The Most Important Mail You’ll Get All Year (It’s Not a Check)

If you’re on Medicare — or you live with, love, or occasionally answer the phone for someone who is — you know what late September brings: the mail avalanche. Glossy postcards. Envelopes stamped “URGENT” in a font usually reserved for jury summonses. A smiling man in a polo shirt promising benefits that sound suspiciously like a cruise.

Buried somewhere in that stack is a plain envelope from your own insurance company, and it may be the least-read important document in America: the Annual Notice of Change, or ANOC. Plans are required to get it to you by September 30, which means it’s either in your mailbox right now or in your recycling bin already. This year, of all years, it deserves five minutes and a cup of coffee.

What happened

A string of Medicare headlines over the past couple of weeks all point to the same conclusion: 2027 coverage is going to look more different from this year’s than usual.

On the provider side, at least 33 U.S. health systems have ended or are ending contracts with Medicare Advantage insurers in 2026, according to a tracker from Becker’s Hospital Review — and several of those splits take effect October 1, exactly two weeks before open enrollment begins. Humana alone has signaled plan exits affecting roughly 600,000 of its members for 2027. With Medicare Advantage now covering more than half of all Medicare beneficiaries, that churn touches a lot of households.

On the prescription side, drug-plan costs step up next year, a temporary federal subsidy that trimmed roughly $16 a month from drug-plan premiums expires after 2026, and the number of stand-alone drug plans has shrunk from about 30 on average five years ago to 11 today. Here’s the picture at a glance:

The 2027 Part B premium is a Medicare Trustees projection; the official figure is expected later this fall.

There’s real good news in the mix, too: Medicare’s negotiated prices on 15 high-spending drugs — including some widely used diabetes and cancer medications — take effect in 2027.

Even if you do nothing, your coverage will be different next year. “Doing nothing” is still a decision — it just skips the part where you find out what it costs.

By some estimates, nearly 70% of Medicare beneficiaries let their plan auto-renew without comparing alternatives. Most years, that’s merely suboptimal. This year, it could mean discovering in January that your hospital left your network in October.

What this means if retirement is on your horizon

A calm word before enrollment season

Medicare open enrollment runs October 15 through December 7. That’s plenty of time to read one letter, make a few calls, and compare plans without panic. Colorado’s State Health Insurance Assistance Program offers free, unbiased counseling, and Medicare.gov’s comparison tools are better than they used to be.

And if you’d like a second set of eyes on how healthcare costs fit into your broader retirement income plan — Medicare premiums, IRMAA, and all — we’re glad to help. Schedule a complimentary Colorado Retirement Clarity Review by phone or video, or visit us at our Englewood or Broomfield office. And if making your savings last is on your mind, join our free webinar, “The Retirement Income Gap: Making Savings Last 30 Years,” on September 29 — strictly educational, no sales pitch.