One Care Plans

Find your plan below and contact them directly to enroll.

Find plans in your county 

See plans in your area: Hover over your county to see how many One Care plans are available. 

Filter by plan: Select a plan and the map will show the counties where that plan is offered. The legend under the map explains what each color means.

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Commonwealth Care Alliance One Care

Website	CCA One Care
Enrollment Options Contact	[phone], TDD/TTY: 711 Hours of Operation: 8:00 a.m. - 8:00 p.m.
Member Portal	CCA Member Portal
Member Materials	Brochure Member Handbook Provider and Pharmacy Directory Formulary (List of Covered Drugs)
Member Services Contact	[phone], TDD/TTY: 711 Hours of Operation: 8:00 a.m. - 8:00 p.m.
24/7 Clinical advice line	[phone], TDD/TTY: 711
Pharmacy Benefit Manager	CVS Caremark
Dental Benefit Manager	SKYGEN
Vision Benefit Manager	EyeMed
Transportation Benefit Manager	Coordinated Transportation Solutions
Counties Served	Barnstable, Berkshire, Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex, Norfolk, Plymouth, Suffolk, Worcester

Mass General Brigham One Care

Website	MGBHP One Care
Enrollment Options Contact	[phone], TDD/TTY: 711 Hours of Operation: 8:00 a.m. - 8:00 p.m.
Member Portal	MGBHP Member Portal
Member Materials	Brochure Brochure (Spanish) Member Handbook Provider and Pharmacy Directory Formulary (List of Covered Drugs)
Member Services Contact	[phone], TDD/TTY: 711 Hours of Operation: 8:00 a.m. - 8:00 p.m. [e-mail]
24/7 Clinical advice line	[phone] (select option for 24hr Nurse Advice Line), TDD/TTY: 711
Pharmacy Benefit Manager	OptumRx
Dental Benefit Manager	DentaQuest
Vision Benefit Manager	EyeMed
Transportation Benefit Manager	Coordinated Transportation Solutions
Counties Served	Bristol, Dukes, Essex, Middlesex, Nantucket, Norfolk, Plymouth, Suffolk

Molina One Care

Website	Moline One Care
Enrollment Options Contact	[phone], TDD/TTY: 711 Hours of Operation: 8:00 a.m. - 8:00 p.m.
Member Portal	Moline Member Portal
Member Materials	Brochure Member Handbook Provider and Pharmacy Directory Formulary (List of Covered Drugs)
Member Services Contact	[phone], TDD/TTY: 711 Hours of Operation: 8:00 a.m. - 8:00 p.m.
24/7 Clinical advice line	[phone] (ask for Nurse Advice Line), TDD/TTY: 711
Pharmacy Benefit Manager	CVS Caremark
Dental Benefit Manager	DentaQuest
Vision Benefit Manager	Vision Service Plan
Transportation Benefit Manager	Modivcare
Counties Served	Bristol, Essex, Hampden, Hampshire, Middlesex, Norfolk, Plymouth, Suffolk, Worcester

Tufts Health One Care

Website	Tufts One Care
Enrollment Options Contact	[phone], TDD/TTY: 711 Hours of Operation: 8:00 a.m. - 8:00 p.m.
Member Portal	Tufts Member Portal
Member Materials	Brochure Member Handbook Formulary (List of Covered Drugs)
Member Services Contact	[phone], TDD/TTY: 711 Hours of Operation: 8:00 a.m. - 8:00 p.m.
24/7 Clinical advice line	[phone], TDD/TTY: [phone]
Pharmacy Benefit Manager	Optum Rx
Dental Benefit Manager	DentaQuest
Vision Benefit Manager	EyeMed Vision Care
Transportation Benefit Manager	Coordinated Transportation Solutions
Counties Served	Barnstable, Bristol, Essex, Hampden, Hampshire, Middlesex, Norfolk, Plymouth, Suffolk, Worcester

UnitedHealthcare One Care

Website	UHC One Care
Enrollment Options Contact	[phone], TDD/TTY: 711 Hours of Operation: 8:00 a.m. - 8:00 p.m.
Member Portal	UHC member Portal
Member Materials	Brochure Member Handbook Provider and Pharmacy Directory Formulary (List of Covered Drugs)
Member Services Contact	[phone]. TDD/TTY: 711 Hours of Operation: 8:00 a.m. - 8:00 p.m.
24/7 Clinical advice line	[phone], TDD/TTY: 711
Pharmacy Benefit Manager	UnitedHealthcare
Dental Benefit Manager	UHC Dental Benefit Partners
Vision Benefit Manager	March Vision Care
Transportation Benefit Manager	SafeRide
Counties Served	Bristol, Essex, Hampden, Hampshire, Middlesex, Norfolk, Plymouth, Suffolk, Worcester

Date published:	October 1, 2025
Last updated:	March 24, 2026