| Associations Health Maintenance Organizations | Preferred Provider Organizations Resources |
| American Rehabilitation, Inc. (ARI) - http://www.arionline.com/ Offers medical and vocational rehabilitation, telephonic claims reporting, telephonic case management, and medical networks. |
| AmeriChoice Corporation - http://www.americhoice.com/ [USA] Organizes health care benefits and services for beneficiaries of Medicaid and other government-sponsored health care programs in more than one dozen markets nationwide. |
| Amerigroup Corporation - http://www.amerigroupcorp.com [USA] Provider of health care to low-income and uninsured families in several states and the District of Columbia. [English, some content in Spanish] |
| British Union Provident Association (BUPA) - http://www.bupa.com/ [International] Provider of health insurance plans and services in several nations. |
| Choice One, Inc. - http://www.choiceoneinc.com/ [USA, North Carolina] Offers ongoing review and negotiation of managed care agreements for physicians with HMOs, PPOs, and POS programs. Has assisted in establishing several independent practice associations (IPAs). |
| College Health IPA - http://www.chipa.com/ [USA, California] A behavioral healthcare delivery system serving approximately 1.1 million members. |
| Concentra, Inc. - http://www.concentra.com/ [USA] Provides occupational health services for cost containment and lost time prevention including: drug screens, physical therapy, first notice of injury, and case management. |
| CorVel Corporation - http://www.corvel.com [USA] A national, independent provider of managed care and case management services for workers' compensation, accident and health, and auto insurance markets. |
| County Managed Care Resource (COMCARE) - http://www.ccapcomcare.com/ [USA, Pennsylvania] A program of the County Commissioners Association, which provides services and assistance to the counties implementing behavioral managed healthcare within the state HealthChoices program. |
| Coventry Health Care, Inc. - http://www.cvty.com/ [USA] A managed health care organization which offers HMOs and PPOs in many states. Site provides links to subsidiary organizations, offers investor information, and a company overview. |
| Definity Health, Inc. - http://www.definityhealth.com/ [USA] A provider of consumer-driven health plans, consisting of an employer-funded personal care account, a traditional health coverage component, and an array of tools and resources to support its members. |
| First Health Group Corporation - http://www.firsthealth.com/ [USA] Serves the group health, workers' compensation, and state public program markets in addition to offering claims services and clinical management. Site describes the company, its services, and offers consumer information. |
| Health Plan of Nevada - http://www.healthplanofnevada.com/ [USA, Nevada] Offers HMO, Medicare HMO, PPO, and POS plans. Site includes information about plan options and benefits and a glossary. A subsidiary of Sierra Health Services, Inc. |
| Healthcare Recoveries, Inc. - http://www.hcrec.com/ Provides health insurance subrogation and related recovery services for private healthcare payors. (Nasdaq: HCRI). |
| HealthExtras, Inc. - http://www.healthextras.com/ Provides supplemental health and disability benefit programs directly to consumers over the Internet. (Nasdaq: HLEX). |
| HealthHelp - http://www.healthhelp.com/ [USA] Provides radiology management services for insurers and physicians. Its national radiology network is used by many managed care organizations. |
| HealthSpring - http://www.myhealthspring.com/ [USA, Tennessee] A managed care organization in central part of state. Site describes products and services, allows provider search, and has areas for members, brokers, providers, and employers. |
| Keystone Mercy Health Plan - http://www.keystonemercy.com/ [USA, Pennsylvania] Medical assistance (Medicaid) managed care health plan in the southeastern region of the state. |
| Lumenos, Inc. - http://www.lumenos.com/ [USA] Offers three phase program of consumer-driven healthcare, consisting of health savings account, traditional health coverage, and a health toolkit. |
| Medical Control, Inc. - http://www.mdcl.com/ Holding company with subsidiaries which provide program of managed healthcare services to employers which self-fund their benefit programs, including healthcare cost containment programs. (Nasdaq: MDCL). |