That means that those 600,000 New Yorkers' medical care would cost an average of just $167 per person, a laughably low estimate at the cost of a medical care visit.
One question is whether undocumented immigrants will sign up at a time when the federal government has increased deportation efforts, said David Sandman, CEO of the New York State Health Foundation, a health care policy, research and grantmaking organization.
In a tweet, de Blasio said the plan will "ensure the first stop for people isn't the emergency room".
Funding for the new program will require no tax hikes, the mayor said.
Under NYC Care, as the city's program is being called, uninsured New Yorkers will be able to call a central phone number to get an insurance card and be assigned a doctor, giving them access to primary care and an array of specialty services, the mayor said.
"No one should have to live in fear".
De Blasio explained a day earlier that the plan, referred to as "NYC Care", will reach almost 600,000 New Yorkers and cost taxpayers at least $100 million.
De Blasio's office credited the law, informally known as Obamacare, with bringing the number of uninsured Americans down to almost half of what it was in 2013.
"To break those old habits and get them to rely upon a primary care provider does have to include convenience and access", he said. "It is the worst way to get health care".
"No state has more at stake on the issue of health care".
NYC Care will launch in summer 2019 and will roll out gradually in different parts of the city, starting in the Bronx, according to the release. "We are saying the word "guarantee" because we can make it happen", he announced, pledging to put $100 million toward the new initiative.
We have to start somewhere.
'To me that is the moral choice and a smart economic choice because we're not doing the insane thing which is making the emergency room the first place people turn to'.
Healthcare-for-all provides coverage for all, reduces the burden on small businesses to offer and pay for health coverage, addresses the business myth that it's cost prohibitive to hire certain workers because their health coverage is too expensive.
"Health care is a right, not a privilege reserved for those who can afford it", De Blasio concluded. The announcement makes NY the second US city to attempt to provide health care to everyone living there, coming about a dozen years after San Francisco pioneered the idea with a more limited promise.
Not everyone is a huge fan. "At Lincoln, we aim to establish best practices that combine physical and mental health-two services which have historically been treated separately", said Milton Nuñez, then as now Lincoln's director-words not much different from what Chirlane McCray said at Tuesday's "revolutionary" press conference.