Physician

Ann K Buikema Wiarda, MD

According to 2025 Medicare claims, Ann Wiarda, MD (NPI: 1538146246) practices ophthalmology in the South Bend-Mishawaka, IN-MI market, with the plurality of this provider's patient population coming from St. Joseph, IN. This provider's primary affiliated billing organization is GROSSNICKLE EYE CENTER, INC. (NPI: 1265436125; TIN: 351464840) and primary practice location at 46545-1446.

Wiarda's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 886 traditional Medicare patients, billed 7,093 HCPCS/CPT codes, and received $919,439 in Medicare payments. The top billing code was 66984 (Removal of cataract with insertion of prosthetic lens). Part D data shows 2,147 prescription claims across 552 beneficiaries totaling $128,463 in drug costs, led by Lumigan (Bimatoprost). Open Payments data shows 30 records totaling $3,861. 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 risen steadily, from $588,048 to $919,439. Similarly, Part D prescription costs have risen steadily, from $124,090 to $128,463. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.