Physician

Wallace Lock, M.D.

According to 2025 Medicare claims, Wallace Lock, M.D. (NPI: 1437545761) practices family practice in the Memphis, TN-MS-AR market, with the plurality of this provider's patient population coming from Crittenden, AR. This provider's primary affiliated billing organization is SOUTHEASTERN EMERGENCY PHYSICIANS LLC (NPI: 1356379382; TIN: 621538114) and primary practice location at 72301-2017. Lock is affiliated with the Mercy Health ACO, LLC (ACO ID: A2616), participating under the MSSP model.

Lock's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 311 traditional Medicare patients, billed 517 HCPCS/CPT codes, and received $40,578 in Medicare payments. The top billing code was 99285 (Emergency department visit with high level of medical decision making). Part D data shows 401 prescription claims across 190 beneficiaries totaling $7,662 in drug costs, led by Albuterol Sulfate Hfa (Albuterol Sulfate). 2021 DME data shows 11 claims. Open Payments data shows 4 records totaling $432. 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 $4,189 to $40,578. Concurrently, Part D prescription costs have moved up and down with repeated peaks and valleys, starting at $1,494 and ending at $7,662. For DME billing, reported payments did not follow a clear longitudinal pattern.