Physician

Ada M Winkielman, MD

According to 2025 Medicare claims, Ada Winkielman, MD (NPI: 1992798870) practices dermatology in the Oxnard-Thousand Oaks-Ventura, CA market, with the plurality of this provider's patient population coming from Ventura, CA. This provider's primary affiliated billing organization is SIMI DERMATOLOGIC MEDICAL CENTER, INC (NPI: 1144225269; TIN: 770202469) and primary practice location at 93065-1208.

Winkielman's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 359 traditional Medicare patients, billed 2,040 HCPCS/CPT codes, and received $121,879 in Medicare payments. The top billing code was 99214 (Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more). Part D data shows 267 prescription claims across 109 beneficiaries totaling $9,379 in drug costs, led by Ketoconazole (Ketoconazole). Open Payments data shows 2 records totaling $70. 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 fallen sharply in recent years, from $16,362 to $9,379. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.