Physician

Mazin Fattouhi, M.D.

According to 2025 Medicare claims, Mazin Fattouhi, M.D. (NPI: 1639519309) practices internal medicine in the Lake County, IL market, with the plurality of this provider's patient population coming from Lake, IL. This provider's primary affiliated billing organization is BEST PRACTICES INPATIENT CARE, LTD. (NPI: 1073549713; TIN: 364371141) and primary practice location at 60010-1919. Fattouhi is affiliated with the Advocate Physician Partners Accountable Care, Inc. (ACO ID: A1033), participating under the MSSP model.

Fattouhi's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 2,820 traditional Medicare patients, billed 9,981 HCPCS/CPT codes, and received $998,186 in Medicare payments. The top billing code was 99236 (Initial hospital care with same-day admission and discharge with high level of medical decision making, per day, if using time, at least 85 minutes). Part D data shows 602 prescription claims across 255 beneficiaries totaling $30,980 in drug costs, led by Eliquis (Apixaban). DME data shows 42 claims. 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 sharply higher in recent years, from $59,877 to $998,186. Similarly, Part D prescription costs have moved from a lower plateau to a higher plateau, from $4,794 to $30,980. In contrast, DME billing represents a smaller volume and moved up and down with repeated peaks and valleys, starting at $290 and ending at $2,702.