Is UnitedHealthcare leaving Medicare Advantage in Arizona for 2027?

No. UnitedHealthcare is staying in Arizona for 2027, and in Maricopa County it is staying whole. The non-renewal letters dated October 2 are going to about 390,000 members nationally, but every AARP Medicare Advantage plan sold in Maricopa County this year is on the 2027 list, and the two Arizona plans that did end were sold only in rural counties and carried about 700 members between them. What a Peoria household gets instead is an Annual Notice of Change with real movement in it: the county’s largest AARP plan keeps its $0 premium but its cap rises $600, the Part D deductible on all four plans goes from $440 to $685, and a new drug-free AARP plan joins the list.

I am writing this one for Peoria because the AARP name is the one I hear most from north Peoria households, and for a reason that has nothing to do with Arizona. A lot of 85383 arrived here already carrying an AARP plan from Illinois, Michigan or Minnesota, moved it across at the new address, and have never shopped since. For them, this week’s headlines read like a reason to worry. The CMS files say the opposite, and then say something more useful: your plan is not ending, but it is not the same plan either.

What is happening nationally

UnitedHealthcare’s own provider FAQ sets out the mechanics. Effective January 1, 2027 it is “reducing some service areas and discontinuing some plans,” affected members get non-renewal notices dated October 2, 2026, and anyone who does not pick another plan “will automatically return to Original Medicare on Jan. 1, 2027.” The FAQ is explicit that a discontinued plan’s drug coverage goes with it.

The scale came on October 2, when the company told reporters roughly 390,000 members are in plans being discontinued. Its president, Bobby Hunter, put it this way: “We can’t ignore the realities facing the healthcare system. Funding pressures, rising medical costs, rising drug costs, and increased utilization are affecting every part of healthcare.” Healthcare Dive’s September 29 reading of the CMS landscape file counts about 690 UnitedHealthcare plans cut and 63 counties exited, alongside two numbers that matter more to Arizona: a maximum out-of-pocket limit up about 11 percent across its book and a Part D deductible up about 33 percent.

Humana, by the same reporting, is exiting plans covering about 600,000 members. None of this is a judgment on the plans or the people in them; it is a national repricing, and it lands unevenly. Which Arizona plans are ending for 2027 has the whole state picture across every carrier.

Plan by plan: UnitedHealthcare in Arizona, 2026 against 2027

This comes from the CMS landscape files for the two years, matched by contract and plan number rather than plan name, with September 2026 county enrollment from the CMS monthly file. Twenty-one UnitedHealthcare plans were sold in Arizona in 2026 and twenty-one are sold in 2027: two ended, two are new. The 2027 Star Ratings are blank in the file until CMS publishes them this month; the stars below are the 2026 ratings now in force.

Source: CMS CY2026 and CY2027 Medicare Advantage / Part D Landscape files and the September 2026 CPSC enrollment file, Arizona rows, matched by Contract Plan ID. Caps are in-network maximum out-of-pocket amounts. The Pima County plans (Essentials AZ-1, Extras AZ-4, AZ-0007, AZ-0011, AZ-0013) all continue and are omitted; the 2026 rural Patriot No Rx PPO continues in its 13 counties; the dual-eligible, chronic-condition and nursing-home plans are not shown. Member totals exclude counties CMS suppresses at fewer than eleven enrollees.

Three things to read off that table.

Nothing ended in Maricopa County. The four general AARP plans continue under the same contract and plan numbers, which is the only kind of continuity that counts — a shared name under a new number is a new plan with a new network. Between them they carried about 72,000 Maricopa members in September, and once the dual-eligible and chronic-condition plans are added UnitedHealthcare covers more Medicare Advantage members in this county than any other carrier. If you are one of them and a letter dated October 2 arrives, read it twice: a Maricopa AARP member should be holding an Annual Notice of Change, not a non-renewal.

The caps moved, and the biggest plan moved most. AZ-002P is the single largest AARP plan in the county, with nearly 40,000 Maricopa members, and it keeps the $0 premium while its in-network cap goes from $2,900 to $3,500. Extras AZ-5 goes from $4,200 to $5,400, a $1,200 move. Essentials AZ-2 is the one that held. The Part D deductible on all four rises from $440 to $685, which on a plan that is “$0 a month” is where the year’s cost actually shows up for anyone on a brand-name drug. That is the 33 percent Healthcare Dive measured across the whole book, arriving in Peoria mailboxes.

The two ended plans are small and rural. Access AZ-15 was the $295-a-month PPO with a $3,000 cap sold in the twelve counties outside Maricopa, Pima and Pinal — 301 members statewide. CareFlex AZ-17 had 426 across Pima, Graham and Santa Cruz. Those members have the full non-renewal rights described below. Everyone else in the rural counties keeps AZ-0010 at $0 and AZ-0008 at $64, both with a cap now at $7,150, and the Patriot No Rx PPO.

If you are on an AARP plan in Peoria: read the notice, not the headlines

Your plan continues, so the document that matters is the Annual Notice of Change that arrived by September 30, and the deadline that matters is December 7. You can stay without doing anything, and most members will. What I would check before deciding, in this order:

1. The cap, against last year’s actual spending. A $600 higher cap only costs you $600 if you reach it. Pull the explanation-of-benefits totals for the year; if you were nowhere near $2,900, the new $3,500 is a number on paper. If you had a surgery or an infusion year, it is real money.
2. The Part D deductible, against your own prescriptions. $685 before the plan pays on the tiers the deductible applies to is a bigger change for a household on two brand-name drugs than the cap is. All four Maricopa AARP plans are flagged in the CMS file as having at least one tier the deductible does not apply to; which tiers those are is in the notice, as is whether your own drugs moved tier. Every plan with drug coverage carries the 2027 out-of-pocket cap on covered drugs regardless.
3. The network, which resets in January. This is the north Peoria check. Most households up here see specialists in Sun City or at Arrowhead, and the hospital question is Banner Boswell, Abrazo Arrowhead or Banner Thunderbird. The groups inside a hospital contract separately from the building. How Advantage networks are built explains why the directory logo is not the whole answer; a call to the practice asking “will you be in network with this plan on January 1?” is.
4. Your own ZIP. Peoria quotes pull from the ZIP, and the Peoria–Glendale–Sun City seam is stitched tightly enough that two houses a mile apart can see different line-ups. Why Peoria quotes differ by ZIP covers it.

If the answer to all four is “fine,” staying is a perfectly good decision. How to read the notice is the twenty-minute walk-through.

The new drug-free plan, and who it is actually for

The one genuinely new AARP plan in Maricopa County is Patriot No Rx AZ-MA2, an HMO-POS with no Part D coverage at all and a $7,150 cap. UnitedHealthcare sold a rural PPO version in Arizona this year; this is the first Maricopa one. A plan with no drug coverage is built for someone whose prescriptions are covered somewhere else — VA health care, or TRICARE For Life, which is why the name is what it is. For anyone else it is a trap with a clock on it: 63 days without creditable drug coverage and a permanent Part D penalty starts, and you cannot bolt a stand-alone drug plan onto an HMO. Whether you need Part D if you take nothing is the longer answer; the short one is that “no Rx” on the plan name is a feature only if you already have the drugs covered.

If you would rather be on a supplement

This is where the AARP post differs from the Aetna and Wellcare ones. A member whose plan is discontinued gets a federal guaranteed-issue right to a Medicare Supplement, no health questions, from November 1 to March 4. A member whose plan continues does not. Arizona has no birthday rule and no annual Medigap open window, so a Peoria AARP member who wants to move to Original Medicare with a supplement for 2027 applies during Annual Enrollment and answers the carrier’s health questions, and the answer can be no.

There are two exceptions worth knowing. The first is the trial right: if this is your first year ever in Medicare Advantage and you joined when you were first eligible, or you dropped a supplement to try Advantage for the first time, you can leave within twelve months and buy a supplement with no health questions. The second is the rural non-renewal: Access AZ-15 and CareFlex AZ-17 members have the guaranteed-issue window exactly as a discontinued-plan member anywhere does. For everyone else, the honest sequence is to check whether you would pass underwriting before you give up a plan that continues. Switching from Advantage to Medigap in Arizona is the detailed version; the structural cost is the Part B premium of $202.90 a month in 2026 that you already pay, plus the supplement, plus a stand-alone Part D plan, and Plan G against Plan N is the next read if you get that far.

If you are one of the 700

For Access AZ-15 or CareFlex AZ-17 members, and for the Peoria household with a parent in Prescott or Lake Havasu on one of them, the rules are the discontinued-plan rules. Coverage ends December 31. Annual Enrollment, October 15 to December 7, is the clean path to a January 1 start on another plan; UnitedHealthcare’s FAQ says affected members may enroll in another plan between October 15 and December 31 for a January 1 date, and the federal special period for a non-renewed plan runs to February 28, 2027, with Original Medicare in between. The Medigap guaranteed-issue window is November 1, 2026 to March 4, 2027 for Plans A, B, D, G, K and L. Do nothing and you are in Original Medicare on January 1 with no drug plan and no cap. What to do when your plan is discontinued walks the calendar week by week.

The dates

• October 15 to December 7, 2026. Annual Enrollment. For a continuing AARP plan, the only window to change for January 1; for anyone, the window to move to a supplement, with underwriting.
• December 7, 2026. If you have done nothing and your plan continues, you are in it for 2027 as described in the notice.
• November 1, 2026 to March 4, 2027. The Medigap guaranteed-issue window, for discontinued-plan members only.
• December 8, 2026 to February 28, 2027. The special period for a non-renewed plan.

The short version

• UnitedHealthcare is not leaving Arizona, and not leaving Maricopa County at all: all four general AARP plans continue under the same contract numbers, about 72,000 members’ worth.
• Two Arizona plans ended, Access AZ-15 and CareFlex AZ-17, both rural, about 700 members between them. The 390,000 letters are mostly addressed elsewhere.
• The change is in the Annual Notice of Change: AZ-002P’s cap goes from $2,900 to $3,500, Extras AZ-5 from $4,200 to $5,400, and the Part D deductible from $440 to $685 on every Maricopa AARP plan.
• A new Patriot No Rx HMO-POS has no drug coverage and is for households whose prescriptions are covered by the VA or TRICARE, not a cheaper version of the same plan.
• No guaranteed-issue Medigap right comes with a continuing plan. Check underwriting before giving up a plan that stays.

If you would rather have someone check it for you

Bring the notice, your cards and the pill bottles, and I will run your doctor list against the 2027 AARP network and everyone else’s in your ZIP, and put the new deductible against your own prescriptions, so the decision is arithmetic rather than a headline. It takes about half an hour and there is no charge for the conversation. I am independent, so the answer can be the plan you are on, another on the county list, or none of them.

I work with people across Peoria and on the Glendale side of the seam, where many of the same specialists are. The office is in Anthem, roughly 25 minutes from north Peoria out the Carefree Highway and down Lake Pleasant Parkway, and most of this gets done by phone. Call (602) 844-6002 or book a time — and if you call or text, that is your consent for me to reply the same way.