Aetna, Inc.

 Blue Cross & Blue Shield Companies

HealthNet

Centene Corporation

CIGNA Health Plans, Inc.

ConnectiCare

EmblemHealth, Inc.

Health Net

Humana, Inc.

LifeWise

Oxford

UnitedHealthcare

Preferred One

Prestige Health

Choice

Priority Health

United

Healthcare

Univera Healthcare

WellCare Corporation

Well Sense Health Plan

Mass Health

Well Sense Health Plan

NH Health

Well Sense Health Plan

Qualified Health Plans/ConnectorCare/Employer Choice Direct

A/B MAC Jurisdiction 15

CGS

A/B MAC

Noridian