Updated July 2026 · IllinoisPlanFinder.com — Licensed Health Insurance Producer (NPN #21249133)

Oscar Health Insurance Plans in Buffalo Grove, Illinois

Oscar Health is one of 5 carriers offering marketplace health insurance plans in Buffalo Grove's Rating Area 3 for 2026.
Marketplace plans in Illinois include HMO, EPO, and PPO options, with subsidies available to reduce monthly premiums for eligible residents.
Adults in Illinois with income up to 138% of the Federal Poverty Level (FPL) may qualify for Illinois Medicaid.
Buffalo Grove, with a population of 42,891, has a low uninsured rate of 3.8% per U.S. Census Bureau ACS 2024 5-year estimates.

Navigating health insurance options in Buffalo Grove, Illinois, can seem complex, but understanding your choices, especially with carriers like Oscar Health, is straightforward. For 2026, Oscar Health provides marketplace plans in Buffalo Grove through GetCoveredIllinois, the state's official health insurance marketplace. These plans are designed to be affordable and comprehensive, offering essential health benefits as mandated by the Affordable Care Act (ACA). Whether you're looking for individual coverage or family plans, you can compare Oscar Health's offerings alongside other local carriers to find a plan that fits your needs and budget. Financial assistance in the form of premium tax credits and cost-sharing reductions is available to eligible Buffalo Grove residents, significantly lowering out-of-pocket costs.

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What Oscar Health Plans Are Available in Buffalo Grove?

Oscar Health is a confirmed carrier participating in Illinois Rating Area 3 for the 2026 plan year, which includes Buffalo Grove. Shoppers on GetCoveredIllinois will find a range of plan types, including Health Maintenance Organization (HMO) and Exclusive Provider Organization (EPO) plans, and potentially Preferred Provider Organization (PPO) plans. Illinois is one of the states where PPO plans are available on-exchange, offering more flexibility in choosing providers without a referral. When you shop for plans on GetCoveredIllinois, you can filter by carrier, metal tier (Bronze, Silver, Gold, Platinum), and plan type to see the specifics of Oscar Health's offerings in your exact ZIP code.

Buffalo Grove, located in Lake County, is part of Rating Area 3, which covers Lake and McHenry counties. This area is served by 5 marketplace carriers in 2026, including Oscar Health. With a population of 42,891 and a median household income of $129,395, Buffalo Grove residents have diverse options. The city's uninsured rate stands at a low 3.8%, reflecting broad access to coverage options, per U.S. Census Bureau ACS 2024 5-year estimates.

Understanding ACA Plan Tiers and Subsidies

ACA marketplace plans are categorized into metal tiers: Bronze, Silver, Gold, and Platinum. These tiers indicate how you and your plan share the cost of care:

Bronze plans: Have the lowest monthly premiums but the highest deductibles and out-of-pocket maximums. They cover about 60% of healthcare costs, leaving 40% for the enrollee.
Silver plans: Offer moderate premiums and deductibles. They cover about 70% of costs. Crucially, Silver plans are the only tier eligible for cost-sharing reductions (CSRs), which lower deductibles, copayments, and out-of-pocket maximums for individuals and families with incomes up to 250% FPL.
Gold plans: Feature higher monthly premiums but lower deductibles and out-of-pocket costs. They cover about 80% of costs, making them suitable for those who expect more frequent medical care.
Platinum plans: Have the highest premiums but the lowest out-of-pocket costs, covering about 90% of costs. These are ideal for individuals who anticipate significant medical needs.

Eligibility for financial assistance, including premium tax credits and cost-sharing reductions, is based on your household income relative to the Federal Poverty Level (FPL). In Illinois, individuals and families earning between 100% and 400% FPL may qualify for premium tax credits. Enhanced subsidies under the American Rescue Plan (ARP) and Inflation Reduction Act (IRA) have made coverage more affordable by expanding eligibility for premium tax credits beyond 400% FPL, ensuring that most households pay no more than 8.5% of their income for a benchmark Silver plan.

Illinois Medicaid and CHIP Eligibility in Buffalo Grove

Illinois is an expanded Medicaid state, meaning adults with household incomes up to 138% of the Federal Poverty Level (FPL) are eligible for Illinois Medicaid. This includes many residents of Buffalo Grove who may find marketplace plans unaffordable without significant subsidies. Applying for Illinois Medicaid can be done through ABE (abe.illinois.gov) or by calling the DHS helpline. For specific populations, the income thresholds are even higher:

Pregnant Women: Illinois Medicaid covers pregnant women with income up to 213% FPL, one of the highest thresholds among production states. This coverage includes comprehensive prenatal care, labor, delivery, and 12 months of postpartum care, extended under the ARP.
Children (Illinois All Kids): Illinois's Children's Health Insurance Program (CHIP), known as Illinois All Kids, covers children up to 313% FPL with low-cost coverage, making it one of the most expansive child coverage programs in the country.

If your income falls below these thresholds, Illinois Medicaid or Illinois All Kids can provide robust, low-cost health coverage.

Health Insurance Carriers in Buffalo Grove

In 2026, 5 carriers offer marketplace plans in Illinois Rating Area 3, which covers Lake and McHenry counties, including Buffalo Grove. These carriers provide a range of plan types including HMO, EPO, and PPO options. The confirmed carriers for this rating area are:

Ambetter
Blue Cross and Blue Shield of Illinois
Molina Healthcare
Oscar Health
United Healthcare

When choosing a plan, consider not only the premium and deductible but also the network of doctors and hospitals. Lake County is served by 5 acute care hospitals, including Vista Medical Center East in Waukegan, Midwestern Region Med Center, Inc in Zion, Northwestern Lake Forest Hospital in Lake Forest, Advocate Condell Medical Center in Libertyville, and Advocate Good Shepherd Hospital in Barrington. Many of these facilities and affiliated physicians are part of the networks offered by the carriers listed above.

Making Your Health Insurance Decision in Buffalo Grove

Choosing the right health insurance plan, especially an Oscar Health plan, in Buffalo Grove requires considering your healthcare needs, budget, and eligibility for financial assistance. Here's a quick guide:

If your income is below 138% FPL: You likely qualify for Illinois Medicaid. Apply directly through ABE (abe.illinois.gov) or the DHS helpline.
If your income is between 100% and 400% FPL (or higher with enhanced subsidies): Explore plans on GetCoveredIllinois. You'll likely qualify for premium tax credits to lower your monthly payments. Consider a Silver plan for potential cost-sharing reductions if your income is below 250% FPL.
If you require specific doctors or hospitals: Check the carrier's network for Oscar Health or other providers to ensure your preferred healthcare providers are included. Lake County's hospital systems, such as Advocate Condell Medical Center and Northwestern Lake Forest Hospital, are key considerations.
If you anticipate high medical costs: A Gold or Platinum plan might offer better value with lower out-of-pocket costs, despite higher premiums.

A licensed health insurance producer can provide personalized, free assistance to help you compare Oscar Health plans and other options, ensure you receive all eligible subsidies, and guide you through the enrollment process on GetCoveredIllinois.

Frequently Asked Questions

Is Oscar Health insurance available in Buffalo Grove, Illinois?

Yes, Oscar Health is one of 5 carriers offering marketplace health insurance plans in Rating Area 3, which includes Buffalo Grove and other parts of Lake and McHenry counties, for the 2026 plan year.

Can I get a PPO plan from Oscar Health in Illinois?

While PPO plans are available on the GetCoveredIllinois marketplace, Oscar Health primarily offers HMO and EPO plans. You can compare specific plan types offered by Oscar Health and other carriers for your ZIP code during open enrollment on GetCoveredIllinois.

What income qualifies for Illinois Medicaid in Buffalo Grove?

In Illinois, adults with household income up to 138% of the Federal Poverty Level (FPL) may qualify for Illinois Medicaid. For pregnant women, the threshold is higher, up to 213% FPL. Children can qualify for Illinois All Kids (CHIP equivalent) up to 313% FPL.

When can I enroll in an Oscar Health plan in Buffalo Grove?

You can enroll in an Oscar Health plan during the annual Open Enrollment Period, typically from November 1 to January 15. Outside of this window, you may qualify for a Special Enrollment Period if you experience a qualifying life event like marriage, birth of a child, or loss of other coverage.