Physician

Ammar Y Divan, MD

According to 2025 Medicare claims, Ammar Divan, MD (NPI: 1588977557) practices pain management in the Chicago-Naperville-Schaumburg, IL market, with the plurality of this provider's patient population coming from Du Page, IL. This provider's primary affiliated billing organization is NORTHWESTERN MEDICAL FACULTY FOUNDATION (NPI: 1346235314; TIN: 363097297) and primary practice location at 60108-2228. Divan is affiliated with the Northwestern Medicine Physician Network ACO (ACO ID: A2620) and Northwestern Medicine Health Network ACO LLC (ACO ID: A5444), participating under the MSSP model.

Divan's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 308 traditional Medicare patients, billed 4,066 HCPCS/CPT codes, and received $226,069 in Medicare payments. The top billing code was 64493 (Injection of lower or sacral spine facet joint using imaging guidance, single level). Part D data shows 185 prescription claims across 92 beneficiaries totaling $2,072 in drug costs, led by Gabapentin (Gabapentin). Open Payments data shows 77 records totaling $3,323. 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 $2,722 to $226,069. In contrast, Part D prescription costs started with an early spike, then settled into a lower baseline, moving from $47,171 to $2,072. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.