UnitedHealthcare MA

UnitedHealthcare dominates the 2026 Medicare Advantage market with 8.9 million members, the largest MA plan enrollment in the US. Its parent UnitedHealth Group generates $95B in MA revenue alone, a figure 66% higher than #2 Humana’s adjusted health plan revenues. The plan offers supplemental dental, vision, and fitness coverage through the Renew Active program, available in all 50 states. This nationwide access provides an infrastructure advantage over regional entrants, ensuring consistent member benefits from coast to coast.