Cigna vs. Kaiser Permanente: 2026 Comparison


Cigna vs. Kaiser Permanente: ACA Health Insurance

In Moneygeek's analysis of 2026 ACA marketplace plans, Kaiser Permanente earned a 94.6 Quality Rating System score versus Cigna's 73.71 and approved 92% of claims versus Cigna's 77% approval rate. Kaiser Permanente's monthly premiums are $158 to $205 lower than Cigna's across both plan types. 

Cigna covers 11 states while Kaiser Permanente operates in seven, with Colorado and Virginia as the only overlapping markets. ACA plans apply to working-age adults under 65, while Medicare sections apply to adults 65 and older or those with qualifying disabilities.

Availability
11 States
7 States
Plan Types
HMO, EPO
HMO, EPO
Avg. QRS Score
73.71
94.6
Avg. Denial Rate
23%
8.3%

Neither insurer offers PPO or POS coverage. Both Cigna and Kaiser Permanente limit network options to HMO and EPO plans. HMO plans require selecting a primary care doctor who manages treatment and issues specialist referrals. Coverage is limited to network providers except for emergencies. EPO plans allow seeing specialists without referrals, but coverage is also limited to network providers except for emergency care.

Cigna vs. Kaiser Permanente: Medicare Supplement

Cigna sells Medicare Supplement plans in 43 states while Kaiser Permanente doesn't offer Medigap coverage at all. For Medicare Supplement shoppers, Cigna is the only choice between these two insurers.

Availability
43 States
N/A
Plan Types
A, B, C, D, F, G, N
N/A
High-Deductible F and G
Yes
N/A
Dominant Pricing Style
Attained Age
N/A

Cigna vs. Kaiser Permanente: Medicare Advantage

Cigna operates Medicare Advantage plans in 29 states compared to Kaiser Permanente's eight-state footprint. Cigna includes 86% of plans with $0 premiums versus Kaiser Permanente's 36%. Kaiser Permanente has a 4.37 CMS Star rating compared to Cigna's 3.66 and lower maximum out-of-pocket limits. Cigna offers PPO plans while Kaiser Permanente limits plan types to HMO and HMO-POS networks.

Availability
29 States
8 States
Plan Types
HMO, HMO-POS, PPO
HMO, HMO-POS
Avg. CMS Star Rating
3.66
4.37
Drug Benefits
Basic, Enhanced
Enhanced
% $0 Premium Plans
86%
36%

Which One Should You Choose?

Kaiser Permanente is the stronger ACA marketplace option: its 94.6 QRS score, 8.3% claim denial rate and lower premiums across both plan types make a clear case. Cigna is the only Medicare Supplement option since Kaiser Permanente doesn't sell Medigap. For Medicare Advantage, the choice comes down to priorities: Cigna's 86% zero-premium plans and 29-state reach versus Kaiser Permanente's 4.37 CMS star rating and $770 lower HMO out-of-pocket cap. Buyers in overlapping states with frequent care needs should lean toward Kaiser Permanente. Buyers prioritizing low monthly cost or PPO access should compare Cigna. 

Compare plans directly on the CMS Plan Finder to see which options are available in your ZIP code and confirm current premiums before enrolling.

Frequently Asked Questions

These answers cover the most common questions about how Cigna and Kaiser Permanente compare across ACA marketplace plans, Medicare Supplement and Medicare Advantage coverage:

Is Kaiser Permanente or Cigna better for ACA coverage?

Does Kaiser Permanente offer Medicare Supplement plans?

Which states have both Cigna and Kaiser Permanente ACA plans?

What is Kaiser Permanente's CMS Star rating for Medicare Advantage?

How does Cigna's Medicare Advantage compare to Kaiser Permanente on cost?

What Medigap plans does Cigna offer?

Does Cigna or Kaiser Permanente have better claim approval rates?

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About Mark Fitzpatrick


Mark Fitzpatrick, Licensed P&C Insurance Expert, MoneyGeek

Mark Fitzpatrick, a Licensed Property and Casualty (P&C) Insurance Producer in Connecticut, is MoneyGeek's resident insurance expert. He has spent nearly a decade analyzing the market, first at LendingTree and now at MoneyGeek, where he has produced original research on hundreds of carriers and millions of rates across auto, home, renters, health and life insurance.

He covers economics and insurance at MoneyGeek, and his work has been featured in The Washington Post, The New York Times and NPR, among other outlets.

Like all MoneyGeek analysts, he draws on independent cost and consumer experience data, and no insurance company partnership influences his recommendations.

Fitzpatrick earned his degrees from Johns Hopkins University (M.A. Economics and International Relations) and Boston College (B.A.). He began his career in financial risk management at State Street. He's also a five-time “Jeopardy!” champion.


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