COLORADO

HMO	Headquarters	Ownership	Began Operations	December 2009 Enrollment/Change from 2008	2009 Net Income (Loss) As % of Revenue	History Notes
Aetna Health of Colorado	Englewood	Aetna, Inc., Hartford, CT	1995	36,999 -8.2%	$6,223,253 3.6%	Founded as Frontier Community Health Plan, purchased in 1996. Aetna acquired Prudential Health in 1999
CIGNA Health Care of Colorado	Denver	CIGNA HealthCare, Inc., Hartford, CT	1986	6,668 -38.6%	-511,448 -1.7%
Colorado Access	Denver	Controlled by Children's Hospital, University of Colorado Hospital and Colorado Community Managed Care Network	1995	121,680 14.6%	-1,600,593 -1.1%	Absorbed prepaid Medicaid plan operated by Denver Health and Hospital Authority. Denver Health withdrew as sponsor in 2004. Ended Medicaid physical health contract effective August 2006.
Denver Health Medical Plan	Denver	Denver Health and Hospital Authority	1997	16,709 2.6%	5,355,385 6.5%
Great-West Health Plan of Colorado	Englewood	Great-West Life, Englewood, CO	1996	432 -37.8%	116,719 16.7%	Formerly known as One Health Plan. CIGNA acquired Great-West. Now known as CIGNA Healthcare Centennial
HMO Colorado	Denver	Rocky Mountain Health and Hospital Service, part of Anthem Blue Cross Blue Shield of Colorado, Indianapolis, IN	1980	64,177 -7.3%	10,151,732 3.6%
Kaiser Foundation Health Plan of Colorado.	Denver	Kaiser Foundation Health Plan, Inc., Oakland, CA	1969	490,424 3.0%	44,395,793 2.0%
PacifiCare of Colorado	Englewood	PacifiCare Health Systems, Cypress, CA	1974	87,855 -12.9%	46,411,495 5.5%	UnitedHealthCare acquired PacifiCare in 2005. Formed from three HMOs acquired by FHP: Aetna Health Plans, founded in 1988 and purchased by FHP in 1993; TakeCare, established in 1979 as Peak Health Plan and bought by FHP in 1994; and Comprecare, founded in 1974 and purchased by TakeCare in 1993. Acquired members of Antero in 1999.
Rocky Mountain Health Maintenance Organization	Grand Junction	Independent, non-profit corporation. Rocky Mountain Health Management Corporation provides management services	1974	78,273 -4.0%	16,157,595 7.5%	Rocky Mountain Health Plans is trade name for HMO and for Rocky Mountain Health Options, which offers PPO plans
San Luis Valley HMO	Monte Vista	Independent, non-profit.	1975	4,912 0.2%	141,937 0.8%	Changed corporate name to Colorado Choice Health Plans as of December 31, 2005
UnitedHealthcare of Colorado	Centennial	UnitedHealthcare, Minnetonka, MN	1986	278 -42.2%	199,636 7.6%	Founded as MetLife of Colorado, then renamed MetraHealth, which resulted from 1994 merger of health insurance businesses of MetLife and the Travelers. United HealthCare acquired in 1996.

HMOs that have closed or were acquired in the last few years: Antero Health Plan (Denver), Community Health Plan of the Rockies, Health Network of Colorado Springs, ProActa Health Partners (Longmont), QualMed Plans for Health (Pueblo/Denver) and Sloans Lake Health Plan (Denver). Prudential phased out its last HMO members in 2002.

Updated August 2010