Medicare began in 1965 as a federal health insurance program for people 65 and older

President Lyndon B. Johnson signed Medicare into law on July 30, 1965. The program started on July 1, 1966. At that time, most Americans over 65 had no health insurance at all — many were too old or too sick for private insurers to cover them. Medicare was created to change that.

Before Medicare existed, seniors often chose between paying for medical care and paying for food or housing. Hospital stays could wipe out a lifetime of savings. The program was built on the idea that people who had worked their whole lives deserved access to medical care in their later years.

The law that created Medicare also created Medicaid the same day. Medicaid is a separate program for people with low income, regardless of age. The two programs are often confused because they were born together, but they work differently and cover different groups of people.

Key Takeaways

  • Medicare was signed into law on July 30, 1965, and coverage began on July 1, 1966.
  • The program was created because most Americans over 65 had no health insurance and could not afford medical care.
  • Medicare originally covered hospital care and some doctor visits, but the program has expanded several times since then.
  • Today, Medicare is the largest health insurance program in the United States, covering more than 66 million people.

What Medicare covered when it first started

The original Medicare program had two parts. Part A covered hospital stays, skilled nursing care after a hospital stay, and some home health services. Part B covered doctor visits and outpatient care. Neither part covered prescription drugs, dental care, vision care, or hearing aids.

When Medicare began, enrollment was voluntary. Seniors had to sign up during a seven-month window in 1965. About 19 million people enrolled in the first year. The program was funded through payroll taxes — money taken from workers' paychecks — just like Social Security.

The original law set the age for Medicare may be able to access at 65. That age was chosen because it matched the age when Social Security retirement benefits began. It was not based on when people typically needed the most medical care; it was straightforward the existing retirement age.

How Medicare has changed since 1966

Medicare has grown and changed many times. In 1972, the program expanded to cover people under 65 who had been receiving Social Security disability benefits for two years, and people of any age with end-stage renal disease (permanent kidney failure). This was the first time Medicare covered anyone younger than 65.

In 1988, Congress added Part C, which allows seniors to get their Medicare coverage through private insurance companies instead of the government. Part C plans, also called Medicare Advantage, became available in 1992. These plans often include prescription drug coverage and other benefits that original Medicare does not.

In 2006, Part D began. This is prescription drug coverage that seniors can add to original Medicare. Before Part D, Medicare did not cover any medications at all. The addition of drug coverage was one of the biggest changes to the program since it started.

Why Medicare was created in the first place

In the early 1960s, the United States had no national health insurance. Seniors were the group hit hardest. Insurance companies would not sell policies to people over 65 because they were likely to need expensive care. Even seniors who could afford insurance often could not find anyone willing to sell it to them.

Studies at the time showed that seniors spent far more of their income on medical care than younger people did. Many went without needed treatment because they could not pay. Hospital bills could force a senior to move in with their children or lose their home.

The push for Medicare came from labor unions, senior advocacy groups, and doctors who believed the system was broken. It took years of debate in Congress. Some people argued that the government should not run an insurance program. Others said it was the only way to make sure seniors could see a doctor without going broke.

How many people use Medicare today

Medicare has grown far beyond what the creators imagined. In 1966, about 19 million people were enrolled. Today, more than 66 million people have Medicare coverage. That includes seniors over 65, younger people with disabilities, and people with end-stage renal disease.

Medicare is now the second-largest health insurance program in the United States, after Medicaid. It covers about one in five Americans. The program spends hundreds of billions of dollars each year on hospital care, doctor visits, prescription drugs, and other medical services.

The growth has created challenges. Medicare's hospital insurance fund (Part A) is funded by payroll taxes, and some experts worry that as more people retire and fewer workers pay taxes, the fund will not have enough money. Congress has discussed ways to keep Medicare stable, but no major changes have been made to the program's funding since 1983.

What the original Medicare law said about coverage

The law that created Medicare, called the Social Security Amendments of 1965, was surprisingly short about what would be covered. It said Medicare would pay for "reasonable charges" for hospital care and doctor services. It did not define "reasonable" in detail — that was left to the government to figure out as the program ran.

The law also said that Medicare could not pay for certain things. It excluded routine dental care, routine vision care, hearing aids, and most prescription drugs. These exclusions were partly about cost — the government wanted to keep the program affordable — and partly about what was considered "medical" care at the time.

Over the decades, Congress has changed what Medicare covers by passing new laws. Each change has been debated. Some people argue that Medicare should cover more services, like dental and vision care. Others say the program is already too expensive and should not expand. These debates continue today.

How Medicare fits into the larger history of health insurance in America

Before Medicare, health insurance in the United States was mostly tied to employment. If you worked for a large company, your employer might offer health insurance. If you were self-employed, retired, or worked for a small business, you were on your own. This system left out millions of people, especially seniors and the poor.

Medicare was the first major federal health insurance program. It showed that the government could run a large insurance program. Medicaid, created at the same time, showed that the government could insure people with low income. These two programs became the foundation for how the United States handles health insurance for vulnerable groups.

The creation of Medicare also changed how hospitals and doctors worked. Before Medicare, hospitals often provided free care to seniors who could not pay. Once Medicare began, the government paid hospitals directly. This changed the financial structure of American hospitals and made it possible for more seniors to get care.

Frequently Asked Questions

Why did the government choose age 65 for Medicare?

Age 65 was chosen because it was already the age when Social Security retirement benefits began. The creators of Medicare wanted to use an age that was already in the law. It was not based on medical need — people do not suddenly need more health care at 65 than they did at 64.

Did everyone have to join Medicare when it started?

No. When Medicare began in 1966, enrollment was voluntary. Seniors had to sign up during a seven-month window. Today, most people are automatically enrolled in Medicare when they turn 65, though they can decline it if they have other coverage.

What did seniors do for health insurance before Medicare?

Most seniors had no health insurance at all. Some had policies they bought when they were younger, but many insurance companies would not renew coverage for people over 65. Seniors often paid for medical care out of pocket, went without care they could not afford, or relied on charity care from hospitals.

Has Medicare always covered prescription drugs?

No. The original Medicare program in 1966 did not cover any prescription drugs. Part D prescription drug coverage did not begin until 2006. For 40 years, seniors on Medicare had to pay the full cost of their medications out of pocket.

Can people under 65 get Medicare?

Yes, but only in specific situations. People under 65 who have received Social Security disability benefits for two years are covered. People of any age with end-stage renal disease (permanent kidney failure) are also covered. Otherwise, Medicare is for people 65 and older.