Health First Colorado for adults

Colorado's Medicaid Program

Health First Colorado is public health insurance for low-income Coloradans who qualify.

Who Qualifies:

The Affordable Care Act (ACA) provides a simplified method for calculating income eligibility for Health First Colorado and Child Health Plan Plus (CHP+) based on what is called Modified Adjusted Gross Income (MAGI). The MAGI rules apply to eligibility determinations for CHP+ and most Medicaid programs, except for those Medicaid programs for individuals over 65 years old and/or for people who have a disability. The use of MAGI standardizes the income eligibility rules across all states.

You may qualify for Health First Colorado if you fall under the following category and meet the income guidelines:

  • Adults without dependent children whose income does not exceed the income standard

Health First Colorado categories include programs, such as:

To apply:

1.  Online through the website
2.  By Mail  or print an application (English / Spanish) and turn it into our office or contact our office to have one mailed to you.
3.  Apply by Phone at 1-800-221-3943  /  TDD: 711
4.  Apply in Person at the Department of Human Services, 4400 Castleton Court, Castle Rock, CO 80109

If you are applying for a category of Health First Colorado for which a disability determination may be required, you can print the Disability Application and Medical Records Release.  These must be completed, signed and returned to our office.  Additional forms and information can be found here.

For Health First Colorado Transportation please call 1-855-264-6368.


If you are confused about Medicare and want more information about your choices and rights, call the Colorado Health Insurance Assistance Program (SHIP) at 1-888-696-7213 or [email protected].   You may also learn more at

To learn more about protecting yourself against Medicare fraud or abuse, you can contact the Senior Medicare Patrol at 1-800-503-5190 or