Physician

Celalettin Ustun, MD

According to 2025 Medicare claims, Celalettin Ustun, MD (NPI: 1013010487) practices hematology in the Chicago-Naperville-Schaumburg, IL market, with the plurality of this provider's patient population coming from Cook, IL. This provider's primary affiliated billing organization is RUSH UNIVERSITY MEDICAL GROUP (NPI: 1093819542; TIN: 91-1780160) and primary practice location at 60607-3106. Ustun is affiliated with the CVS Accountable Care Organization, Inc. (ACO ID: D0061), participating under the REACH model.

Ustun's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 52 traditional Medicare patients, billed 288 HCPCS/CPT codes, and received $24,814 in Medicare payments. The top billing code was 99215 (Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more). Part D data shows 388 prescription claims across 25 beneficiaries totaling $1,447,784 in drug costs, led by Ayvakit (Avapritinib). DME data shows 37 claims. Open Payments data shows 39 records totaling $43,160. 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 lower plateau to a higher plateau, from $13,864 to $24,814. Concurrently, Part D prescription costs have moved up and down with repeated peaks and valleys, starting at $241,954 and ending at $1,447,784. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.