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  • This page, One Care Provider Contact Information, is   offered by
  • MassHealth

One Care Provider Contact Information

Resources for One Care providers

Commonwealth Care Alliance One Care

Website: Commonwealth Care Alliance
Phone Number: (866) 420-9332
Email Address: providerrelations@commonwealthcare.org

Mass General Brigham One Care

Website: MGBHP
Phone Number: (855) 444-4647
Email Address: HealthPlanProvidersService@mgb.org

Molina One Care

Website: Molina
Phone Number: (855) 838-7999
Email Address: SWHProviderRelations@molinahealthcare.com

Tufts Health One Care

Website: Tufts
Phone Number: (888) 257-1985

UnitedHealthcare Connected

Website: UHC
Phone Number: (877) 790-6543

Date published: October 1, 2025

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