Physician

Klaas J Wierenga, MD

According to 2025 Medicare claims, Klaas Wierenga, MD (NPI: 1548363724) practices medical genetics and genomics in the Orlando-Kissimmee-Sanford, FL market, with the plurality of this provider's patient population coming from Orange, FL. This provider's primary affiliated billing organization is FLORIDA CLINICAL PRACTICE ASSOCIATION INC (NPI: 1063463768; TIN: 59-1680273) and primary practice location at 32608-1158. Wierenga is affiliated with the UF HEALTH ACO GAINESVILLE, LLC (ACO ID: A5468), participating under the MSSP model.

Wierenga's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 93 traditional Medicare patients, billed 107 HCPCS/CPT codes, and received $12,660 in Medicare payments. The top billing code was 99205 (New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more). 2023 Part D data shows 22 prescription claims totaling $2,358,894 in drug costs. Open Payments data shows 3 records totaling $7,147. 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 moved up and down with repeated peaks and valleys, starting at $4,554 and ending at $12,660. Concurrently, Part D prescription costs have moved up and down with repeated peaks and valleys, starting at $1,392,678 and ending at $2,358,894. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.