Physician

Aileen Wendy Zhen, DO

According to 2025 Medicare claims, Aileen Zhen, DO (NPI: 1174985998) practices nephrology in the Springfield, IL market, with the plurality of this provider's patient population coming from Sangamon, IL. This provider's primary affiliated billing organization is SPRINGFIELD CLINIC, LLP (NPI: 1780638478; TIN: 370701328) and primary practice location at 62702-4902. Zhen is affiliated with the Springfield Clinic ACO, LLC (ACO ID: A2587) and IRCCO (ACO ID: A2619), participating under the MSSP model.

Zhen's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 437 traditional Medicare patients, billed 1,356 HCPCS/CPT codes, and received $114,992 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 2,174 prescription claims across 327 beneficiaries totaling $203,541 in drug costs, led by Farxiga (Dapagliflozin Propanediol). DME data shows 144 claims. Open Payments data shows 7 records totaling $149. 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 has fewer than 5 years of reported Medicare Part B carrier billing data, so a reliable trend cannot be assigned. Concurrently, Part D prescription costs have risen steadily, from $1,038 to $203,541. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.