What are the Most Widely Used Health Insurance Companies?

This article provides an overview of the 50 largest health insurance companies in the US including their features plans & ratings.

Dozens of companies offer health insurance in the United States, but some of them are more well-known than others. This article will provide an overview of the 50 largest health insurance companies in the US, including their features, plans, and ratings. Featured Health Insurance Partners offers plans in all 50 states and Washington, D. C.

The company specializes in a care model that encourages teams of experts to collaborate across departments and specialties, such as cancer care, heart care, maternity and pediatrics. This helps accelerate the process of diagnosis, treatment and recovery. Elevance Health, formerly known as Anthem, has the Anthem and Wellpoint brands, which include several Blue Cross Blue Shield plans. It is the largest customer-owned health insurer in the United States and serves members in five states. It operates Blue Cross Blue Shield plans in Illinois, Montana, New Mexico, Oklahoma and Texas. HCSC affiliates and subsidiaries offer other types of coverage, including group life, disability and dental insurance.

UnitedHealth Group, the parent company of UnitedHealthcare, provides Affordable Care Act (ACA) market coverage to individuals and families in 18 states. UnitedHealthcare has partnerships with more than 1.3 million medical providers and 6,500 hospitals and other types of care facilities in the US. These are the most important health insurance companies for individual health insurance and plans in the ACA market. United States has the largest number of individual health insured persons in the United States with 13.26% of the market share. Kaiser Permanente is the largest group health insurance company in the US with 14.85% of the group health insurance market. Kaiser Permanente is also the largest overall health insurer with 12.81% of the total insurance market for Health.

The Kaiser Permanente provider network includes 23,656 doctors, 65,005 nurses, 734 doctors' offices and 39 hospitals. Choosing a great health insurance company has its advantages. Large insurers may have large networks of healthcare providers and hospitals, increasing their range of options. As with any type of insurance product, the right choice is the one that best fits your individual wants and needs.

Blue Cross Blue Shield

Blue Cross Blue Shield offers the best value for money and excellent ratings. It has an average rating of 3.7 out of 5 stars in the NCQA, the second highest among insurers that we analyze.

In addition to HMO plans, BCBS offers PPO, EPO, and POS plans which is great if you don't want to be restricted to network providers. Plans are available nationwide but vary by region; Marketplace plans aren't available in all areas. Blue Cross Blue Shield is also an excellent choice for small business health insurance plans and is our best option in that category.

Kaiser Permanente

Kaiser Permanente is only available in eight states and the District of Columbia; it generally offers HMO plans which restrict care to network providers.

Kaiser Permanente offers four Metal Levels Plus plans with minimum coverage so people looking for an HMO in one of these states have a good range of options. The company also offers medical treatment programs for several conditions including depression.


Aetna also offers great value for money if you want to enjoy the convenience of CVS MinuteClinic services.


UnitedHealthcare is a good choice especially if you're looking for a Medicare Advantage plan or short-term coverage.


Oscar plans only received a 2-star rating from Healthcare.gov and an average rating of 2.75 stars from NCQA; these ratings indicate relatively poor member experiences compared to other companies.

Alternative Health Benefits

Alternative health benefits such as health reimbursement agreements (HRA) and employee stipends are also available to organizations of all sizes. An HRA is an IRS-approved employer-funded health benefit that allows you to reimburse your employees for qualifying medical expenses tax-free.

Health Savings Accounts (HSA)

A Health Savings Account (HSA) is a tax-advantaged savings account used in conjunction with an HSA-compatible high-deductible health plan (HDHP) to pay for their medical expenses; it offers tax advantages to those who meet certain requirements.

Ultimately your options are limited by availability of plans in your state and by drugs and services you need them to cover. However if you're looking for well-managed plans and a positive member experience Blue Cross Blue Shield offers good value for money and great ratings; if Kaiser Permanente serves your area and you prefer an HMO there's nothing better than your plan ratings or your customer satisfaction record; if you need most affordable plan Oscar is one of companies you should consider as is Aetna especially if you qualify for early tax credits for premiums; Aetna also offers great value for money if you want to enjoy convenience CVS MinuteClinic services; And UnitedHealthcare is good choice especially if you're looking for Medicare Advantage plan or short-term coverage. There are other ways to get health insurance coverage if you don't have comprehensive affordable health insurance through employment such as HRAs which are IRS-approved employer-funded health benefits that allow you to reimburse your employees for qualifying medical expenses including individual health insurance premiums and out-of-pocket expenses tax-free. Whether you're looking for individual health insurance for yourself or group health insurance for your employees a wide range of plan options are available however size of a health insurer should not be only criteria you consider when choosing health insurance.

Maryann Bisarra
Maryann Bisarra

Hardcore social media evangelist. Certified food fan. Hipster-friendly pop cultureaholic Passionate bacon trailblazer. Certified pop culture advocate.

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