Physician
William George Grubb, MD
According to 2025 Medicare claims, William Grubb, MD (NPI: 1093721532) practices nephrology in the Brunswick-St. Simons, GA market, with the plurality of this provider's patient population coming from Glynn, GA. This provider's primary affiliated billing organization is NEPHROLOGY AND HYPERTENSION MEDICAL ASSOCIATES PC (NPI: 1356879902; TIN: 58-1052081) and primary practice location at 31520-4787. Grubb is affiliated with the Mission Health Partners, LLC (ACO ID: A2591) and Pearl Primary Care Network, LLC (ACO ID: D0242), participating under both the MSSP and REACH models.
Grubb's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 500 traditional Medicare patients, billed 2,033 HCPCS/CPT codes, and received $175,449 in Medicare payments. The top billing code was 99223 (Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes). Part D data shows 11,267 prescription claims across 541 beneficiaries totaling $2,138,624 in drug costs, led by Krystexxa (Pegloticase). DME data shows 543 claims. Open Payments data shows 67 records totaling $1,377. 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 moved from a higher plateau to a lower plateau, from $596,665 to $175,449. Concurrently, Part D prescription costs have moved up and down with repeated peaks and valleys, starting at $1,549,750 and ending at $2,138,624. In contrast, DME billing represents a smaller volume and moved from a higher plateau to a lower plateau, from $53,382 to $12,007.