Physician

Stephanie Diane Flagg, M.D.

According to 2025 Medicare claims, Stephanie Flagg, M.D. (NPI: 1780682815) practices rheumatology in the Philadelphia, PA market, with the plurality of this provider's patient population coming from Delaware, PA. This provider's primary affiliated billing organization is BRYN MAWR MEDICAL SPECIALISTS ASSOCIATION (NPI: 1841226099; TIN: 23-1714249) and primary practice location at 19010-3200. Flagg is affiliated with the Aledade 101 Regional MSSP (ACO ID: A5216), participating under the MSSP model.

Flagg's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 489 traditional Medicare patients, billed 166,614 HCPCS/CPT codes, and received $1,952,341 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 2,564 prescription claims across 431 beneficiaries totaling $2,217,941 in drug costs, led by Skyrizi Pen (Risankizumab-Rzaa). Open Payments data shows 90 records totaling $2,092. 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 $891,220 to $1,952,341. Similarly, Part D prescription costs have moved from a lower plateau to a higher plateau, from $873,187 to $2,217,941. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.