Physician

Darren Lloyd Grunwaldt, D.O.

According to 2025 Medicare claims, Darren Grunwaldt, D.O. (NPI: 1437371788) practices osteopathic manipulative therapy in the Muskegon-Norton Shores, MI market, with the plurality of this provider's patient population coming from Muskegon, MI. This provider's primary affiliated billing organization is MERCY SPECIALTY SERVICES (NPI: 1629010384; TIN: 383589214) and primary practice location at 49444-1886.

Grunwaldt's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 62 traditional Medicare patients, billed 298 HCPCS/CPT codes, and received $16,410 in Medicare payments. The top billing code was 99222 (Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes). Part D data shows 15 prescription claims totaling $80 in drug costs. No Open Payments records. 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 up and down with repeated peaks and valleys, starting at $6,380 and ending at $16,410. Concurrently, this provider has fewer than 5 years of reported Part D prescription costs data, so a reliable trend cannot be assigned. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.