Aetna U.S. Healthcare of California Inc. - North
San Bruno, California Aetna

U.S. Healthcare of California - South
Santa Ana, California

Aetna U.S. Healthcare Inc. - Houston
Houston, Texas

Anthem Blue Cross and Blue Shield
Mason, Ohio

BlueChoice (Blue Cross and Blue Shield of Illinois)
Chicago, Illinois

BlueCross BlueShield - Rochester Area (An Excellus Company)
Rochester, New York

Blue Cross and Blue Shield of Massachusetts, Inc.
Boston, Massachusetts

CIGNA HealthCare of Arizona, Tucson
Tucson, Arizona

CIGNA HealthCare of Arizona Inc., Phoenix Staff Model
Phoenix, Arizona

Community Blue, The HMO of Blue Cross & Blue Shield of Western NY, Inc.
Buffalo, New York

FreeState Health Plan
Baltimore, Maryland

GNA HealthCare of New York and New Jersey Inc.
Rockaway, New Jersey

Group Health Cooperative of Puget Sound
Seattle, Washington

Group Health Cooperative of South Central Wisconsin
Madison, Wisconsin

Harris Methodist Texas Health Plan, Inc.
Arlington, Texas

Health Plan of the Redwoods
Santa Rosa, California

Healthcare Management Alternative, Inc.
Philadelphia, Pennsylvania

HealthPartners, Inc.
Minneapolis, Minnesota

HealthPlus of Michigan
Flint, Michigan

Highmark BlueCross BlueShield
Pittsburgh, PA

HIP Health Plan of Florida, Inc.
Hollywood, Florida

HMO Northeastern Pennsylvania, Inc. dba First Priority Health
Wilkes-Barre, Pennsylvania

Horizon Blue Cross and Blue Shield of New Jersey
Newark, New Jersey

Humana Medical Plan, Inc. - South Florida
Miramar, Florida

Kaiser Foundation Health Plan of Colorado, Inc.
Denver, Colorado

Kaiser Foundation Health Plan of Hawaii, Inc.
Honolulu, Hawaii

Kaiser Foundation Health Plan of Kansas City, Inc.
Overland Park, Kansas

Kaiser Foundation Health Plan of Mid-Atlantic States, Inc.
Rockville, Maryland

Kaiser Foundation Health Plan of North Carolina, Inc.
Raleigh, North Carolina

Kaiser Foundation Health Plan of Northwest, Inc.
Portland, Oregon

M-Care, Inc.
Ann Arbor, Michigan

Magellan Behavioral Health/Tristate Regional Service Center
Cincinnati, Ohio

NYLCare Health Plan of the Mid-Atlantic, Inc.
Greenbelt, Maryland

NYLCare Health Plan of the Southwest, Inc.
Irving, Texas

Oxford Health Plans
Trumbull, Connecticut

PacifiCare of Oklahoma, Inc. - Tulsa
Tulsa, Oklahoma

PacifiCare of Texas, Inc.
San Antonio, Texas

PersonalCare Insurance of Illinois, Inc.
Champaign, Illinois

Physicians Health Plan, Inc., PHP South Carolina
Columbia, South Carolina

Prudential HealthCare - Kansas City
Kansas City, Missouri

Prudential HealthCare - MidWest
Dublin, Ohio

Prudential HealthCare - Nashville
Nashville, Tennessee

Prudential HealthCare San Antonio
San Antonio, Texas

Prudential HealthCare St. Louis
St. Louis, Missouri

SelectCare HMO, Inc.
Troy, Michigan

The Health Plan of Upper Ohio Valley
St. Clairsville, Ohio

Tufts Health Plan
Waltham, Massachusetts

United HealthCare of Ohio, Inc. - Dayton Market
Dayton, Ohio

UnitedHealthcare of New England, Inc.
Englewood, Colorado

UnitedHealthcare of Wisconsin
Milwaukee, Wisconsin

U.S. Healthcare, Inc. (New York) dba Aetna U.S. Healthcare
Uniondale, New York