Physician

Ram Swarup Trehan, MD

According to 2025 Medicare claims, Ram Trehan, MD (NPI: 1952310070) practices hematology/oncology in the Frederick-Gaithersburg-Bethesda, MD market, with the plurality of this provider's patient population coming from Montgomery, MD. This provider's primary affiliated billing organization is AMERICAN ONCOLOGY PARTNERS PA (NPI: 1265929723; TIN: 824681345) and primary practice location at 20901-4460.

Trehan's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 579 traditional Medicare patients, billed 110,810 HCPCS/CPT codes, and received $1,253,066 in Medicare payments. The top billing code was 99204 (New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more). Part D data shows 840 prescription claims across 158 beneficiaries totaling $2,699,525 in drug costs, led by Calquence (Acalabrutinib Maleate). Open Payments data shows 71 records totaling $4,591. 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 changed little. Concurrently, Part D prescription costs have moved sharply higher in recent years, from $469,973 to $2,699,525. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.