Physician

Richard D Zak, MD

According to 2025 Medicare claims, Richard Zak, MD (NPI: 1467422451) practices ophthalmology in the Elgin, IL market, with the plurality of this provider's patient population coming from Kane, IL. This provider's primary affiliated billing organization is AURORA EYE CLINIC LTD (NPI: 1992776322; TIN: 36-3500115) and primary practice location at 60506-1481. Zak is affiliated with the CVS Accountable Care Organization, Inc. (ACO ID: D0061), participating under the REACH model.

Zak's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 296 traditional Medicare patients, billed 5,363 HCPCS/CPT codes, and received $746,999 in Medicare payments. The top billing code was J0177 (Injection, aflibercept hd, 1 mg). Part D data shows 169 prescription claims across 57 beneficiaries totaling $21,977 in drug costs, led by Brimonidine Tartrate (Brimonidine Tartrate). Open Payments data shows 11 records totaling $481. 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 changed little. Concurrently, Part D prescription costs have moved up and down with repeated peaks and valleys, starting at $23,925 and ending at $21,977. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.