Health care in America has entered a new phase

The Supreme Court's recent ruling on the Affordable Care Act (ACA) further solidified the landmark health care legislation known as Obamacare while the nation attempts to emerge from the coronavirus pandemic with a uniquely expensive health care system.

The 7-2 ruling enables "those who want to build on the ACA to look forward and assume the law will largely remain intact," Rachel Garfield, vice president at the Kaiser Family Foundation, told Yahoo Finance. "Health policy is always evolving, and it’s not 100% certain that there will never be another challenge to the ACA. But with tens of millions covered through ACA pathways, it will be much harder to undo the law over time."

The Supreme Court ruling comes amid a boom in Medicaid — a federal- and state-funded public health insurance program for low-income, pregnant, disabled, and other Americans and qualifying citizens — and an influx of funding for health care in the coronavirus stimulus bill passed in March.

Taken together, the focus is now on how health care in America will further evolve under President Biden.

NEW YORK, NEW YORK - APRIL 28: A medical worker stands outside NYU Langone Health hospital as people applaud to show their gratitude to medical staff and essential workers on the front lines of the coronavirus pandemic on April 28, 2020 in New York City. COVID-19 has spread to most countries around the world, claiming over 217,000 lives with over 3.1 million infections reported. (Photo by Noam Galai/Getty Images)
A medical worker stands outside NYU Langone Health hospital as people applaud to show their gratitude to medical staff and essential workers on the front lines of the coronavirus pandemic on April 28, 2020 in New York City. (Photo by Noam Galai/Getty Images) · Noam Galai via Getty Images

'Medicaid functioning as the safety net it was designed to be'

Medicaid has been around since 1965 and was dramatically expanded under the ACA to increase eligibility for low-income Americans.

The program became a lifeline for millions of Americans after the coronavirus pandemic led to massive job losses in the U.S., which led to widespread loss of employer-sponsored health coverage.

"[The boom] is Medicaid functioning as the safety net it was designed to be," Jennifer Wagner, director of Medicaid eligibility and enrollment at the Center on Budget and Policy Priorities, told Yahoo Finance. "For people experiencing a sudden job loss or decrease in income during the recession and others who were previously unenrolled feeling an increased need for health coverage during the pandemic, Medicaid was there for them."

Some Americans were able to obtain health insurance through an ACA special enrollment period, which involves the marketplaces opening up to people who experience a “qualifying event” such as the loss of a job. (President Biden also opened a special enrollment period earlier this year through executive order.)

For those who were unable to afford even ACA premiums, that leaves them with Medicaid. To qualify for Medicaid, a person must make up to 138% of the federal poverty level — which is currently $17,774 for a single individual.

And according to a new report from the Centers for Medicare & Medicaid Services (CMS), nearly 9.9 million people signed up for Medicaid between February 2020 and January 2021, a 13.9% increase.