What is the difference between an HMO and an OAP?

Asked by: Ms. Vilma Ritchie I  |  Last update: November 22, 2025
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An open access HMO differs from a traditional HMO in that it typically allows employees to see in-network specialists without a referral, but still will not cover out-of-network providers other than emergency care. The gist: Open access HMOs are less expensive but more limiting than a PPO.

What is an OAP health plan?

What is an Open Access Plus (OAP) plan? Open Access Plus (OAP) plans make it easy to get quality, in-network care with access to a large, national network of providers. Plus, you have the option to choose a primary care provider to coordinate your care and you don't need specialist referrals.

Which is better, an HMO or a PPO?

Generally speaking, an HMO might make sense if lower costs are most important and if you don't mind using a PCP to manage your care. A PPO may be better if you already have a doctor or medical team that you want to keep but doesn't belong to your plan network.

What is the difference between open access and HMO?

No primary care physician (PCP) requirement: Unlike traditional HMOs, which require members to choose a PCP who acts as a gatekeeper to specialty care, Open-Access HMOs allow members to seek care from any provider within the network without a referral.

What are three disadvantages of HMO?

Disadvantages
  • If you need specialized care, you will need a referral from your primary care physician to an in-network provider.
  • Must see in-network providers for care-less flexibility than a PPO plan.

PPO vs HMO: What's the Difference?

40 related questions found

What does OAP stand for in insurance?

Open access plans combine similar benefits of an HMO with the same type of coverage benefits as a traditional health plan. Members who elect an OAP will have three tiers of providers from which to choose to obtain services. The benefit level is determined by the tier in which the healthcare provider is contracted.

What is the most popular AARP Medicare supplement plan?

For most people, the best Medicare Supplement option is Medigap Plan G from AARP/UnitedHealthcare, which costs $157, on average. This plan covers nearly all of the costs that you're responsible for paying with Original Medicare.

Why are people leaving Medicare Advantage plans?

Key takeaways: People leave Medicare Advantage plans because out-of-pocket costs vary between plans, network restrictions can cause frustration, prior authorization requests can delay care, and it can be difficult to use the additional benefits they provide.

Why do doctors not accept HMO?

HMO plans might involve more bureaucracy and can limit doctors' ability to practice medicine as they see fit due to stricter guidelines on treatment protocols. So just as with patients, providers who prefer a greater degree of flexibility tend to prefer PPO plans.

Why would a person choose PPO over an HMO?

A PPO plan provides more flexibility in choosing your health care providers, but it may cost more than an HMO. Key areas to remember: Your maximum copay or coinsurance is less when you stay in network for services.

What is a medicare HMO?

An HMO is a type of. Medicare Advantage Plan (Part C) Medicare Advantage Plan (Part C) A type of Medicare-approved health plan from a private company that you can choose to cover most of your Part A and Part B benefits instead of Original Medicare. It usually also includes drug coverage (Part D).

What is an OAP program?

The Ocean Acidification Program (OAP) pursues science to improve our understanding of where, how, and how fast the chemistry of the ocean is changing. Furthermore, knowing what impacts these changes have on marine life, people, and the local, regional, and national economies.

What is the best health plan for seniors?

Medicare is the best health insurance option for seniors and retirees. Medicare is the cheapest health insurance with the best benefits for people age 65 and older or who have a qualifying disability. You can choose between two different options: Original Medicare and Medicare Advantage.

What is an OAP?

countable noun. An OAP is a person who is old enough to receive an old age pension from the government. OAP is an abbreviation for 'old age pensioner'. [British]

What is the best Medicare plan that covers everything for seniors?

Original Medicare with Medigap likely offers the most comprehensive coverage, but it may also be the most costly. A person can consider their income and how much they are able to spend before choosing a Medicare plan. Original Medicare with Medigap also offers a lot of flexibility when choosing a doctor or specialist.

Why does AARP recommend UnitedHealthcare?

AARP does not necessarily argue that UnitedHealthcare is the right choice for every Medicare beneficiary, but it does proclaim it as a trusted healthcare partner and resource. Of course, there may be an additional reason other than UHCs good name. UnitedHealthcare pays AARP for the use of its name.

Does everyone pay $170 for Medicare?

If you don't get premium-free Part A, you pay up to $518 each month. If you don't buy Part A when you're first eligible for Medicare (usually when you turn 65), you might pay a penalty. Most people pay the standard Part B monthly premium amount ($185 in 2025).

Why do doctors not like Medicare Advantage plans?

Across the country, provider grumbling about claim denials and onerous preapproval requirements by Advantage plans is crescendoing. Some hospitals and physician practices are so fed up they're refusing to accept the plans — even big ones like those offered by UnitedHealthcare and Humana.

Can I drop my Medicare Advantage plan and go back to original Medicare?

Medicare Advantage Open Enrollment Period: Between January 1 and March 31 of each year, if you already have a Medicare Advantage Plan (with or without drug coverage) you can: Switch to another Medicare Advantage Plan (with or without drug coverage). Drop your Medicare Advantage Plan and return to Original Medicare.

Is an OAP a PPO or HMO?

Yes, Cigna Open Access Plus (OAP) plans are PPO plans. Is open access a PPO or HMO? PPOs are open access by definition. HMOs can be open access — but open access HMOs are not as flexible as PPOs.

What type of plan is OAP?

Cigna Open Access Plus (OAP) Medical Plans. Providing employees with access to a large national network of quality providers and discounts.