Nathan T. Ross, PhD

Network Participation - 2026

MississippiCAN and CHIP [Managed Care programs promulgated by the Mississippi Division of Medicaid]

• Molina Healthcare of Mississippi, Inc.
• Magnolia Health (Centene)
• TrueCare

Affordable Care Act (ACA) Marketplace [Individual plans offered on healthcare.gov]

• Ambetter from Magnolia Health (Centene)
• Molina Healthcare of Mississippi, Inc.
• UHC Marketplace (Madison only)

Medicare Advantage

• Devoted Health Plans: PPO, HMO, DSNP, CSNP
• HealthSpring Plans: PPO, HMO, DSNP
• Humana: PPO, HMO, DSNP, CSNP, ISNP
• United Healthcare Plans: PPO, HMO, DSNP, CSNP, ISNP
• WellCare (Centene) Plans: PPO, HMO, DSNP

Commercial - Group and Individual

• Aetna Plans: PPO, HMO [Includes all facilities except UMMC Madison]
• BCBSMS Plans: BlueCardPPO, State Health Plan (AHS), Federal Employee Plan (FEP)
• Cigna Plans: PPO, HMO
• United Healthcare Plans: PPO, HMO (Includes plans administered by UMR, UnitedHealth Group's wholly owned third-party administrator (TPA) subsidiary)

Transplant Only Networks

• Optum Plan: Commercial • Programs: Solid Organ, BMT, VAD
• Emerging Therapy Solutions (ETS) Plan: Commercial • Programs: Solid Organ, BMT, CAR-T, VAD
• Interlink Plan: Commercial • Programs: Solid Organ, BMT, CAR-T
• Celtic Plans: Ambetter, WellCare, Magnolia Health MississippiCAN, Magnolia Health CHIP • Programs: Solid Organ, BMT
• Cigna Lifesource Plan: Commercial • Programs: Solid Organ, BMT, CAR-T, VAD

Dental

• Avesis Plan: MississippiCAN and CHIP (TrueCare)
• Always Care/Unum Plan: Commercial

Vision

• Avesis Plan: MississippiCAN and CHIP (TrueCare)
• Always Care/Unum Plan: Commercial

Rental Networks (Utilized by self-funded employer group plans and third-party administrators (TPAs))

• Mississippi Physicians Care Network (MPCN) [If MPCN is present on a Member/Subscriber ID, all UMMC facilities and providers are in-network regardless of TPA.]
• First Choice Health Plan
• Claritev (formerly Multiplan)
• Zelis

Government Programs

• Humana Military Plan: Tricare
• United Healthcare Plan: Veterans Affairs Community Care Networks

Plans and Payors UMMC is not in-network with as of April 1, 2026

• Oscar Health Plan: ACA Marketplace [Final negotiations taking place now. Anticipate in-network participation, effective June 1, 2026.]
• Cigna (Connect EPO) Plan: ACA Marketplace
• American Health Advantage Plan: Medicare Advantage
• Patrius Health (BCBSMS) Plan: Medicare Advantage
• Aetna Plan: Medicare Advantage