Physician
Sam Mazj, MD
According to 2025 Medicare claims, Sam Mazj, MD (NPI: 1043287378) practices hematology/oncology in the Chico, CA market, with the plurality of this provider's patient population coming from Butte, CA. This provider's primary affiliated billing organization is ENLOE SPECIALTY PHYSICIANS, INC (NPI: 1306105721; TIN: 383873665) and primary practice location at 95926-2273. Mazj is affiliated with the Caravan Health ACO 50 LLC (ACO ID: A5160) and Collaborative ACO 30, LLC (ACO ID: A5483), participating under the MSSP model.
Mazj's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 865 traditional Medicare patients, billed 4,596 HCPCS/CPT codes, and received $356,061 in Medicare payments. The top billing code was 99215 (Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more). Part D data shows 2,429 prescription claims across 319 beneficiaries totaling $7,398,543 in drug costs, led by Jakafi (Ruxolitinib Phosphate). DME data shows 72 claims. Open Payments data shows 33 records totaling $25,632. 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 did not follow a clear longitudinal pattern. Concurrently, Part D prescription costs have moved sharply higher in recent years, from $1,676,604 to $7,398,543. In contrast, DME billing represents a smaller volume and started with an early spike, then settled into a lower baseline, moving from $19,310 to $7,425.