What are the eligibility requirements for Aetna plans?
Short answer
Insurance question
Eligibility for an Aetna plan depends on the type of coverage you are seeking. For Marketplace individual plans, most legal US residents can enroll during open enrollment. For employer plans, your employer must offer Aetna and you must meet employment requirements. For Medicare Advantage, you must be enrolled in Medicare Part A and B. Pre-existing conditions cannot disqualify you from ACA-compliant plans.
This is an independent research summary, not official coverage information. Your plan is the final word.
Key facts
ACA Marketplace open enrollment typically runs November 1 through January 15 — outside this window, a qualifying event is needed.
Medicare Annual Election Period for plan changes runs October 15 through December 7 each year.
Medicare.gov — Joining a plan (enrollment periods for Medicare health and drug plans).
ACA-compliant plans cannot deny enrollment or charge higher premiums based on pre-existing conditions.
Here's the nuance
A one-liner rarely tells the whole story. This is the honest detail behind the short answer above.
Aetna, now part of CVS Health, is one of the largest US health insurers. It offers several distinct plan types, each with its own eligibility framework.
For ACA Marketplace individual and family plans, eligibility is broad. Most US citizens and lawfully present immigrants who reside in a state where Aetna offers Marketplace coverage can enroll during the annual open enrollment period (typically November through January). If you experience a qualifying life event — such as losing job-based coverage, getting married, having a child, or moving — you may qualify for a Special Enrollment Period. Under the ACA, Aetna cannot deny you enrollment or charge more because of your health history, age, gender (other than for certain grandfathered plans), or pre-existing conditions.
For employer-sponsored group plans, eligibility depends on your employment with a company that has chosen Aetna as its insurance carrier. Your employer sets the eligibility rules for coverage (such as full-time vs. part-time status, waiting periods before coverage begins, and dependent eligibility). You cannot enroll in an employer Aetna plan independently.
For Aetna Medicare Advantage plans, you must be enrolled in Medicare Part A and Part B (Original Medicare) — typically available to those aged 65 or older, or younger individuals who qualify through disability or certain conditions. You must also live in a county where Aetna offers a Medicare Advantage plan. You can switch Aetna Medicare Advantage plans or return to Original Medicare during Medicare's annual election period (October 15 through December 7 each year).
Aetna also participates in some state Medicaid programs through its CVS Health / Aetna Better Health subsidiaries. Medicaid eligibility is income- and state-based. For any plan type, the fastest path to confirming eligibility is visiting aetna.com, HealthCare.gov, or Medicare.gov.
The key points
The handful of things that decide the answer — skim these if you only read one section.
ACA Marketplace plans are open to most legal residents
During open enrollment, most US citizens and lawfully present immigrants can enroll in an Aetna Marketplace plan regardless of age, health status, or income. Pre-existing conditions cannot be used to deny you.
Employer plan eligibility is set by your employer
To enroll in an Aetna employer-sponsored plan, your company must offer Aetna and you must meet your employer's eligibility rules (full-time status, waiting period, etc.).
Medicare Advantage requires Original Medicare enrollment
Aetna Medicare Advantage plans require that you be enrolled in Medicare Part A and Part B. Most people qualify at age 65 or through disability. You must also live in Aetna's Medicare Advantage service area.
Health history cannot be used to deny ACA-compliant plan enrollment
Under ACA guaranteed issue rules, Aetna cannot deny or restrict enrollment in Marketplace or most employer group plans based on pre-existing conditions, medical history, or health status.
Special Enrollment Periods allow enrollment outside open enrollment
Qualifying life events — losing coverage, moving, getting married, or having a child — trigger a Special Enrollment Period during which you can sign up for an Aetna Marketplace plan outside the standard open enrollment window.
Confirm before you rely on this
Coverage varies by plan — this is not official
Coverage rules, benefit tiers, and medical-necessity criteria change often and differ by plan type, state, employer, and your specific policy. This page is a general, independent research summary — it is not official information from any insurer, not a benefits determination, and not financial or insurance advice.
Verify your exact coverage by calling the member number on your insurance card or checking your plan documents before you rely on any answer here.
Frequently Asked Questions
Yes — if your employer does not offer Aetna (or any employer coverage), you can shop for an individual Aetna Marketplace plan during open enrollment at HealthCare.gov or on Aetna's website, in states where Aetna participates. Marketplace plans are available to individuals and families who are not enrolled in eligible employer coverage.
No — Aetna does not offer plans in every state. Aetna's Marketplace participation varies by state and county. For Medicare Advantage, availability depends on your county. Check aetna.com or HealthCare.gov to see what Aetna plans are available where you live.
If you miss the annual open enrollment period without a qualifying life event, you generally cannot enroll in an Aetna Marketplace plan until the next open enrollment period. If you have a qualifying life event (such as losing other coverage, moving, or having a baby), you trigger a Special Enrollment Period. For Medicare Advantage, the Annual Election Period (October 15 to December 7) and Special Enrollment Periods apply.
Yes. Aetna Marketplace plans allow you to add dependents — typically a spouse and children up to age 26 — to your coverage. Employer-sponsored Aetna plans have dependent eligibility rules set by the employer. Aetna Medicare Advantage plans cover only the enrolled Medicare beneficiary; spouses must enroll in their own plan. Check your specific plan's Summary of Benefits for dependent eligibility rules.
Reviewed by
Curex Editorial TeamReviewed for accuracy
Last reviewed July 2026
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This page is independent research, not a benefits determination — your insurer's answer is the one that counts.
This content is for general informational purposes only. It is not official coverage information, a benefits determination, or financial or insurance advice. Coverage rules, benefit tiers, and medical-necessity criteria change often and vary by plan, state, and effective date — always verify your specific benefits directly with your insurer before making any decision.
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