Physician

Brian Jay Shimkus, MD

According to 2025 Medicare claims, Brian Shimkus, MD (NPI: 1730164591) practices medical oncology in the Austin-Round Rock-San Marcos, TX market, with the plurality of this provider's patient population coming from Williamson, TX. This provider's primary affiliated billing organization is AMERICAN ONCOLOGY PARTNERS PA (NPI: 1265929723; TIN: 824681345) and primary practice location at 78626-7642.

Shimkus' data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 522 traditional Medicare patients, billed 332,038 HCPCS/CPT codes, and received $7,424,053 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 2,386 prescription claims across 385 beneficiaries totaling $6,884,413 in drug costs, led by Erleada (Apalutamide). DME data shows 132 claims. Open Payments data shows 189 records totaling $4,292. 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 risen steadily, from $3,551,640 to $7,424,053. Similarly, Part D prescription costs have risen steadily, from $1,277,778 to $6,884,413. In contrast, DME billing represents a smaller volume and started with an early spike, then settled into a lower baseline, moving from $11,772 to $10,195.