Physician
William George Espar, M.D.
According to 2025 Medicare claims, William Espar, M.D. (NPI: 1952396855) practices cardiology in the Michigan City-La Porte, IN market, with the plurality of this provider's patient population coming from La Porte, IN. This provider's primary affiliated billing organization is FRANCISCAN PHYSICIAN NETWORK (NPI: 1225327984; TIN: 611630276) and primary practice location at 46360-4358. Espar is affiliated with the Franciscan ACO, Inc. (ACO ID: A2550), participating under the MSSP model.
Espar's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 1,723 traditional Medicare patients, billed 3,922 HCPCS/CPT codes, and received $133,776 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 5,430 prescription claims across 776 beneficiaries totaling $817,949 in drug costs, led by Eliquis (Apixaban). 2022 DME data shows 13 claims. Open Payments data shows 105 records totaling $4,565. 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 moved from a higher plateau to a lower plateau, from $357,422 to $133,776. In contrast, Part D prescription costs have moved from a lower plateau to a higher plateau, from $324,237 to $817,949. For DME billing, this smaller-volume category moved up and down with repeated peaks and valleys, starting at $7,436 and ending at $14,762.