Medicare Advantage

How Norwalk's 2027 Medicare plan count compares across the L.A. metro

Los Angeles County has 101 Medicare Advantage plans for 2027. Compared with 2026, 23 plans are not coming back, 26 are new, and 38 continuing plans changed in some way you should check before December 7, 23 of them under a new name. This guide covers what those numbers mean for Norwalk, not which plan to pick.

Medicare AdvantageNorwalk, CA

NORWALK, Calif. — If you live in Norwalk and you're sizing up Medicare coverage for 2027, it helps to know how many plans are actually on the table where you live — and how that compares to neighboring parts of the metro. Norwalk sits inside Los Angeles County, which is one of the largest Medicare markets in the country. That size shapes how many Medicare Advantage plans, carriers and drug options local residents see when they open Plan Finder.

The Norwalk-area picture at a glance

According to the 2027 CMS Medicare Advantage and Part D Landscape data, Los Angeles County has 101 Medicare Advantage plans available, offered by 20 carriers that sell MA-PD (Medicare Advantage with prescription drug coverage). That count is county-wide, so a Norwalk ZIP code, a Long Beach ZIP code and a Pasadena ZIP code all draw from the same overall Los Angeles County pool — though not every plan is sold in every ZIP.

Why "nearby areas" all look similar around Norwalk

Medicare plan availability is decided county by county, not city by city. That's an important detail for people in the Norwalk area, because Norwalk borders cities such as Cerritos, Bellflower, Downey, Santa Fe Springs and La Mirada. Most of those neighbors sit in the same county — Los Angeles — so they generally share the same 121-plan Medicare Advantage menu and the same 19 MA-PD carriers.

Cross a county line, though, and the lineup can shift. La Mirada residents on the eastern edge of the metro, for example, are still in Los Angeles County, but drive a few more miles into Orange County and the plan list changes. That's why two people who feel like "neighbors" can end up with different options.

How the county compares on plan volume

Los Angeles County's 121 Medicare Advantage plans put the Norwalk area among the most plan-dense markets in California. For context:

• 101 MA plans available county-wide for 2027.
• 19 carriers offering Medicare Advantage with prescription drug coverage.
• About 1,487,700 residents age 65 and older living in the county.

A big population and a crowded carrier field usually mean more plan choices — but also more homework. It's common for a Norwalk resident to see dozens of plans on medicare.gov, which is why comparing on the details that matter to you (doctors, hospitals, prescriptions, travel) is more useful than counting logos.

What about stand-alone drug plans and star ratings?

Two other pieces of the local snapshot are worth flagging honestly:

• The CMS 2027 Landscape file shows 0 stand-alone Part D prescription drug plans listed in the county-level Medicare Advantage and Part D file used for this snapshot. If you have Original Medicare and want drug coverage, look up stand-alone Part D options directly on medicare.gov using your ZIP code — the Plan Finder tool will show every PDP you're eligible to join.
• The same file shows 0 contracts rated 4 stars or higher in the area's landscape summary. Star Ratings are CMS's yearly quality measure for Medicare Advantage and Part D contracts. They can be a useful data point, but they're not a shopping shortcut — a plan's network, drug list and total costs still matter more for most people.

We're not using this to push you toward or away from any plan; it's just what the public file says. When you shop, medicare.gov shows the current star rating next to each plan.

2027 rules that apply everywhere, including Norwalk

Some things don't depend on your ZIP code. For 2027:

• Part D has a $2,100 in 2026 ($2,400 in 2027) annual out-of-pocket cap on covered prescriptions.
• The Part D deductible can be no higher than $615 in 2026 ($700 in 2027).
• The old "donut hole" coverage gap is gone as of 2025 — Part D now has three phases (deductible, initial coverage, catastrophic).
• The Medicare Prescription Payment Plan lets you spread your drug costs across the calendar year in monthly amounts instead of paying at the pharmacy counter.
• IRMAA (the income-related surcharge on Part B and Part D) starts above $109,000 in income for a single filer in 2026.

Key dates to keep in mind

• Oct. 15 – Dec. 7: Medicare Annual Enrollment Period. You can join, switch or drop Medicare Advantage and Part D plans. Changes take effect Jan. 1.
• Jan. 1 – March 31: Medicare Advantage Open Enrollment Period. If you're already in a Medicare Advantage plan, you get one chance to switch to another MA plan or return to Original Medicare (and add a Part D plan).