Physician

David J Chalker, D.O.

According to 2025 Medicare claims, David Chalker, D.O. (NPI: 1497726293) practices general practice in the York-Hanover, PA market, with the plurality of this provider's patient population coming from York, PA. This provider's primary affiliated billing organization is CHARLES E. SCHLAGER, MD LTD (NPI: 1164515052; TIN: 23-1999123) and primary practice location at 17403-5049. Chalker is affiliated with the WellSpan Population Health Services (ACO ID: A2500), participating under the MSSP model.

Chalker's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 221 traditional Medicare patients, billed 689 HCPCS/CPT codes, and received $41,688 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 1,942 prescription claims across 407 beneficiaries totaling $158,586 in drug costs, led by Eliquis (Apixaban). DME data shows 11 claims. Open Payments data shows 169 records totaling $3,256. 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 fallen sharply in recent years, from $77,706 to $41,688. Similarly, Part D prescription costs have fallen sharply in recent years, from $610,329 to $158,586. In contrast, DME billing represents a smaller volume and fell sharply in recent years, from $13,907 to $2,673.