Understanding The Difference Between Medicaid and CHIP

Insuring Low-Income Children

Both Medicaid and the Children's Health Insurance Program (CHIP) provide healthcare coverage for low-income children. In 2020, 35.1 children were enrolled in Medicaid and 9.0 million in CHIP. With more than 44 million children accessing health care through these programs, it is important to understand how they work.

Children running in a field
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Both programs are jointly funded by federal and state governments. Both are run by the states. There are still some inherent differences between the two programs you need to understand if you have a child in need of health care. Simply put, it depends on what state you live in.

Medicaid Eligibility for Children

Children raised in families earning 138 percent or less of the federal poverty level (FPL) per year are eligible for Medicaid. The FPL is calculated by the U.S. Department of Health and Human Services every year and is based on the number of people in a family with consideration also given to location. After all, some states are much more expensive to live in than others, like Hawaii.

Before the Affordable Care Act (ACA) was passed in 2010, children became eligible for Medicaid based on both their age and family income. Generally speaking, the older a child got, the less likely they were to get Medicaid coverage for the same family income. Oddly enough, this meant that only some children within the same family might be covered in any given year. The new legislation made the income eligibility standard the same for children 0 to 19 years of age.

Some states still have different eligibility requirements for different ages groups, but the standard value is now set for at least 138 percent of the FPL for all children. Before the ACA, the eligibility threshold was set at only 100 percent for children between 6 and 19 years old.

Eligibility for CHIP

Medicaid is intended to provide care for the poorest children. The CHIP program was established in 1997 as a way to expand coverage to children who have lower family incomes but who fall outside the Medicaid eligibility window.

The states ultimately decide the eligibility thresholds for CHIP, but the majority of states set that threshold at 140 percent of the FPL or more for children. CHIP can also cover care for pregnant women but that coverage is more variable.

Differences in Coverage for Medicaid and CHIP

Federal regulations mandate Medicaid offer specific services to its covered children. This includes Early and Periodic Screening, Diagnosis and Treatment (EPSDT), comprehensive services which focus on preventive care and wellness. It includes the following:

  • Comprehensive history review
  • Dental care
  • Hearing evaluations, including cochlear transplants and hearing aids
  • Immunizations and vaccinations
  • Lead screening
  • Mental health assessments and counseling
  • Physical examinations
  • Vision evaluations, including eyeglasses

Services also covered by Medicaid include care provided at Federally Qualified Health Centers (FQHCs) as well as rehabilitation services.

CHIP programs, however, do not have to meet the standard set by EPSDT, although they must provide benchmark care that includes hospital care, laboratory studies, X-rays, and well-child examinations, including immunizations.

Dental care may not be as extensive as that offered under EPSDT but must be part of the included benefit package. To this end, each state can choose their dental benefit based on the most popular state employee dental plan, the most popular federal employee dental plan for dependents, or coverage from the most popular commercial insurance plan in the state.

Federal Funding for Medicaid

When it comes to Medicaid, the federal government matches state spending "dollar for dollar," at least in concept. It uses what are known as Federal Medical Assistance Percentages (FMAP) to determine how much it will pay. FMAPs take into account a state's average income relative to the national average.

Each state is given an FMAP of at least 50 percent, i.e., the federal government pays 50 percent of Medicaid costs. All other states receive a higher percentage of Medicaid funds based on their calculated FMAP. With the lowest per capita income level, Mississippi has a 2023 FMAP of 84.06% so that the federal government contributes $5.27 for every $1 the state spends.

In order to get federal Medicaid funding, the states agree to certain terms. The state is not permitted to put people on waiting lists, it cannot have an enrollment cap, and it cannot charge for premiums or copayments for anyone earning less than 150 percent of the FPL.

Federal Funding for CHIP

Federal funding for CHIP, on the other hand, has pre-set limits. Each state is given an allotment every year as a block grant. The dollar amount is fixed regardless of the number of people covered by the program.

The 50 states and the District of Columbia have a choice to use their block grants in one of three ways:

  • As a combination Medicaid-CHIP program
  • As part of the state's Medicaid expansion
  • As a separate CHIP program

To encourage states to participate in CHIP, the federal government offers a higher matching rate than it does for Medicaid. This is referred to as the enhanced Federal Matching Assistance Percentages (eFMAP). The minimum for Medicaid matching in 2023 is 50 percent but all states are 69% or higher. Again, states with higher economic needs get reimbursed at an even higher rate.

Those states using combination programs or Medicaid expansion have the same program requirements as traditional Medicaid. States with separate CHIP programs, however, have more wiggle room. If need be, they can put children on waiting lists or establish enrollment caps to rein in CHIP costs. Many of those states will also charge premiums and copayments to their beneficiaries.

Federal funding for the CHIP program was set to expire in September 2017. Congress approved a stop-gap measure in December 2017 to extend funding into March 2018. It was not until January 2018 that Congress passed a more long-term solution, a retroactive six-year extension through 2023. In 2018, the Bipartisan Budget Act extended that funding through 2027.

While block grants are currently used for the CHIP program, the CHIP program is significantly smaller in scale than Medicaid. Block grants limit how many children can be covered under the CHIP program. This explains why 14 states currently have waiting lists for CHIP.


Children raised in low-income families deserve the same quality health care as their higher-earning counterparts. Medicaid offers care to the poorest families while CHIP extends coverage to a larger number of children. Care through the Medicaid program may be more extensive, but the CHIP program also offers a broad depth of coverage. Understand the difference between these two programs and make the most of your child's health care. To learn more about your state programs, visit the Medicaid site.

11 Sources
Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
  1. Medicaid.gov. Children's Health Insurance Program (CHIP): Reports & Evaluations.

  2. US Department of Health and Human Services. U.S. federal poverty guidelines used to determine financial eligibility for certain federal programs.

  3. Medicaid.gov. Eligibility.

  4. Medicaid and CHIP Payment and Access Commission. Low income children.

  5. Medicaid.gov. Medicaid, Children's Health Insurance Program, & basic health program eligibility levels.

  6. Medicaid.gov. Early and periodic screening, diagnostic, and treatment.

  7. Mitchell A. Medicaid’s federal medical assistance percentage (FMAP). Congressional Research Service.

  8. Kaiser Family Foundation. Federal medical assistance percentage (FMAP) for Medicaid and multiplier.

  9. Medicaid.gov. Financing.

  10. Kaiser Family Foundation. Enhanced federal medical assistance percentage (FMAP) for Medicaid and multiplier.

  11. Centers for Disease Control and Prevention. Children’s Health Insurance Program - Health, United States.

By Tanya Feke, MD
Tanya Feke, MD, is a board-certified family physician, patient advocate and best-selling author of "Medicare Essentials: A Physician Insider Explains the Fine Print."