Physician

Charles Earl Ahrens, M.D.

According to 2025 Medicare claims, Charles Ahrens, M.D. (NPI: 1356540827) practices ophthalmology in the Duluth, MN-WI market, with the plurality of this provider's patient population coming from St. Louis, MN. This provider's primary affiliated billing organization is ST. LUKE'S HOSPITAL OF DULUTH (NPI: 1568709970; TIN: 410714079) and primary practice location at 55746-2909. Ahrens is affiliated with the Caravan Collaborative Pathways (ACO ID: A4604), participating under the MSSP model.

Ahrens' data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 486 traditional Medicare patients, billed 4,478 HCPCS/CPT codes, and received $243,547 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 1,219 prescription claims across 369 beneficiaries totaling $134,786 in drug costs, led by Restasis (Cyclosporine). Open Payments data shows 1 records totaling $15. 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 $82,912 to $243,547. Similarly, Part D prescription costs have risen steadily, from $52,318 to $134,786. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.