Physician

Joshua Daniel Rosenberg, MD

According to 2025 Medicare claims, Joshua Rosenberg, MD (NPI: 1124280896) practices hematology/oncology in the Oxnard-Thousand Oaks-Ventura, CA market, with the plurality of this provider's patient population coming from Ventura, CA. This provider's primary affiliated billing organization is THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (NPI: 1235107566; TIN: 954373071) and primary practice location at 93003-5569. Rosenberg is affiliated with the Caravan Collaborative Pathways (ACO ID: A4604), participating under the MSSP model.

Rosenberg's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 509 traditional Medicare patients, billed 145,178 HCPCS/CPT codes, and received $3,015,660 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 1,054 prescription claims across 178 beneficiaries totaling $3,889,192 in drug costs, led by Revlimid (Lenalidomide). DME data shows 13 claims. Open Payments data shows 1 records totaling $525. 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 risen steadily, from $28,561 to $3,015,660. Similarly, Part D prescription costs have moved sharply higher in recent years, from $119,980 to $3,889,192. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.