Aetna, Inc.

Beacon Health Options

 Blue Cross & Blue Shield Companies

HealthNet

Centene Corporation

CIGNA Health Plans, Inc.

ConnectiCare

Department of Defense - TRICARE

EmblemHealth, Inc.

GEHA

Harvard Pilgrim Health Care

Health First Florida, Inc.

Health Net

Health

New England

HealthPartners, Inc.

Humana, Inc.

LifeWise

Magellan Health Services Inc

Medica

MHN

New Directions

Optima Behavioral Health

Oxford

United Healthcare

Paramount Healthcare

Preferred One

Prestige Health

Choice

Priority Health

Tufts Health Plan Corp.

United Healthcare/OPTUM by United Behavioral Health

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 K

NGS

A/B MAC Jurisdiction L

Novitas

A/B MAC Jurisdiction M

Palmetto

A/B MAC Jurisdiction N

FCSO

A/B MAC Jurisdiction 15

CGS

A/B MAC

Noridian

Wisconsin Physicians Service Insurance Corporation

Highmark  Medicare

Medicaid of Vermont