Physician

Stephen Trey Mullis, M.D.

According to 2025 Medicare claims, Stephen Mullis, M.D. (NPI: 1518295641) practices rheumatology in the Greenville-Anderson-Greer, SC market, with the plurality of this provider's patient population coming from Greenville, SC. This provider's primary affiliated billing organization is PRISMA HEALTH UNIVERSITY MEDICAL GROUP (NPI: 1083787006; TIN: 571077097) and primary practice location at 29607-4032. Mullis is affiliated with the Advocate Physician Partners Accountable Care, Inc. (ACO ID: A1033) and CVS ACO (ACO ID: A5407), participating under the MSSP model.

Mullis' data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 517 traditional Medicare patients, billed 81,826 HCPCS/CPT codes, and received $914,695 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 2,717 prescription claims across 496 beneficiaries totaling $4,077,455 in drug costs, led by Enbrel Sureclick (Etanercept). Open Payments data shows 93 records totaling $2,435. 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 sharply higher in recent years, from $20,076 to $914,695. Similarly, Part D prescription costs have moved sharply higher in recent years, from $5,064 to $4,077,455. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.