top of page

What are Health Insurance Networks and how do they work with the Affordable Care Act and Medicare

Health insurance is a vital component of healthcare access and affordability in the United States. Two major players in the realm of health insurance are the Affordable Care Act (ACA) and Medicare. Both programs have their own unique networks, rules, and regulations that impact the healthcare choices available to individuals and families. Let’s explore health insurance networks in the context of the ACA and Medicare, helping you understand how they function and what you need to know to make informed decisions about your healthcare coverage.


What is a Health Insurance Network?


Health insurance networks refer to the groups of doctors, hospitals, and other healthcare providers that have agreements with insurance companies to provide care at discounted rates. These networks help insurers manage costs and ensure that their policyholders have access to affordable healthcare services. It's essential to understand the different types of networks and how they work within the ACA and Medicare.


A hand holding a paper umbrella over a family of clay figures with the words "ACA Networks"

Health Insurance Networks with the Affordable Care Act (ACA)


The ACA, also known as Obamacare, was signed into law in 2010 with the goal of expanding access to healthcare and improving the quality of care. It introduced health insurance marketplaces where individuals and families can purchase insurance plans, often with subsidies to make coverage more affordable. Here are the key network types within ACA plans:


 Health Maintenance Organization (HMO): HMO plans require policyholders to choose a primary care physician (PCP) and obtain referrals from them to see specialists. These plans usually have a strict network of providers and require you to use in-network doctors and hospitals for non-emergency care. Out-of-network care is typically not covered, except in emergencies.


 Preferred Provider Organization (PPO): PPO plans offer more flexibility in choosing healthcare providers. You can see specialists without a referral, and they cover both in-network and out-of-network care, though you'll pay less if you stay in-network. PPOs tend to have higher premiums and out-of-pocket costs.


Exclusive Provider Organization (EPO): EPO plans are a middle ground between HMOs and PPOs. They don't require referrals, but they often have a network of providers like HMOs. Out-of-network care is typically not covered except in emergencies.


Point of Service (POS): POS plans combine features of HMOs and PPOs. You have a primary care physician and need referrals for specialists, but you can still access some out-of-network care at a higher cost.


Catastrophic Plans: These plans are available to young and healthy individuals under the age of 30 or those with hardship exemptions. They typically have low premiums but high deductibles. Catastrophic plans have limited network options.


An elderly couple standing in the rain with an umbrella with the words "Medicare Networks" under the picture

Health Insurance Networks with Medicare


Medicare is a federal health insurance program primarily for individuals aged 65 and older, as well as certain younger individuals with disabilities. It consists of different parts that cover various healthcare services, and each part has its network considerations:


Original Medicare (Part A and Part B): Original Medicare is a fee-for-service program that allows beneficiaries to see any healthcare provider that accepts Medicare. It has a broad network, and you can receive care from any Medicare-approved doctor or hospital. However, you may still have out-of-pocket costs, and some doctors may not accept Medicare assignment, which can result in higher expenses.


Medicare Advantage (Part C): Medicare Advantage plans are offered by private insurance companies approved by Medicare. These plans often have their networks of healthcare providers. Some are HMOs, while others are PPOs. Medicare Advantage plans may offer additional benefits like prescription drug coverage (Part D), dental, and vision.


Medicare Part D (Prescription Drug Plans): Part D plans have their network of pharmacies and drug formularies. It's essential to choose a plan that covers the medications you need and is accepted by your preferred pharmacy.



Navigating health insurance networks can be complex, but understanding your options with the Affordable Care Act and Medicare is crucial for accessing quality healthcare while managing costs. Take the time to compare plans, consider your specific healthcare needs, and choose a network that aligns with your preferences and budget. Remember that open enrollment periods for both the ACA and Medicare offer opportunities to review and make changes to your coverage, so make informed decisions to ensure you receive the care you need.

bottom of page