NPI) is 1326014382, 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. John Maul as a lower-volume medical oncology provider, treating approximately 432 Medicare beneficiaries and delivering 1K services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.