Physician

Aaron Gurfinchel, MD

According to 2025 Medicare claims, Aaron Gurfinchel, MD (NPI: 1639392939) practices nephrology in the Chicago-Naperville-Schaumburg, IL market, with the plurality of this provider's patient population coming from Will, IL. This provider's primary affiliated billing organization is NEPHROLOGY ASSOCIATES OF NORTHERN ILLINOIS, LTD. (NPI: 1124069182; TIN: 362907660) and primary practice location at 60435-6595.

Gurfinchel's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 498 traditional Medicare patients, billed 1,939 HCPCS/CPT codes, and received $208,590 in Medicare payments. The top billing code was 99223 (Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes). Part D data shows 907 prescription claims across 193 beneficiaries totaling $77,834 in drug costs, led by Lokelma (Sodium Zirconium Cyclosilicate). 2021 DME data shows 48 claims. Open Payments data shows 3 records totaling $44. 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 declined steadily, from $312,439 to $208,590. Similarly, Part D prescription costs started with an early spike, then settled into a lower baseline, moving from $112,100 to $77,834. In contrast, DME billing represents a smaller volume and changed little.