Physician

Spencer Onishi, D.O.

According to 2025 Medicare claims, Spencer Onishi, D.O. (NPI: 1194119164) practices ophthalmology in the Williamsport, PA market, with the plurality of this provider's patient population coming from Lycoming, PA. This provider's primary affiliated billing organization is BERNSTEIN, HILLIKER, HARTZELL EYE CENTER, LLP (NPI: 1942390745; TIN: 232196399) and primary practice location at 17810-9260. Onishi is affiliated with the Keystone ACO (ACO ID: A1552), participating under the MSSP model.

Onishi's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 549 traditional Medicare patients, billed 1,464 HCPCS/CPT codes, and received $134,154 in Medicare payments. The top billing code was 66984 (Removal of cataract with insertion of prosthetic lens). Part D data shows 789 prescription claims across 253 beneficiaries totaling $72,593 in drug costs, led by Restasis (Cyclosporine). Open Payments data shows 3 records totaling $212. 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 sharply higher in recent years, from $46,460 to $134,154. Concurrently, Part D prescription costs have moved up and down with repeated peaks and valleys, starting at $19,627 and ending at $72,593. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.