Exhibit 21 MAGELLAN HEALTH SERVICES, INC. SUBSIDIARIES September 30, 1999 The following corporations are direct or indirect subsidiaries of Magellan Health Services, Inc. - --------------------------------------------------------------------------------------------------------- ----------------------- NAME: JURISDICTION OF DOMICILE: - --------------------------------------------------------------------------------------------------------- ----------------------- Allied Specialty Care Services, Inc. Florida Care Management Resources, Inc. Florida Charter Behavioral Corporation Delaware Green Spring Health Services, Inc. Delaware Advantage Behavioral Systems, Inc. Pennsylvania Resource Day Treatment Center Pennsylvania AdvoCare of Tennessee, Inc. Tennessee Premier Holdings, Inc. Tennessee Magellan - PBS, LLC Delaware Premier Behavioral Systems of Tennessee, LLC Tennessee Ceres Behavioral Healthcare System, LLC Oregon Green Spring Canadian Holding, Inc. Delaware Green Spring Health Services of Canada Co. Nova Scotia Group Practice Affiliates, Inc. Delaware GMV, LLC Virginia Capital Area PsySystems, Inc. Texas Integrated Mental Health, LLC Texas GPA Arizona, Inc. Arizona GPA Pennsylvania, Inc. Pennsylvania Integrated Behavioral Care, Inc. Virginia Capital Area Psych Services Texas Integrated Mental Health Texas Novapsy Clinic, LLC Virginia Pacific Behavioral Management, LLC California Magellan Behavioral of Michigan, Inc. Michigan Green Spring of Pennsylvania, Inc. Pennsylvania Managed Care Services Mainstay of Central Pennsylvania, Inc. Pennsylvania Maryland Health Partners, LLC Maryland Maschhoff, Barr & Associates, Inc. Washington Vista Behavioral Health Plans, Inc. California Human Affairs International, Incorporated Utah Human Affairs of Alaska, Inc. Alaska Human Affairs International of California California Human Affairs International IPA, Inc. New York Human Affairs International of Pennsylvania, Inc. Pennsylvania Magellan Behavioral Health, Inc. Delaware MCI/Magellan Partners, L.L.C. Delaware Magellan Military Health Solutions, Inc. Delaware Tennessee Behavioral Health, Inc. TN Magellan Behavioral Health of Texas, Inc. Texas Magellan Capital, Inc. Delaware Magellan CBHS Holdings, Inc. Delaware Behavioral Health Systems of Indiana, Inc. Indiana The Charter Behavioral Health System of Northwest Indiana, LLC Delaware Blue Grass Physician Management Services, Inc. Kentucky C.A.C.O. Services, Inc. Ohio CCM, Inc. Nevada Charter Alvarado Behavioral Health System, Inc. California Charter Asheville Behavioral Health System, Inc. North Carolina Charter Bay Harbor Behavioral Health System, Inc. Florida Charter Behavioral Health System of Athens, Inc. Georgia Charter Behavioral Health System of Northern California, Inc. California Charter Behavioral Health System of Baywood, Inc. Texas Charter Behavioral Health System of Bradenton, Inc. Florida Charter Behavioral Health System at Manatee Adolescent Treatment Services, Inc. Florida Charter Behavioral Health System of Central Georgia, Inc. Georgia Charter Behavioral Health System of Central Virginia, Inc. Virginia Mental Healthsource, L.L.C. Virginia Charter Behavioral Health System of Charleston, Inc. South Carolina Charter Behavioral Health System of Charlottesville, Inc. Virginia Charter Behavioral Health System of Chicago, Inc. Illinois Charter Behavioral Health System of Chula Vista, Inc. California Charter Behavioral Health System of Columbia, Inc. Missouri Charter Behavioral Health System of Corpus Christi, Inc. Texas Charter Behavioral Health System of Dallas, Inc. Texas Charter Behavioral Health System of Delmarva, Inc. Maryland Charter Behavioral Health System at Fair Oaks, Inc. New Jersey Charter Behavioral Health System of Fort Worth, Inc. Texas Charter Behavioral Health System at Hidden Brook, Inc. Maryland Charter Behavioral Health System of Jackson, Inc. Mississippi Charter Behavioral Health System of Jacksonville, Inc. Florida Charter Behavioral Health System of Kansas City, Inc. Kansas Charter Behavioral Health System of Lafayette, Inc. Louisiana The Charter Cypress Behavioral Health System, L.L.C. Tennessee Charter Behavioral Health System of Lake Charles, Inc. Louisiana Charter Behavioral Health System at Los Altos, Inc. California Charter Behavioral Health System of Massachusetts, Inc. Massachusetts Westwood/Pembroke Health System Limited Partnership Massachusetts Charter Behavioral Health System of Mississippi, Inc. Mississippi Charter Behavioral Health System of Nashua, Inc. New Hampshire Charter Behavioral Health System of Nevada, Inc. Nevada Charter Behavioral Health System of New Mexico, Inc. New Mexico The Charter Heights Behavioral Health System Limited Partnership Delaware Charter Behavioral Health System of Northwest Arkansas, Inc. Arkansas Charter Behavioral Health System of Paducah, Inc. Kentucky Charter Behavioral Health System at Potomac Ridge, Inc. Maryland Charter Behavioral Health of Puerto Rico, Inc. Georgia Charter Behavioral Health System of San Jose, Inc. California Charter Behavioral Health System of Texarkana, Inc. Arkansas Charter Behavioral Health System of Toledo, Inc. Ohio Charter Behavioral Health System of Tucson, Inc. Arizona Charter Behavioral Health System of Visalia, Inc. California Charter Behavioral Health System of Waverly, Inc. Minnesota Charter Behavioral Health System of Winston-Salem, Inc. North Carolina Charter Behavioral Health System of Yorba Linda, Inc. California Charter-By-The-Sea Behavioral Health System, Inc. Georgia Charter Canyon Behavioral Health System, Inc. Utah Charter Canyon Springs Behavioral Health System, Inc. California Charter Centennial Peaks Behavioral Health System, Inc. Colorado Charter Community Hospital, Inc. California Charter Cove Forge Behavioral Health System, Inc. Pennsylvania Charter Fairmount Behavioral Health System, Inc. Pennsylvania Charter Fenwick Hall Behavioral Health System, Inc. South Carolina Charter Financial Offices, Inc. Georgia Charter Forest Behavioral Health System, Inc. Louisiana Charter Grapevine Behavioral Health System, Inc. Texas Metroplex Behavioral Healthcare Services, Inc. Texas Charter Greensboro Behavioral Health System, Inc. North Carolina Charter Hospital of Columbus, Inc. Ohio Charter Hospital of Mobile, Inc. Alabama Charter Hospital of Santa Teresa, Inc. New Mexico Charter Hospital of St. Louis, Inc. Missouri Charter Hospital of Torrance, Inc. California Charter Indiana BHS Holding, Inc. Indiana The Charter Behavioral Health System of Northwest Indiana, LLC Delaware Charter Lakehurst Behavioral Health System, Inc. New Jersey Charter Lakeside Behavioral Health System, Inc. Tennessee Charter Lakeside Behavioral Health Network, Inc. Tennessee Charter Laurel Heights Behavioral Health System, Inc. Georgia Charter Linden Oaks Behavioral Health System, Inc. Illinois Naperville Psychiatric Ventures Illinois Charter Little Rock Behavioral Health System, Inc. Arkansas Charter Louisiana Behavioral Health System, Inc. Louisiana Charter Louisville Behavioral Health System, Inc. Kentucky Charter Meadows Behavioral Health System, Inc. Maryland Charter Medical (Cayman Islands) Ltd. Cayman Islands Charter Medical - Clayton County, Inc. Georgia Charter Medical of East Valley, Inc. Arizona Charter Medical International, Inc. Cayman Islands Charter Medical International, S.A., Inc. Nevada Charter Medical International Services, Inc. Cayman Islands Charter Medical Leasing Limited United Kingdom Charter Medical - Long Beach, Inc. California Charter Medical - New York, Inc. New York Charter Medical of North Phoenix, Inc. Arizona Charter Medical of Puerto Rico, Inc. Commonwealth of Puerto Rico Charter Milwaukee Behavioral Health System, Inc. Wisconsin Charter Mission Viejo Behavioral Health System, Inc. California Charter MOB of Charlottesville, Inc. Virginia Charter North Behavioral Health System, Inc. Alaska Charter North Counseling Center, Inc. Alaska Charter North Star Behavioral Health System, L.L.C. Tennessee Charter Northridge Behavioral Health System, Inc. North Carolina Holly Hill/Charter Behavioral Health System, L.L.C. Tennessee Charter Oak Behavioral Health System, Inc. California Charter Palms Behavioral Health System, Inc. Texas Charter Park Hospital Limited United Kingdom Charter Peachford Behavioral Health System, Inc. Georgia Charter Pines Behavioral Health System, Inc. North Carolina Charter Plains Behavioral Health System, Inc. Texas Charter - Provo School, Inc. Utah Charter Real Behavioral Health System, Inc. Texas Charter Ridge Behavioral Health System, Inc. Kentucky Charter Rivers Behavioral Health System, Inc. South Carolina Charter Rockford Behavioral Health System, Inc. Delaware Charter San Diego Behavioral Health System, Inc. California Charter Sioux Falls Behavioral Health System, Inc. South Dakota Charter Springs Behavioral Health System, Inc. Florida Charter Springwood Behavioral Health System, Inc. Virginia Charter Suburban Hospital of Mesquite, Inc. Texas Charter Talbott Behavioral Health System, Inc. Georgia Charter Behavioral Health System of Savannah, Inc. Georgia Charter Thousand Oaks Behavioral Health System, Inc. California Charter Westbrook Behavioral Health System, Inc. Virginia CPS Associates, Inc. Virginia Charter White Oak Behavioral Health System, Inc. Maryland Charter Wichita Behavioral Health System, Inc. Kansas Charter Woods Behavioral Health System, Inc. Alabama Desert Springs Hospital, Inc. Nevada CMCI, Inc. Nevada CCM, Inc. Nevada CMFC, Inc. Nevada Employee Assistance Services, Inc. Georgia Florida Health Facilities, Inc. Florida Golden Isle Assurance Company Ltd. Bermuda NEPA - Massachusetts, Inc. Massachusetts NEPA - New Hampshire, Inc. New Hampshire New Allied, Inc. Florida Pacific - Charter Medical, Inc. California Charter Behavioral Health System of the Inland Empire, Inc. California Plymouth Insurance Company, Ltd. Bermuda Sistemas De Terapia Respiratoria S.A., Inc. Georgia Strategic Advantage, Inc. Minnesota Western Behavioral Systems, Inc. California Magellan Executive Corporation Delaware Magellan Public Solutions, Inc. Delaware KidsCareNet of Milwaukee, LLC Wisconsin Magellan Public Network, Inc. Delaware Correctional Behavioral Solutions, Inc. Delaware Correctional Behavioral Solutions of Indiana, Inc. Indiana Correctional Behavioral Solutions of New Jersey, Inc. New Jersey Correctional Behavioral Solutions of Ohio, Inc. Ohio National Mentor, Inc. Delaware Center for Comprehensive Services, Inc. Illinois First Step Independent Living Program, Inc. California Horrigan Cole Enterprises, Inc. California Illinois Mentor, Inc. Illinois Rehabilitation Achievement Center, Inc. Illinois Massachusetts Mentor, Inc. Massachusetts National Mentor Healthcare, Inc. Massachusetts Carolina Behavioral Services, LLC Delaware Loyd's Liberty Homes, Inc. California Unlimited Quest, Inc. California Ohio Mentor, Inc. Ohio South Carolina Mentor, Inc. South Carolina Magellan Public Solutions of Ohio, Inc. Ohio Solutions For Care, Inc. Delaware Magellan Specialty Health, Inc. Delaware CAI Holdings, Inc. Delaware CAI Merger Corporation Delaware MBCH, Inc. Delaware Merit Behavioral Care Corporation Delaware American Biodyne, Inc. Delaware AGCA Acquisition Corporation-New York Delaware AGCA, Inc. Pennsylvania AGCA Headquarters Limited Partnership Pennsylvania AGCA New York, Inc. New York Achievement and Guidance Centers of New York, Inc. New York AGCA IPA of New York, Inc. New York AGCA/Better Health Plan, Inc. New York AGCA/Chubb Health Plan, Inc. New York MBC Behavioral Care of New York, Inc., a New York Independent Practice Association New York MBC Behavioral Health Services of New York, Inc., a New York Independent Practice Association New York MBC Health Care of New York, Inc., a New York Independent Practice Association New York MBC Health Services of New York, Inc., a New York Independent Practice Association New York MBC of New York, Inc., a New York Independent Practice Association New York MBC Providers of New York, Inc., a New York Independent Practice Association New York U.S. IPA Providers, Inc. New York Quality Healthcare Solutions, Inc. Pennsylvania Alliance Health Systems, Inc. Indiana Arizona Biodyne, Inc. Arizona California Biodyne Health Services, Inc. California Colorado Biodyne, Inc. Colorado Hawaii Biodyne, Inc. Hawaii Louisiana Biodyne, Inc. Louisiana MBC Federal Programs, Inc. Delaware MBC of New Mexico, Inc. New Mexico Merit Behavioral Care of Florida, Inc. Florida Merit Behavioral Care of Illinois, Inc. Illinois Merit Behavioral Care of Massachusetts, Inc. Massachusetts Merit Behavioral Care of Montana, Inc. Montana Merit Behavioral Care of Pennsylvania, Inc. Pennsylvania Merit Behavioral Care of Texas, Inc. Texas Michigan Biodyne, Inc. Michigan Ohio Biodyne, Inc. Ohio Vermont Biodyne, Inc. Vermont BCOV-GP, Inc. Delaware Benesys Doctors, P.A. Texas Benesys, Inc. Delaware CMG Health, Inc. Maryland ARD Properties, Inc. Delaware Choice Behavioral Health Partnership Virginia CMG Behavioral Health of California, Inc. California CMG Behavioral Healthcare of New York, Inc. New York CMG Choice Independent Practice Association of New York, Inc. New York CMG Health of New York, Inc. New York CMG Independent Practice Association of New York, Inc. New York CMG Plus Independent Practice Association of New York, Inc. New York Inpsych, Inc. Maryland Inpsych Kentucky, Inc. Kentucky Inpsych Midwest, Inc. Missouri Maryland Health Partners, LLC Maryland Montana Community Partners, Inc. Montana Continuum Behavioral Care, LLC Rhode Island Continuum Behavioral Healthcare Corporation Delaware Spectrum-Continuum Management Services of New York, LLC Delaware Spectrum-Continuum IPA Providers of New York, LLC Delaware EMHC-MBC of New York, LLC New York EMHC/MBC IPA Providers of New York, LLC New York EMHC-MBC Services of New York, LLC New York Group Plan Clinic, Inc. Texas MBC Health Providers of Texas, Inc. Texas MBC of America, Inc. Delaware EMHC/MBC IPA Providers of New York, LLC New York EMHC-MBC Services of New York, LLC New York Empire Community Delivery Systems, LLC New York MBC Management Services of New York, LLC New York MBC of Nebraska, L.L.C. Nebraska MBC of Tennessee, Inc. Tennessee MBC of Tennessee, LLC Tennessee MBC/IPA Providers of New York, LLC New York Royal Health Care, LLC New York MBC of North Carolina, LLC North Carolina MBC of Tennessee, LLC Tennessee MBC Washington Systems, Inc. Washington Community Sector Systems, Inc. Washington Merit Behavioral Care Corporation of Iowa Iowa Merit Behavioral Care of Georgia, Inc. Georgia Merit Behavioral Care Systems Corporation Ohio INROADS Behavioral Health Services of Texas, L.P. Texas MBCS of Florida, Inc. Florida MBCS of North Carolina, Inc. North Carolina Merit INROADS Behavioral Health Services of Illinois, LLC Illinois Merit Health Insurance Company Illinois Orion Life Insurance Company Delaware Merit Holdings Corp. Delaware MBC National Service Corporation Delaware Merit Behavioral Care of Arkansas, Inc. Arkansas Merit Behavioral Care of Maryland, Inc. Maryland Merit INROADS Behavioral Health Services, LLC Delaware Merit INROADS Behavioral Health Services of Illinois, LLC Illinois INROADS Behavioral Health Services of Texas, L.P. Texas MeritChoice, Inc. Delaware MeritChoice, Ltd. Pennsylvania ProPsych, Inc. Florida PPC Group, Inc. Delaware Merit Behavioral Care of California, Inc. Missouri P.P.C., Inc. Missouri Personal Performance Consultants of New York, Inc. New York