Medical Billing Company in Virginia | Headquartered in Charlottesville

Virginia consolidated its Medicaid managed care system in October 2023, merging the former Medallion 4.0 and Commonwealth Coordinated Care Plus programs into a single unified program called Cardinal Care. As of the 2026 contract year, Cardinal Care operates through five Managed Care Organizations: Aetna Better Health of Virginia, Anthem HealthKeepers Plus, Humana Healthy Horizons, Sentara Health Plans, and UnitedHealthcare of the Mid-Atlantic. Humana joined the program in mid-2025 after Molina Healthcare exited, and members previously enrolled with Molina were automatically transitioned to Humana. Cardinal Care covers more than 1.7 million Virginians, and open enrollment windows are staggered by region rather than running on a single statewide calendar. The Charlottesville and Western Halifax region, where Mediknocx is based, runs its 2026 open enrollment from August 19 through October 31.

Cardinal Care extends postpartum coverage for 12 months after pregnancy under federal rules Virginia has implemented, and children enrolled in the program receive 12 months of continuous eligibility regardless of mid-year income changes. Starting in January 2027, Virginia plans to introduce community engagement requirements for expansion adults ages 19 to 64, a change billing teams should watch for its effect on eligibility verification. Mediknocx's team tracks claims by MCO across all five Cardinal Care plans and stays current on region-specific enrollment timing, since a practice's local open enrollment window can affect patient coverage continuity even when the underlying benefit hasn't changed.