Physician

Jun Frank Sun, M.D.

According to 2025 Medicare claims, Jun Sun, M.D. (NPI: 1306097209) practices hematology/oncology in the Washington, DC-MD market, with the plurality of this provider's patient population coming from Prince Georges, MD. This provider's primary affiliated billing organization is MARYLAND ONCOLOGY HEMATOLOGY, P.A. (NPI: 1821271032; TIN: 113652573) and primary practice location at 20613-3045.

Sun's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 954 traditional Medicare patients, billed 233,651 HCPCS/CPT codes, and received $3,507,784 in Medicare payments. The top billing code was 99214 (Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more). Part D data shows 1,111 prescription claims across 185 beneficiaries totaling $3,624,823 in drug costs, led by Pomalyst (Pomalidomide). 2022 DME data shows 11 claims. Open Payments data shows 153 records totaling $3,210,515. 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 from a lower plateau to a higher plateau, from $1,148,762 to $3,507,784. Similarly, Part D prescription costs have risen steadily, from $224,878 to $3,624,823. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.