Physician

Robert David Schumaker, MD

According to 2025 Medicare claims, Robert Schumaker, MD (NPI: 1679573752) practices hematology/oncology in the Knoxville, TN market, with the plurality of this provider's patient population coming from Knox, TN. This provider's primary affiliated billing organization is TENNESSEE CANCER SPECIALISTS PLLC (NPI: 1841228871; TIN: 200677400) and primary practice location at 37909-1341.

Schumaker's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 628 traditional Medicare patients, billed 214,523 HCPCS/CPT codes, and received $2,819,142 in Medicare payments. The top billing code was 99213 (Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more). Part D data shows 1,036 prescription claims across 241 beneficiaries totaling $3,247,065 in drug costs, led by Ibrance (Palbociclib). 2023 DME data shows 29 claims. Open Payments data shows 152 records totaling $33,279. 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 did not follow a clear longitudinal pattern. Concurrently, Part D prescription costs have moved from a lower plateau to a higher plateau, from $938,430 to $3,247,065. In contrast, DME billing represents a smaller volume and started with an early spike, then settled into a lower baseline, moving from $8,291 to $2,970.