Physician

William M Merritt, MD

According to 2025 Medicare claims, William Merritt, MD (NPI: 1609070143) practices gynecologist/oncologist in the Columbia, SC market, with the plurality of this provider's patient population coming from Richland, SC. This provider's primary affiliated billing organization is SOUTH CAROLINA ONCOLOGY ASSOC PA (NPI: 1467406918; TIN: 570787600) and primary practice location at 29210-8239. Merritt is affiliated with the CVS ACO (ACO ID: A5407), participating under the MSSP model.

Merritt's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 510 traditional Medicare patients, billed 176,137 HCPCS/CPT codes, and received $2,251,863 in Medicare payments. The top billing code was 99213 (Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more). Part D data shows 688 prescription claims across 181 beneficiaries totaling $1,480,247 in drug costs, led by Zejula (Niraparib Tosylate). DME data shows 71 claims. Open Payments data shows 77 records totaling $1,649. 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 $1,223,695 to $2,251,863. Similarly, Part D prescription costs have risen steadily, from $131,968 to $1,480,247. In contrast, DME billing represents a smaller volume and moved up and down with repeated peaks and valleys, starting at $3,097 and ending at $691.