What Medicaid Is and Is Not

Most arguments about Idaho Medicaid start with a mistake about what the program is. A speaker at a hearing calls it "free health care for the unemployed." A flyer says it is "run by Washington." A neighbor says it is the same thing as Medicare. Each of those claims is wrong in a way you can check, and checking them is the first skill in this course. This lesson gives you the vocabulary and the numbers for that check. The later lessons build on it: how Idaho got expansion, who qualifies, who writes the rules, where the money goes, what changes in 2027, and what to do when a notice arrives in the mail.

As of October 2026 the facts here are current to the sources cited at the end. Medicaid law changes often. Where a rule could move before you read this, the text says so.

Two programs, two laws, two sets of people

Medicare and Medicaid were signed into law on the same day in 1965 as amendments to the Social Security Act, and the similar names have confused people ever since. Medicare is Title XVIII of that Act. It is run by the federal government, financed through payroll taxes, premiums and general revenue, and it covers mainly people 65 and older plus some younger people with long-term disabilities. Medicaid is Title XIX. It is run by the states within federal rules, financed jointly by the federal government and the states, and it covers people based on income and circumstance: children, pregnant women, parents, adults with low income, older adults with little income or savings, and people with disabilities.

A person does not choose between the two. Some people qualify for both. They are called dual eligibles, and Idaho has a Medicare-Medicaid Coordinated Plan built for them. A retired farmworker in Twin Falls with a small pension may carry a Medicare card for hospital and doctor bills and a Medicaid card that pays her Medicare premiums or covers a nursing home stay that Medicare does not. Figure 1 sets the two programs side by side.

Why the difference matters at a hearing

Idaho legislators cannot change Medicare. They can change a great deal about Medicaid: which optional services are covered, how much providers are paid, which waivers the state asks Washington to approve, and which rules DHW must follow. That is why the Idaho Legislature's health committees spend weeks on Medicaid bills and almost no time on Medicare. If a candidate promises to "fix Medicare" in a state legislative race, the promise is outside the office. If the candidate promises to change how Idaho pays nursing homes through Medicaid, the promise is inside it.

If the claim is about...	The decision belongs to...	Where to check
Medicare premiums, Part A, B or D	Congress and CMS	medicare.gov, Social Security Act Title XVIII
Medicaid income limit for a group	The state, within federal minimums	DHW income limits page, IDAPA rules
Medicaid provider payment rates	The Legislature through JFAC, then DHW	Appropriation bills, DHW rate schedules
Who must meet a work requirement	Congress (H.R. 1) and Idaho law	42 U.S.C. 1396a(xx), Idaho Code 56-267
A denial of your coverage	DHW, then an independent hearing officer	The notice itself and Lesson 8

The legal frame: Title XIX, the state plan and the entitlement

Title XIX of the Social Security Act sets up a bargain. A state that wants federal Medicaid money writes a state plan describing who it covers, what it covers and how it pays. CMS reviews the plan. If it meets federal requirements, the state receives a share of what it spends. The state plan and its amendments are public documents on medicaid.gov. A state can also ask for waivers: permission to run part of the program differently than the statute normally allows. Section 1115 waivers allow experiments. Section 1915(c) waivers pay for home and community-based services. Section 1915(b) waivers allow managed care arrangements. Lesson 4 walks through each type.

Medicaid is described as an entitlement. The meaning is narrow and worth stating exactly. A person who meets the eligibility rules of a covered group is entitled to enroll, and the state cannot place that person on a waiting list or close enrollment because the budget ran short. A state can cap enrollment in some waiver programs, which is why waiting lists exist for certain Idaho home and community-based services. For the regular state plan groups, though, the money follows the person. When more eligible people enroll, or when they use more care, spending rises automatically. The Legislature appropriates a number each year, and when the actual bill exceeds it, the department asks for a supplemental appropriation or cuts something else. Lesson 5 covers how that played out in 2025 and 2026.

Mandatory and optional

Federal law divides Medicaid into mandatory and optional parts, both for people and for services. Mandatory groups include most low-income children, pregnant women, and people receiving Supplemental Security Income in states that follow the federal standard. Mandatory services include inpatient and outpatient hospital care, physician services, nursing facility care for adults, home health, and the early and periodic screening, diagnostic and treatment benefit (EPSDT) for children under 21. Optional services include adult dental care, many therapies, and most home and community-based services. Prescription drugs are also optional under the statute, although every state covers them.

The optional label is a legal category and says nothing about how much people need the service. A person with a developmental disability who relies on residential habilitation, or a person with a spinal cord injury who relies on attendant care, is using an "optional" benefit. When a governor's budget lists "optional services" for reduction, as Gov. Brad Little's FY2027 recommendation did, the reduction can fall on services that decide whether someone lives at home or in an institution. Lesson 5 returns to that.

The expansion option

The Affordable Care Act of 2010 told states to cover all adults under 65 with income up to 133 percent of the federal poverty level. In 2012 the U.S. Supreme Court, in National Federation of Independent Business v. Sebelius, 567 U.S. 519, held that Congress could not threaten states with the loss of their existing Medicaid money for refusing, and that left expansion optional. Idaho did not expand for years. Voters did it themselves in 2018 through Proposition 2, which is the subject of Lesson 2. The effective income line is 138 percent because federal rules add a 5 percentage point income disregard on top of the 133 percent figure; Lesson 3 shows the arithmetic.

Who pays: the federal match and what it means for Idaho

Medicaid spending is split between the federal government and the state using the Federal Medical Assistance Percentage, or FMAP. Each state's FMAP is set by a formula in the Social Security Act tied to the state's per-person income relative to the national average. A poorer state gets a higher federal share. The floor is 50 percent, and 10 states sit at that floor in federal fiscal year 2027. Mississippi has the highest at 77.32 percent. Idaho is in between: KFF lists 67.59 percent for FY2025, 66.91 percent for FY2026 and 67.31 percent for FY2027.

Federal fiscal years run October 1 to September 30, and Idaho's state fiscal year runs July 1 to June 30. A single Idaho budget year therefore blends two federal rates, and a news story that quotes "the federal match" for a given year may be using either. That is a detail, but it is the kind that explains why two correct articles can quote slightly different totals.

A worked example with the match

Notice what the example leaves out. State dollars are not all general fund. Idaho can pay its share from other dedicated state funds as well, so a budget table that shows general fund alone may understate the state side. The Legislature's budget documents use three labels: total funds, general fund and federal funds. When a speaker says "Medicaid costs the state $5.5 billion," the number is total funds, and about two thirds of that came from Washington. The state's general fund share is far smaller. The number in the news may be correct and still lead listeners to the wrong conclusion about what Idaho taxpayers pay.

The 90 percent promise and what happens if it changes

Idaho Code 56-267, the section created by Proposition 2, contains a trigger. If federal funding for the expansion group falls below 90 percent, the House and Senate health and welfare committees must review the program and recommend what to do by the end of the next regular session. If the drop happens between sessions, the department must offset the added state cost, for example through provider rate cuts or by eliminating optional benefits, until the Legislature acts. Federal law as of October 2026 sets that match at 90 percent under section 1905(y), so the trigger has not been pulled. Readers should treat any claim that "the state will have to cover expansion" as a prediction about a future federal change, not a current fact.

What Medicaid pays for

Medicaid is an insurance-like program, but it pays in two quite different ways. For most children and adults, DHW pays providers directly for each service, which is called fee-for-service. For a smaller group, a managed care organization receives a monthly payment per person and handles the claims. As of 2025, only about 6 percent of enrollees, roughly 15,000 dual eligibles, were in comprehensive managed care, according to the Idaho Capital Sun. House Bill 345 of 2025 directs a move toward comprehensive managed care, which DHW's managed care page now dates to January 1, 2030. Lesson 7 covers the details and the pushback.

Idaho organizes adult coverage into plans that determine the benefit package:

• Basic Plan: for adults without special health needs, covering basic health, prevention and wellness benefits.
• Enhanced Plan: for adults with a disability or special health need, with every Basic Plan benefit plus specialized ones. DHW says a doctor's referral is usually needed to qualify.
• Medicare-Medicaid Coordinated Plan: for people enrolled in both programs, with every Enhanced benefit and the option to enroll in a managed care plan that coordinates the two.

The benefit rules sit in the Idaho Administrative Procedure Act, called IDAPA. Chapter 16.03.09 covers Medicaid Basic Plan Benefits and 16.03.10 covers Medicaid Enhanced Plan Benefits. A child's benefits follow a different track because of EPSDT, the federal requirement that Medicaid cover medically necessary services for enrollees under 21 even when an adult with the same condition might not receive them. That requirement is a major reason children cost less to cover than people assume yet still produce large claims in a few cases, such as a premature infant or a child with cancer.

Long-term care and home and community-based services

A large share of Medicaid spending goes to long-term services: nursing homes, and home and community-based services (HCBS) that let people with disabilities or frailty stay in their own homes. Idaho runs several HCBS programs under 1915(c) waivers, including programs for older adults and people with physical disabilities and programs for people with developmental disabilities. These are the programs most exposed to rate fights. The 2026 Legislature, in House Bill 863, cut residential habilitation provider rates by $21.8 million from the general fund for FY2027, and the lawsuit K.W. v. Armstrong remains part of the background. Lesson 5 covers that bill and the arguments on each side.

Medicare does not pay for ongoing custodial care. This is the single most common surprise for families. A grandmother may have Medicare for years and then need help with bathing and dressing that Medicare will not buy. Medicaid pays for that help for people who meet its income and resource limits, which is why the DHW income table lists a nursing facility limit of $3,002 a month for an individual alongside a $2,000 resource limit, and why many middle-income families encounter Medicaid first when a parent needs long-term care. Lesson 3 covers those limits.

Who runs Medicaid in Idaho

Four layers act on Idaho Medicaid, and a reader who learns who does what can send a complaint to the right door.

Layer	What it does	Example
CMS (federal)	Approves the state plan, waivers and managed care contracts; publishes rules	Interim final rule CMS-2454-IFC on work requirements, published June 3, 2026
Idaho Legislature	Writes the Medicaid statutes in Idaho Code Title 56 and appropriates the money	HB 345 (2025), HB 913 (2026), HB 863 (2026)
DHW Division of Medicaid	Writes benefit policy, pays providers, runs waivers and contracts	Medicaid Administrator Sasha O'Connell
DHW Division of Self-Reliance	Takes applications and decides eligibility	Idalink portal, 1-877-456-1233
Governor	Proposes a budget, signs or vetoes bills, orders mid-year cuts	Gov. Brad Little's 3 percent cut order in August 2025

Two internal facts help. First, eligibility and payment are separate. Self-Reliance staff decide whether you qualify; the Division of Medicaid pays for your care. A managed care organization, if you are ever enrolled in one, does not decide eligibility either. DHW says so on its managed care page. Second, DHW is a large cabinet agency, and the Medicaid budget is the largest piece of it. The department's FY2027 request for the whole agency was $6.23 billion, according to the Idaho Capital Sun in September 2025, and the Legislature's Joint Finance-Appropriations Committee (JFAC) set the Medicaid portion at about $5.54 billion in total funds in March 2026.

The Legislature also created a Medicaid Review Panel to watch the department's design work, and DHW says it is working with the panel on more than 50 design decisions for managed care. Idaho Code 56-2201, added by House Bill 345 in 2025 to replace a similar 2024 section, bars DHW from pursuing a plan change or waiver that extends coverage to more people or raises state costs unless the Legislature approves it in statute first. In practice that gives the Legislature a veto over expansions of the program that the department cannot go around. It does not reach programs already authorized in statute or in effect on July 1, 2025.

How big it is, and why the numbers disagree

Idaho Medicaid enrollment was about 260,000 in mid-2025, according to the Idaho Capital Sun in June 2025. A March 2025 Capital Sun article had put total enrollment near 262,000, with 89,400 in the expansion group. Those two figures are consistent. The expansion count, though, moves around across sources:

Figure	Source and date	Likely reason it differs
89,400	Idaho Capital Sun, March 2025	Early 2025 monthly count
About 92,000	Idaho Capital Sun, June 2025	Different month or cumulative definition
Nearly 79,000	Idaho Capital Sun, March 31, 2026	Later date; the article gives no cause
79,000 to 80,000	Idaho Capital Sun, April 9, 2026	Same period, rounded
About 85,000	State figure in Capital Sun, July 24, 2026	Different month; a state figure
85,000 to 90,000	DHW managed care page	DHW estimate of expansion members affected by the work requirements, not a count

The sources are not lying. A monthly enrollment count differs from "ever enrolled during a year," which differs from "eligible," which differs from "applied." Reporters sometimes take an enrollment figure from one source and a spending figure from another source that used a different definition, and then divide to get a cost per person. The result looks precise and means very little. Ask three questions of any enrollment figure: what date does it describe, what does it count, and who produced it. Lesson 9 turns this into a checklist.

Who is on Medicaid, and what the program does for them

The public image of a Medicaid enrollee is often a single adult, a picture that does not match where the spending goes. Children make up a large share of the people on the program, while a large share of the money goes to people with disabilities and older adults. DHW officials said in September 2025, according to the Idaho Capital Sun, that most cost growth came from the traditional population (children, pregnant women and people with disabilities) rather than from expansion. The department made that point when it asked for a $60 million supplemental appropriation for FY2026. A part of that request, about $22 million of general fund meant for FY2025, was released in FY2026 because of an error in the state's Luma business system. Whether you accept DHW's account or a skeptic's, you can verify it in the Legislative Services Office budget documents, not in anyone's speech.

Medicaid also pays for the community services that many people with developmental disabilities rely on. The DHW page on pregnancy coverage says Medicaid covers pregnancy and up to 12 months of care after birth for eligible women. Because the program pays for so much care for so many types of people, a change that sounds small, such as a rate cut of 4 percent, spreads into clinics, group homes, ambulance services and nursing homes at once.

The adults the 2027 work requirements reach

The people who gain the most attention in 2026 are expansion adults 19 to 64. Beginning January 1, 2027, Idaho will require them to show 80 hours a month of work, community service, a work program or at least half-time schooling, or monthly income of at least $580, unless they fall in an exempt category. DHW's first look found that 68,400 of roughly 83,000 expansion enrollees met the new requirements at the time of the review, according to Medicaid Administrator Sasha O'Connell as reported by the Idaho Capital Sun in July 2026. That is the state's early figure, and it does not tell you how many of the remaining 14,600 or so will keep coverage by filing paperwork. An Urban Institute and Robert Wood Johnson Foundation analysis estimated that work requirements and other federal changes could remove 20,000 to 34,000 Idahoans from expansion by 2028. Lesson 6 walks through each step. For now, notice the structure of the claim: one number is the state's own count of enrollees who already met the requirement, and the other is a projection by outside researchers. They are not in conflict. They answer different questions.

What Medicaid is not

The program has several limits that people forget, and each one produces a standard error in political talk.

• Medicaid is not cash assistance. The program pays providers and health plans. A beneficiary does not receive a check for groceries or rent. The state has a separate cash program, Aid to the Aged, Blind and Disabled, discussed in Lesson 3.
• Medicaid is not available to everyone below an income line. Eligibility needs both an income level and a category. Before expansion, a childless adult in Idaho with no income was in no covered group, which created the coverage gap that Lesson 2 describes.
• Medicaid is not an open-ended federal commitment in every part. Federal law caps or conditions parts of it, such as the 90 percent expansion match, the work requirement rules, and the limits on provider taxes and state-directed payments that H.R. 1 phases in from 2028.
• Medicaid is not the same as the Catastrophic Health Care Cost Program (CAT). CAT is a county and state program under Idaho Code Title 31 chapter 35 that pays large hospital bills for people who cannot pay. Counties pay the first $11,000 of eligible claims in 12 months and the state pays above that. Lesson 2 shows how expansion changed CAT.
• Medicaid is not decided in one place. A reader who watches only the Legislature misses the federal rules, and a reader who watches only Washington misses the DHW rules that apply them.

Where this fits in the rest of the course

The next lesson, How Idaho Got Expansion, traces how voters created the expansion group in 2018, how lawmakers added conditions in 2019, and what the courts said. Lesson 3 sets out the income tests with real dollar amounts. Lesson 4 explains who writes each kind of rule, using ideas from the Laws and Rules course, and Lesson 5 follows the money through the Legislature. If you want to practice the number-checking habits in this lesson on any statistic, the Data and Statistics course has a lesson built for that.

Counties come into this story as well. Under the Catastrophic Health Care Cost Program, county commissioners are the first payer on large unpaid medical bills, so a change in Medicaid coverage can change what a county board sees on its bills. County commissioners reading this should look at the Local Government course and at the Elected Officials pages on commissioner authority and budgets and fiscal duty.

Your next step is small and concrete. Open the DHW income limits page, find the monthly limit for a household of two, and write it down: $2,489 as of the April 2026 update. Then open KFF's matching-rate table and write down Idaho's FY2027 rate. With those two numbers in hand you can check the first Medicaid claim you hear this week.