Physician

Gregory S Willis, DO

According to 2025 Medicare claims, Gregory Willis, DO (NPI: 1184605677) practices gynecologist/oncologist in the York-Hanover, PA market, with the plurality of this provider's patient population coming from York, PA. This provider's primary affiliated billing organization is PINNACLE HEALTH MEDICAL SERVICES (NPI: 1992006407; TIN: 251709054) and primary practice location at 17408-8815.

Willis' data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 127 traditional Medicare patients, billed 404 HCPCS/CPT codes, and received $56,980 in Medicare payments. The top billing code was 99205 (New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more). Part D data shows 234 prescription claims across 77 beneficiaries totaling $341,696 in drug costs, led by Eliquis (Apixaban). DME data shows 11 claims. Open Payments data shows 2 records totaling $217. You can download detailed data with all billing codes (2015-2024). For more recent data, please contact us.

Over the past 10 years, this provider's Medicare Part B carrier billing has declined steadily, from $103,380 to $56,980. In contrast, Part D prescription costs have risen steadily, from $15,951 to $341,696. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.