Physician
Ali A Baaj, M.D.
According to 2025 Medicare claims, Ali Baaj, M.D. (NPI: 1417148800) practices neurosurgery in the Chicago-Naperville-Schaumburg, IL market, with the plurality of this provider's patient population coming from Cook, IL. This provider's primary affiliated billing organization is NORTHWESTERN MEDICAL FACULTY FOUNDATION (NPI: 1346235314; TIN: 363097297) and primary practice location at 60611-2908. Baaj is affiliated with the NewYork Quality Care (ACO ID: A2571), participating under the MSSP model.
Baaj's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 84 traditional Medicare patients, billed 257 HCPCS/CPT codes, and received $77,003 in Medicare payments. The top billing code was 63047 (Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment). 2020 Part D data shows 18 prescription claims across 11 beneficiaries totaling $472 in drug costs. 2020 DME data shows 24 claims. Open Payments data shows 27 records totaling $8,954. 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 $99,011 to $77,003. In contrast, Part D prescription costs have moved sharply higher in recent years, from $303 to $472. For DME billing, reported payments did not follow a clear longitudinal pattern.