Physician

Leonard Giannone, MD

According to 2025 Medicare claims, Leonard Giannone, MD (NPI: 1245297571) practices hematology/oncology in the St. Louis, MO-IL market, with the plurality of this provider's patient population coming from Macoupin, IL. This provider's primary affiliated billing organization is SPRINGFIELD CLINIC LLP (NPI: 1215974415; TIN: 37-0701328) and primary practice location at 62626-1499. Giannone is affiliated with the Springfield Clinic ACO, LLC (ACO ID: A2587) and IRCCO (ACO ID: A2619), participating under the MSSP model.

Giannone's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 142 traditional Medicare patients, billed 36,215 HCPCS/CPT codes, and received $844,384 in Medicare payments. The top billing code was 99204 (New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more). Part D data shows 470 prescription claims across 76 beneficiaries totaling $1,536,082 in drug costs, led by Revlimid (Lenalidomide). 2022 DME data shows 31 claims. Open Payments data shows 1 records totaling $22. 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 fallen sharply in recent years, from $1,973,642 to $844,384. Concurrently, Part D prescription costs did not follow a clear longitudinal pattern. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.