Medi-Cal
- [USA, California] Division of the Department of Health Services, promotes equitable access to high-quality care for low income and uninsured Californians. Provides organized health care delivery through managed care systems.
- http://www.dhs.ca.gov/mcs/

Sierra Health Services, Inc.
- Provider of managed care benefit plans for employers, government programs, and individuals. Site offers company, investor, career and product information. Products include HMO, PPO, and POS. Headquartered in Las Vegas, Nevada, USA
- http://www.sierrahealth.com/

Community Care Behavioral Health Organization
- Designed primarily to serve public sector consumers, and their families in Pennsylvania through the delivery of effective and accessible behavioral health services. Information on the company and its services is offered.
- http://www.ccbh.com

American Specialty Health Plans of California
- [USA, California] Offers health plans for chiropractic care and acupuncture. Site describes the company and includes directory of participating care providers.
- http://www.ashcompanies.com/

Welsh Mountain Medical and Dental Center (WMMDC)
- Primary care center serving everyone in Lancaster County, Pennsylvania. Offers programs to serve uninsured and low-income individual and families.
- http://www.welshmountain.com/

Humana, Inc.
- Offers coordinated health insurance coverage and related services to employer groups, government-sponsored plans, small businesses and individuals. (NYSE:HUM).
- http://www.humana.com/

Physicians Health Services, Inc.
- Managed health care company. (NYSE:HNT).
- http://www.health.net/

HealthExtras, Inc.
- Provides supplemental health and disability benefit programs directly to consumers over the Internet. (Nasdaq: HLEX).
- http://www.healthextras.com/

Healthcare Recoveries, Inc.
- Provides health insurance subrogation and related recovery services for private healthcare payors. (Nasdaq: HCRI).
- http://www.hcrec.com/

National Medical Health Card Systems, Inc.
- Offers prescription benefit management services to plan sponsors which include managed care organizations, local governments, unions, corporations and third party health care plan administrators. National network of licensed pharmacies, from Port Washingt
- http://www.nmhc.com/

Keystone Mercy Health Plan
- [USA, Pennsylvania] Medical assistance (Medicaid) managed care health plan in the southeastern region of the state.
- http://www.keystonemercy.com/

College Health IPA
- [USA, California] A behavioral healthcare delivery system serving approximately 1.1 million members.
- http://www.chipa.com/

British Union Provident Association (BUPA)
- [International] Provider of health insurance plans and services in several nations.
- http://www.bupa.com/

CorVel Corporation
- [USA] A national, independent provider of managed care and case management services for workers' compensation, accident and health, and auto insurance markets.
- http://www.corvel.com

American Rehabilitation, Inc. (ARI)
- Offers medical and vocational rehabilitation, telephonic claims reporting, telephonic case management, and medical networks.
- http://www.arionline.com/

Choice One, Inc.
- [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).
- http://www.choiceoneinc.com/

Definity Health, Inc.
- [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.
- http://www.definityhealth.com/

Lumenos, Inc.
- [USA] Offers three phase program of consumer-driven healthcare, consisting of health savings account, traditional health coverage, and a health toolkit.
- http://www.lumenos.com/

AmeriChoice Corporation
- [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.
- http://www.americhoice.com/

HealthHelp
- [USA] Provides radiology management services for insurers and physicians. Its national radiology network is used by many managed care organizations.
- http://www.healthhelp.com/

Spectrum Managed Care
- [USA, Texas] A workers' compensation managed care firm offering claims and case management, occupational networks, and medical bill and utilization review.
- http://www.spectrummanagedcare.com/

Resolution Health Medical Scheme
- [South Africa] Provides comprehensive, affordable medical cover to employer groups and individuals, and is supported by sound financial, administrative and medical controls.
- http://www.resorealm.co.za/

Concentra, Inc.
- [USA] Provides occupational health services for cost containment and lost time prevention including: drug screens, physical therapy, first notice of injury, and case management.
- http://www.concentra.com/

Ravenswood Physician Associates (RPA)
- [USA, Illinois] An independent physicians association (IPA) of nearly 250 private practice physicians in Chicago and select northern suburbs. Providing insurance contract management and healthcare.
- http://www.chicagolanddrs.com/

Prospect Medical
- [USA, California] An affiliation of several managed care plans in the Greater Los Angeles area who have joined together to provide the full range of medical services to patients.
- http://www.prospectmedical.com/

County Managed Care Resource (COMCARE)
- [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.
- http://www.ccapcomcare.com/

Profit Line
- [USA] Delivers high return, risk free managed care claim audit and recovery services to the managed healthcare industry.
- http://www.profit-line.net/

Medical Network One
- [USA, Michigan] A for-profit organization committed to providing administrative services to physicians who have entered into both risk sharing and non-risk sharing agreements with managed care organizations.
- http://www.mednetone.com/

Molina Healthcare, Inc.
- [USA] Provides managed healthcare in California, Washington, Utah, and Michigan, to individuals covered under Medicaid and related programs. [English, Spanish, Chinese, Russian, Vietnamese, and Hmong]
- http://www.molinahealthcare.com/

HealthSpring
- [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.
- http://www.myhealthspring.com/

Harvard Pilgrim Health Care
- [USA] Nonprofit organization offers HMO, PPO, and POS plans in New England. Includes benefits, coverage, financial and employment information, and health news.
- http://www.harvardpilgrim.org/

First Health Group Corporation
- [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.
- http://www.firsthealth.com/

Multimed
- [South Africa] A medical scheme administrator. Services include managed care, claims management, and risk management.
- http://www.multimed.co.za/

Pacificare Health Systems
- [USA] A managed care health insurance company providing health plans for seniors, employer groups, families, and individuals. Includes areas for brokers, employers, and health care providers. Operates in western states and Guam.
- http://www.pacificare.com/

GatesMcDonald HealthPlus
- [USA, Ohio] A managed care program providing medical care via workers' compensation for injured workers. Site describes company, its services, and allows provider lookup.
- http://www.gmcdhealthplus.com/

Amerigroup Corporation
- [USA] Provider of health care to low-income and uninsured families in several states and the District of Columbia. [English, some content in Spanish]
- http://www.amerigroupcorp.com

Health Plan of Nevada
- [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.
- http://www.healthplanofnevada.com/

Coventry Health Care, Inc.
- [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.
- http://www.cvty.com/