Medicare prior authorization is becoming a major topic of discussion as the Centers for Medicare & Medicaid Services launches a new pilot program designed to reduce unnecessary healthcare spending and improve oversight of certain medical services.
For years, prior authorization has been common in Medicare Advantage plans and commercial health insurance. However, Original Medicare has generally required fewer pre-approval processes. That is beginning to change.
A new Medicare initiative known as the Wasteful and Inappropriate Service Reduction Model, or WISeR Model, will test whether prior authorization can help reduce fraud, waste, and unnecessary procedures while maintaining access to medically necessary care.
If you receive healthcare through Original Medicare, or may in the future, it is important to understand what these changes could mean for your coverage and treatment plans.
For more information about Medicare coverage and benefits, visit Medicare.gov.
1. Original Medicare Is Testing Prior Authorization
The biggest change is that Original Medicare is now testing a prior authorization model for certain services and procedures.
Historically, Original Medicare generally paid for covered services after treatment was provided, assuming all Medicare requirements were met. Under the WISeR model, some services will require approval before Medicare agrees to pay.
The official CMS WISeR Model page explains that the model will test prior authorization or pre-payment review for selected services in Original Medicare and will run in six states from January 1, 2026, through December 31, 2031. CMS WISeR Model
For many Medicare beneficiaries, this represents a significant shift in how certain healthcare services are reviewed and approved.
2. The Pilot Program Will Run for Six Years
The WISeR model is scheduled to run for six performance years, from January 1, 2026, through December 31, 2031.
This six-year testing period gives CMS an opportunity to evaluate whether prior authorization improves program integrity while maintaining access to medically necessary services.
Throughout the pilot, CMS is expected to monitor outcomes such as:
- Approval rates
- Denial rates
- Provider compliance
- Healthcare spending
- Patient access to care
The results could influence future Medicare policies nationwide.
3. Only Six States Are Included
At launch, the Medicare prior authorization pilot only applies to beneficiaries receiving care in six states.
| State | Included in WISeR Pilot | What Beneficiaries Should Ask |
|---|---|---|
| Arizona | Yes | Has my doctor submitted prior authorization? |
| New Jersey | Yes | Is my procedure included in the WISeR model? |
| Ohio | Yes | Has Medicare approved the service before treatment? |
| Oklahoma | Yes | What documentation does my doctor need to provide? |
| Texas | Yes | Could my procedure be delayed while approval is pending? |
| Washington | Yes | Will I receive an approval or tracking number? |
If you live outside these states, the pilot does not currently apply to your Original Medicare coverage.
However, healthcare policy experts will be watching closely because successful pilot programs are sometimes expanded to additional states in the future.
4. Certain Procedures Will Be Subject to Review
The pilot does not apply to every Medicare-covered service.
Instead, CMS has identified a targeted group of procedures and medical devices that have historically shown higher rates of questionable utilization, billing errors, or unnecessary spending.
Examples of services that may require prior authorization include:
- Certain spinal injections
- Nerve stimulation procedures
- Peripheral nerve stimulators
- Bioengineered skin substitutes
- Knee arthroscopy for osteoarthritis
- Certain implantable nerve stimulation devices
CMS selected these services because they have been identified as areas where additional review may help ensure appropriate use and reduce wasteful spending.
Before scheduling one of these procedures, beneficiaries should verify whether prior authorization is required.
5. Artificial Intelligence Will Assist Reviews
One of the most discussed aspects of the WISeR model is the use of artificial intelligence and algorithm-assisted reviews.
CMS contractors may use technology tools to help identify claims that warrant additional review. CMS has stated that the model is designed to test technology-assisted review while maintaining Medicare coverage and payment rules. Federal Register WISeR Model Notice
The goal is to improve efficiency by helping reviewers process requests more quickly while maintaining appropriate oversight.
Potential benefits may include:
- Faster reviews
- More consistent decisions
- Reduced administrative burden
- Improved fraud detection
At the same time, some consumer advocates and healthcare organizations have expressed concerns about transparency and the potential impact of automated decision-making.
As the pilot progresses, CMS will continue evaluating how these technologies affect beneficiaries and providers.
6. Approval May Be Required Before Treatment
One of the most important takeaways for beneficiaries is that some services may require approval before treatment occurs.
If prior authorization is required and approval is not obtained, Medicare may deny payment for the service.
That could result in delays, appeals, or unexpected costs.
Questions to Ask Your Doctor
Before scheduling a procedure, consider asking:
- Does this procedure require Medicare prior authorization?
- Has prior authorization already been submitted?
- Have you received approval from Medicare?
- What documentation is required?
- Could my treatment be delayed while waiting for approval?
Having these conversations early can help avoid surprises and ensure the process moves as smoothly as possible.
7. Planning Ahead Will Be More Important Than Ever
As healthcare regulations become more complex, proactive planning becomes increasingly important.
Beneficiaries who understand their coverage, ask questions, and communicate with their healthcare providers will be better positioned to avoid delays and coverage issues.
Even if your procedure is medically necessary, prior authorization requirements may create additional administrative steps.
Understanding those requirements before treatment can save time, reduce stress, and help you make informed healthcare decisions.
What Medicare Beneficiaries Should Do Next
If you live in Arizona, New Jersey, Ohio, Oklahoma, Texas, or Washington, it is a good idea to become familiar with the WISeR model and discuss any upcoming procedures with your healthcare provider.
Before Scheduling a Procedure
- Confirm whether Medicare prior authorization is required
- Ask if your provider has submitted the request
- Verify that all supporting documentation is included
- Keep copies of approval notices and reference numbers
- Understand potential timelines before treatment is scheduled
Taking these steps can help prevent delays and ensure your care proceeds as planned.
How an Insurance Advisor Can Help
Healthcare coverage rules continue to evolve, and many beneficiaries find it challenging to keep up with changing Medicare requirements.
A knowledgeable Medicare advisor can help you:
- Understand Medicare coverage changes
- Review your healthcare options
- Compare Original Medicare and Medicare Advantage plans
- Navigate prescription drug coverage
- Stay informed about new Medicare policies
While advisors cannot approve or deny prior authorization requests, they can help you understand how coverage rules may affect your healthcare decisions.
Frequently Asked Questions About Medicare Prior Authorization
What is Medicare prior authorization?
Medicare prior authorization is a process that requires approval before Medicare will pay for certain healthcare services, procedures, or medical devices.
Does Original Medicare require prior authorization?
Traditionally, Original Medicare has had limited prior authorization requirements. However, the WISeR pilot expands prior authorization for selected services in six states.
Which states are included in the Medicare prior authorization pilot?
The pilot currently applies to Arizona, New Jersey, Ohio, Oklahoma, Texas, and Washington.
Will Medicare use artificial intelligence to review requests?
CMS contractors may use AI-assisted tools to help review requests. The model is designed to test technology-assisted review while maintaining existing Medicare coverage rules.
What services are affected by the pilot?
Certain spinal injections, nerve stimulation procedures, bioengineered skin substitutes, knee arthroscopy for osteoarthritis, and selected implantable devices may require prior authorization.
Can Medicare deny coverage if prior authorization is not obtained?
If a required prior authorization is not submitted or approved, Medicare may deny payment for the service.
Does Medicare Advantage already use prior authorization?
Yes. Prior authorization has been commonly used by many Medicare Advantage plans for years. The WISeR model focuses specifically on Original Medicare.
Get Help Understanding Your Medicare Options
Medicare rules and coverage requirements continue to evolve. Whether you are trying to understand Medicare prior authorization, compare coverage options, or prepare for an upcoming enrollment period, having the right guidance can make all the difference.
At ICT Insurance Group, we help Medicare beneficiaries understand their options and make informed decisions about their healthcare coverage.
If you have questions about Medicare, Medicare Advantage, Part D prescription drug coverage, or other Medicare-related topics, our team is here to help.
Ready to review your Medicare coverage?
Call ICT Insurance Group at (316) 440-6111 or Contact Us to speak with a licensed Medicare advisor and explore your options.
