Physician

Diane Duyen T Nguyen, DO

According to 2025 Medicare claims, Diane Nguyen, DO (NPI: 1023233756) practices medical oncology in the McAllen-Edinburg-Mission, TX market, with the plurality of this provider's patient population coming from Hidalgo, TX. This provider's primary affiliated billing organization is THE UNIVERSITY OF TEXAS RIO GRANDE VALLEY (NPI: 1477960730; TIN: 465292740) and primary practice location at 78550-8969.

Nguyen's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 20 traditional Medicare patients, billed 232 HCPCS/CPT codes, and received $37,668 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 293 prescription claims across 93 beneficiaries totaling $266,351 in drug costs, led by Xtandi (Enzalutamide). Open Payments data shows 8 records totaling $269. 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 up and down with repeated peaks and valleys, starting at $22,686 and ending at $37,668. Concurrently, Part D prescription costs have risen steadily, from $5,702 to $266,351. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.