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Aetna Medicare Advantage HMO 2027: Networks, Referrals and Costs

Reviewed by Russell Noga, Licensed Medicare Insurance Broker — Last updated August 8, 2026

Aetna is one of the major carriers offering Medicare Advantage HMO plans for 2027. This page covers how Aetna’s HMO plans typically work, what to expect for 2027, and how they compare to other carriers before you enroll.

For a full breakdown of how HMO plans work in general — network rules, referrals, and cost structure — see our complete 2027 Medicare Advantage guide.

Or compare other Aetna 2027 Medicare Advantage plans such as PPOs in your area by ZIP code to see real options now.

Compare Aetna Medicare plans and enroll online

About Aetna Medicare Advantage HMO Plans

Aetna, a CVS Health company, is one of the larger carriers offering Medicare Advantage plans nationwide, including HMO options in many counties. Aetna’s HMO plans generally require members to use a network of doctors and hospitals, coordinated through a primary care physician.

Like all Medicare Advantage plans, Aetna’s HMO plans must cover everything Original Medicare Part A and Part B cover, and often add supplemental benefits — though specific extras depend on the plan and your ZIP code.

How Aetna HMO Plans Work

Aetna Medicare Advantage HMO plans for 2027

With an Aetna HMO plan, you’ll typically choose a primary care physician (PCP) who coordinates your care and provides referrals to specialists within the network. Except for emergency or urgent care, staying in-network is generally required for coverage.

Many Aetna HMO plans bundle in Part D prescription drug coverage — if your plan includes it, you generally can’t also enroll in a stand-alone Part D plan.

What Aetna HMO Plans May Offer for 2027

Aetna Medicare Advantage benefits in 2027

Aetna Medicare Advantage Plans in 2027 have specific details — premiums, star ratings, and supplemental benefits — that are finalized by CMS and released publicly during the Annual Enrollment Period. Based on how Aetna has historically structured its HMO plans, 2027 offerings may include:

  • Prescription drug coverage bundled into many HMO plans
  • Dental, vision, and hearing benefits on select plans
  • Over-the-counter (OTC) allowances on select plans
  • Fitness program access (such as SilverSneakers) on select plans

Not all plans offer all benefits, and availability depends on your specific plan and service area. Confirm 2027 benefits directly with a licensed agent or the plan’s official Summary of Benefits before enrolling.

Aetna HMO Network & Provider Access

Aetna Medicare network and providers for 2027

Aetna’s HMO network size and specific participating doctors and hospitals vary by county.

Because HMO plans generally require in-network care except for emergencies, it’s especially important to confirm that your current doctors, specialists, and preferred hospital are in Aetna’s network before enrolling — and to recheck this each year, since network participation can change for 2027.

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What Might Aetna HMO Plans Cost in 2027?

cost for 2027 Medicare Advantage Plans from Aetna

Monthly premium: Aetna offers $0-premium HMO plans in many areas, but availability depends on your ZIP code — you’ll still pay your Medicare Part B premium

Deductibles & copays: vary by specific plan; confirm against the plan’s official Summary of Benefits

Out-of-pocket maximum: Aetna HMO plans, like all Medicare Advantage plans, cap your annual out-of-pocket spending

Extra benefits: dental, vision, hearing, and OTC allowances vary by specific plan and ZIP code

Is an Aetna HMO Plan Right for You?

An Aetna HMO plan tends to be worth considering if you:

  • Don’t mind coordinating care through a primary care physician
  • Want lower premiums and copays in exchange for staying in-network
  • Are interested in plans that may bundle dental, vision, and hearing benefits

If you’d rather see providers without referrals or want more out-of-network flexibility, a PPO plan — from Aetna or another carrier — may be a better fit. See our plan types comparison for more detail.

How to Enroll in an Aetna HMO Plan for 2027

Medicare advantage plan enrollment for 2027

You can enroll in or switch to an Aetna Medicare Advantage HMO plan during the Medicare Annual Enrollment Period, October 15 – December 7, 2026, for coverage effective January 1, 2027.

 

Compare Aetna Medicare plans and enroll online

Aetna Medicare Advantage HMO 2027 — Frequently Asked Questions

Aetna Medicare Advantage HMO 2027 — Frequently Asked Questions

  Does Aetna offer $0 premium Medicare Advantage HMO plans for 2027?

Aetna offers $0-premium HMO plans in many areas, though availability depends on your specific ZIP code and county. You’ll still need to pay your Medicare Part B premium regardless of which plan you choose. Specific 2027 plan premiums and benefits publish October 1, 2026.

  Do I need a referral to see a specialist with an Aetna HMO plan?

Generally yes. Aetna HMO plans typically require a referral from your primary care physician to see a specialist, except in emergencies. If you’d prefer not to need referrals, a PPO plan may be a better fit.

  Does Aetna’s HMO plan include prescription drug coverage?

Many Aetna HMO plans bundle in Part D prescription drug coverage, but not all do. If your plan includes it, you generally can’t also enroll in a separate stand-alone Part D plan. Confirm coverage details for any specific plan before enrolling.

  How does Aetna’s HMO plan compare to other carriers’ HMO plans?

All Medicare Advantage HMO plans follow the same basic structure — network-based care coordinated through a primary doctor — but specific costs, networks, and extra benefits vary by carrier and ZIP code. Comparing plans side by side is the best way to see which carrier fits your situation.

  When can I enroll in an Aetna 2027 Medicare Advantage HMO plan?

You can enroll during the Annual Enrollment Period, October 15 – December 7, 2026, for coverage effective January 1, 2027. If you’re new to Medicare, you may also be able to enroll during your Initial Enrollment Period.

Have Questions?

Speak with a licensed insurance agent

1-855-454-9051

TTY users 711

Mon-Fri: 8am-9pm ET

Find & Compare Plans Online

Speak with a licensed insurance agent

1-855-454-9051TTY 711

Mon-Fri: 8am-9pm ET

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