Physician

Abundio Castillo, FNP

According to 2025 Medicare claims, Abundio Castillo, FNP (NPI: 1053888743) practices nurse practitioner in the Bakersfield-Delano, CA market, with the plurality of this provider's patient population coming from Kern, CA. This provider's primary affiliated billing organization is WEST SIDE HEALTH CARE DISTRICT (NPI: 1992142277; TIN: 956003484) and primary practice location at 93268-3606.

Castillo's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 69 traditional Medicare patients, billed 154 HCPCS/CPT codes, and received $2,804 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 2,301 prescription claims across 298 beneficiaries totaling $429,762 in drug costs, led by Jardiance (Empagliflozin). DME data shows 71 claims. Open Payments data shows 6 records totaling $103. 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 started with an early spike, then settled into a lower baseline, moving from $8,474 to $2,804. In contrast, Part D prescription costs have moved sharply higher in recent years, from $11,458 to $429,762. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.