Physician

Adrienne Fregia, MD

According to 2025 Medicare claims, Adrienne Fregia, MD (NPI: 1477653111) practices gastroenterology 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 SPECIALTY PHYSICIANS OF ILLINOIS, LLC (NPI: 1124075676; TIN: 050540914) and primary practice location at 60461-1010. Fregia is affiliated with the Franciscan ACO, Inc. (ACO ID: A2550), participating under the MSSP model.

Fregia's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 302 traditional Medicare patients, billed 535 HCPCS/CPT codes, and received $51,905 in Medicare payments. The top billing code was 45378 (Diagnostic exam of large bowel using a flexible endoscope). Part D data shows 821 prescription claims across 308 beneficiaries totaling $29,238 in drug costs, led by Mesalamine (Mesalamine). Open Payments data shows 9 records totaling $370. 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 $117,282 to $51,905. Similarly, Part D prescription costs started with an early spike, then settled into a lower baseline, moving from $194,883 to $29,238. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.