Medicare Advantage Prior Authorization in 2026: What Maryland Beneficiaries Should Know
Updated: Oct 12
Prior authorization is one of the most important Medicare Advantage rules to understand before you choose a plan. It means the plan may require approval before it will cover certain non-emergency medical services, procedures, equipment, or treatments. Not every service needs prior authorization, and the requirements vary by plan.
For Maryland beneficiaries, the practical issue is simple: a plan can look attractive on premium and extra benefits but still be a poor fit if its network or approval rules make it difficult to use the doctors and services you expect to need. In 2026, new federal requirements are also making parts of the prior-authorization process faster and more transparent.
What Is Prior Authorization in Medicare Advantage?
Medicare Advantage plans are offered by private insurers approved by Medicare. They must cover the Medicare Part A and Part B services that Original Medicare covers, but plans can use utilization-management tools, including prior authorization, when permitted under Medicare rules.
When prior authorization applies, your provider generally asks the plan to approve a covered item or service before it is provided. The plan reviews the request against Medicare coverage requirements and any applicable plan criteria. Approval is not a guarantee that every dollar will be paid; normal eligibility, coverage, network, and cost-sharing rules still matter.
Prior authorization is different from a referral. A referral is usually permission or direction to see another provider, such as a specialist. Prior authorization is the plan's review of whether a particular service or item meets its coverage requirements. Depending on the plan, you may encounter one, both, or neither.
What Changed for Medicare Advantage Prior Authorization in 2026?
CMS finalized operational requirements that generally took effect January 1, 2026 for impacted payers, including Medicare Advantage organizations. For non-drug items and services subject to these rules, plans must send prior-authorization decisions within 72 hours for expedited requests and within seven calendar days for standard requests.
Beginning in 2026, impacted payers must also provide a specific reason when they deny a prior-authorization request for a non-drug item or service. That matters because a clear denial reason can help a provider understand whether additional documentation, a corrected request, or an appeal may be appropriate.
CMS is also increasing transparency around how Medicare Advantage organizations use internal coverage criteria. Starting with the 2026 coverage year, Medicare Advantage organizations must submit information to CMS about internal coverage criteria used to process prior authorizations for Medicare Part C services.
These changes do not eliminate prior authorization. They are intended to make the process more timely and understandable. Some additional electronic data-exchange requirements begin in 2027, so it is important not to confuse those future technology requirements with the operational protections already applying in 2026.
Does Every Medicare Advantage Plan Require Prior Authorization?
No. Prior-authorization requirements depend on the plan and the service. Even plans offered by the same insurance company can have different rules, and those rules can change from one plan year to the next.
Plan type matters too. For example, Medicare states that Private Fee-for-Service plans do not require prior approval for Medicare Part A and Part B items and services. Other Medicare Advantage plan structures may use prior authorization more extensively. The safest approach is to check the specific plan's Evidence of Coverage and other current plan documents rather than assuming that one company's rules apply to every plan it sells.
Prior Authorization vs. Provider Networks
Prior authorization gets a lot of attention, but provider networks can be just as important when comparing Medicare Advantage plans. An HMO may generally expect you to use network providers except in situations such as emergency or urgently needed care. A PPO may allow out-of-network care but often at a higher cost. Exact rules vary by plan.
That means a useful Medicare Advantage comparison should answer two separate questions: Is the provider you want to use in the plan's network, and does the service you expect to receive require prior authorization? A yes to the first question does not automatically answer the second.
This becomes especially important if you regularly see specialists, receive recurring treatments, use durable medical equipment, or have a procedure planned. Checking only your primary care doctor can leave a major gap in the comparison.
What Happens if Prior Authorization Is Denied?
A denial does not necessarily mean the process is over. The specific next step depends on the reason for the decision and the circumstances. Your provider may be able to submit additional documentation, correct an incomplete request, or pursue an appeal under the plan's Medicare rules.
The 2026 requirement for a specific denial reason is useful here. Instead of treating every denial as the same, look at what the plan says is missing or why the request did not meet its criteria. Keep copies of notices and ask the provider's office whether it is handling a resubmission or appeal.
For urgent medical situations, ask whether the request qualifies for expedited review. CMS's 2026 operational rules require decisions on qualifying expedited prior-authorization requests for non-drug items and services within 72 hours.
What if You Are Already Receiving Treatment?
Continuity of care matters when someone changes plans while receiving ongoing treatment. Medicare explains that when a Medicare Advantage plan has already approved a treatment, the approval must remain valid for as long as the treatment is medically necessary, and the plan cannot require additional approvals for that treatment. Medicare also provides a transition period for certain ongoing treatment when a beneficiary switches to a new plan.
The details can depend on the plan and situation, so someone undergoing active treatment should not switch coverage based only on premium or extra benefits. Confirm the provider network, treatment coverage, prior-authorization status, prescriptions, and transition rules before making a change.
How to Compare Medicare Advantage Plans in Maryland
If you live in Maryland, start with the care you actually use. Make a list of your primary doctor, specialists, preferred hospitals, regular prescriptions, and any recurring treatments or equipment. Then compare each plan against that list.
Do not stop at a plan's monthly premium. Check the medical deductible if one applies, specialist copays, hospital cost sharing, maximum out-of-pocket limit, prescription coverage, pharmacy network, provider network, and prior-authorization requirements. Extra benefits can be valuable, but they should not distract from how the plan handles the medical care you rely on.
It is also worth repeating this review each year. Medicare Advantage benefits, networks, formularies, cost sharing, and utilization-management rules can change. A plan that fit well this year may not be the strongest fit next year.
A Practical Example
Suppose a Montgomery County resident sees a cardiologist several times a year and expects an outpatient procedure next spring. Two Medicare Advantage plans have similar premiums. The first includes the cardiologist and preferred hospital but requires prior authorization for the planned procedure. The second has fewer approval requirements for that service, but the cardiologist is outside its network.
There is no useful way to compare those plans by premium alone. The beneficiary needs to weigh provider access, expected cost sharing, the authorization process, prescription coverage, and the consequences of using an out-of-network provider. That is the kind of comparison that turns plan details into an actual coverage decision.
Questions to Ask Before Enrolling
Before choosing a Medicare Advantage plan, ask whether your doctors and hospitals are currently in network, whether referrals are required for specialists, which services you commonly use require prior authorization, what your expected copays and coinsurance are, and what the plan's maximum out-of-pocket limit is for covered Part A and Part B services.
If you are already receiving treatment, ask specifically how the plan handles ongoing authorizations and transitions of care. If you take prescription drugs, review the formulary and pharmacy network separately because drug-coverage rules are not identical to the non-drug prior-authorization rules discussed here.
Frequently Asked Questions About Medicare Advantage Prior Authorization
Can a Medicare Advantage plan require prior authorization?
Yes. Medicare Advantage plans can use prior authorization for certain covered services when permitted under Medicare rules. The specific requirements vary by plan and service.
How long can a Medicare Advantage prior authorization take in 2026?
Under CMS requirements applying to impacted payers, decisions for non-drug items and services must generally be sent within 72 hours for expedited requests and seven calendar days for standard requests.
Does a prior-authorization denial have to explain why?
Beginning in 2026, impacted payers must provide a specific reason for denied prior-authorization requests for non-drug items and services. That information can help providers and beneficiaries understand possible next steps.
Is prior authorization the same as a specialist referral?
No. A referral concerns seeing another provider, while prior authorization concerns plan approval for a particular item or service. A plan may use either requirement depending on its rules.
Should prior authorization stop me from choosing Medicare Advantage?
Not necessarily. Prior authorization is one factor among many. Provider access, prescriptions, premiums, cost sharing, maximum out-of-pocket exposure, travel needs, and how often you expect to use care can be equally important.
Choosing Medicare Advantage Coverage in Maryland
A Medicare Advantage plan should be evaluated on how it works for your healthcare, not just how it looks in a benefits summary. Prior authorization is part of that picture, especially if you use specialists, recurring treatment, medical equipment, or expect a procedure during the coming year.
Forest Brook Financial can help Maryland Medicare beneficiaries compare Medicare Advantage options in plain English, including provider networks, prescriptions, cost sharing, and plan rules. The goal is to understand the trade-offs before enrolling rather than discover them when you need care.
Related guides and official references
Forest Brook Financial is not affiliated with or endorsed by Medicare or any government agency. Medicare Advantage plan premiums, provider networks, prior-authorization requirements, benefits, formularies, cost sharing, service areas, and availability vary by plan and year. Review Medicare.gov and the plan's current official documents before enrolling.
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