How to Get a Prior Authorization for Medication

Getting a prior authorization for medication starts with your prescribing doctor, not with you personally calling the insurance company. Your doctor or their staff submits a request to your insurer, providing clinical documentation that explains why you need a specific drug. The insurer reviews it against their coverage criteria, and either approves, denies, or asks for more information. The whole process can take anywhere from a few hours to several weeks, and understanding how it works gives you a real advantage when things stall or go sideways.

Why Prior Authorization Exists in the First Place

Insurance companies use prior authorization as a gatekeeping tool. The stated purpose is to make sure a prescribed medication is medically necessary, cost-effective, and appropriate before they agree to pay for it. In practice, it is one of the most common ways insurers manage spending on expensive drugs. Nearly all Medicare Advantage plans require prior authorization for at least some medical services, and that pattern holds across commercial insurance too.¹ For specialty medications like biologics used in rheumatoid arthritis, the rate is even more striking: roughly 95% of Medicare Part D plans required prior authorization for at least one biologic disease-modifying drug.²

The medications most likely to need prior authorization tend to be newer, brand-name, or high-cost drugs, as well as those where the insurer wants to ensure you tried cheaper alternatives first. Insurers, pharmacy benefit managers, and employers see it as a tool to control drug costs, and pharmaceutical companies factor the administrative overhead of navigating these requirements into their pricing.³ The result is a system that adds friction for patients and providers alike, but understanding the mechanics helps you push through it.

The Step-by-Step Process

Here is what actually happens when a medication you need requires prior authorization:

Prescription trigger: Your doctor writes a prescription. When the pharmacy tries to fill it, the system flags that prior authorization is needed. Sometimes the pharmacy catches it first and contacts your doctor. Other times, your doctor already knows and starts the process before you ever get to the pharmacy counter.
Request submission: Your doctor’s office gathers clinical documentation and submits a prior authorization request to your insurer. This usually includes your diagnosis, relevant lab results, imaging, a record of what treatments you have already tried, and a clinical justification for why this specific medication is necessary.
Insurer review: A reviewer at the insurance company evaluates the request against a set of coverage criteria. These criteria vary by insurer and plan but generally focus on whether the drug is FDA-approved for your condition, whether you have tried and failed on cheaper alternatives (known as step therapy), and whether your clinical situation meets their threshold for medical necessity.
Decision: The insurer approves, denies, or requests additional information. Approval means the pharmacy can fill the prescription. Denial means you or your doctor need to appeal or explore alternatives. A request for more information means the clock resets while your doctor gathers and resubmits documentation.

The timeline varies enormously. For urgent or time-sensitive medications, insurers are often required to respond within 24 to 72 hours. For non-urgent requests, it can take days to weeks. One study of electronic prior authorization systems found that the median time from request to decision was about 19 hours under the old fax-and-phone system.⁴ That is the median; plenty of requests take much longer, especially when documentation is incomplete or the insurer requests a peer-to-peer review.

What You Can Do to Speed Things Up

The single most important thing you can do is stay in close communication with your doctor’s office. You are not usually the one submitting the prior authorization, but you are the person most motivated to see it through. Here are the practical levers you have:

First, ask your doctor’s office to check your insurer’s formulary before writing the prescription. If your insurer covers a similar medication without prior authorization, switching to that drug might save weeks. For example, many plans cover common generic medications at low copayments with no prior authorization, while the brand-name or specialty version of a similar drug requires a full review.²

Second, make sure your medical records are complete and up to date before the request goes in. Missing lab work, an outdated diagnosis code, or incomplete documentation of previous treatments are among the most common reasons prior authorizations get delayed or denied. If your doctor needs recent bloodwork or imaging to support the request, get it done quickly rather than waiting for the insurer to ask for it.

Third, call your insurance company yourself to check the status. Many insurers have a member services line where you can ask whether a prior authorization request has been received, what stage it is at, and whether any additional documentation is needed. Your doctor’s office handles dozens of these requests and may not follow up as urgently as you would like.

Fourth, if your condition is urgent, make sure your doctor’s office marks the request as such. Most insurers have an expedited review pathway for situations where a standard timeline could cause serious harm. Your doctor needs to explicitly request this and document the medical urgency.

When a Request Gets Denied

Denials are common, but they are not the end of the road. The denial letter from your insurer should explain why the request was turned down and outline your appeal rights. Common reasons include insufficient documentation, failure to complete step therapy (you have not tried the cheaper drug the insurer wants you to try first), the drug not being on the plan’s formulary, or the reviewer determining that the medical necessity criteria were not met.

The first thing to understand about denials is that many are overturned on appeal. In one study of orthopedic imaging requests that were initially denied, about 95% were approved after a peer-to-peer review, where the prescribing doctor spoke directly with the insurance company’s reviewing physician.⁵ That study was about imaging rather than medication, but it illustrates an important principle: initial denials often reflect incomplete information or a box-checking process rather than a genuine clinical disagreement. When the prescribing doctor talks to the reviewer, the approval rate jumps.

Your doctor’s office typically handles the first level of appeal. If they receive a denial, the standard approach is to submit a letter of medical necessity with additional clinical detail, or to request a peer-to-peer phone call where your doctor explains your case directly to the insurer’s physician reviewer. Speed matters here. One study found that implementing a standardized appeal letter template helped clinics submit nearly 90% of appeals within three days of a denial, compared to only about 29% before the template was in place, and the overall approval rate for appealed requests was around 93%.⁶

If the first appeal fails, you usually have the right to an external review by an independent third party. The specifics vary by state and plan type, but federal regulations require most health plans to offer external review. This is worth pursuing, especially for high-cost specialty drugs where the stakes are significant.

The Cost and Burden on Your Doctor’s Office

It helps to understand what is happening on the other side of the counter. Prior authorization is a significant administrative burden for medical practices. One urology practice calculated that each prior authorization cost the practice roughly $15 on average in staff time, and the total burden added up to over $2,200 in a study period.⁷ For surgical specialties, the administrative load is even heavier. A study of total joint replacement patients found that prior authorization led to increased waiting times for surgery and a high administrative burden for both surgeons and their staff.⁸

Why does this matter to you? Because the staff handling your prior authorization are likely juggling dozens of others. Being polite but persistent when you call to check on the status is the right balance. Practices that have dedicated prior authorization coordinators tend to move things faster, so if your doctor’s office has one, ask to speak with them directly rather than going through the front desk.

How Electronic Prior Authorization Is Changing the Timeline

The traditional prior authorization process relied on phone calls, faxes, and mailed paperwork. That is slowly changing. Electronic prior authorization systems, which plug into the prescriber’s electronic health record and communicate directly with the insurer’s system, can dramatically speed things up. One health system that implemented electronic prior authorization saw a 62% decrease in turnaround time and a 25% increase in the number of authorizations a single coordinator could process per month.⁹ Another evaluation found that the median decision time dropped from nearly 19 hours to under 6 hours after electronic systems were adopted.⁴

Not all practices or insurers have adopted electronic prior authorization yet, and the systems are not universal. If your doctor’s office still relies on faxes, that partly explains why things take so long. Some patients find that switching to a provider within a large health system, where electronic tools are more common, makes the process smoother for ongoing medications that need repeated authorizations.

On the insurer side, artificial intelligence is increasingly being used to process prior authorization requests.¹⁰ That sounds like it should help, but the picture is mixed. Reports of AI-assisted blanket denials have grown, particularly in Medicare Advantage plans, prompting lawsuits and congressional scrutiny.¹¹ If you receive a denial that seems generic or disconnected from your actual medical situation, that could be an AI-generated decision, and it makes the appeal process even more important.

Why Delays Matter More Than They Seem

Prior authorization delays are not just an annoyance. Research consistently shows that delays in prescription initiation occur when prior authorization is required, and for some conditions those delays translate directly into worse health outcomes.¹² A systematic review found that authorization requirements were associated with disease worsening, preventable hospitalizations, longer hospital stays, and lower rates of disease-free survival across multiple areas of medicine.¹³

This is especially relevant if you have a serious or progressive condition. For cancer medications, autoimmune disease biologics, or drugs used to prevent organ transplant rejection, a week’s delay is not a minor inconvenience. If you are in a situation where a delay could cause real harm, communicate that clearly to both your doctor’s office and your insurance company. Document everything in writing. If you are denied coverage for a time-sensitive medication, ask your doctor about manufacturer patient assistance programs or copay cards that can bridge the gap while the authorization or appeal is pending.

Gold Carding and Exemptions

Some states have started pushing back on prior authorization through legislation. One of the more notable efforts is “gold carding,” which exempts doctors with consistently high approval rates from needing prior authorization at all. Texas passed a gold card bill in 2022 that exempts physicians with a 90% or higher approval rate from prior authorization for a minimum of six months on certain services.¹⁴ Several other states have followed with similar proposals.

If you live in a state with gold carding laws, your doctor may already be exempt from prior authorization for certain medications. Ask your doctor’s office whether they qualify. This is one of those situations where the policy exists but patients rarely know about it unless someone tells them.

At the federal level, the Centers for Medicare and Medicaid Services has introduced rules requiring Medicare Advantage plans to improve their prior authorization processes, including faster decision timelines and better transparency. These rules are being phased in, and the full impact remains to be seen, but the trend is toward more accountability for insurers.

Disparities in Who Gets Caught Up in Prior Authorization

Prior authorization does not affect everyone equally. Research in gynecologic oncology found that patients with Medicare Advantage plans faced a 76% higher risk of encountering prior authorization compared to those with other types of coverage. Patients of Asian descent in the same study had a 60% increased risk of experiencing prior authorization requirements.¹⁵ Racial and ethnic disparities in prior authorization requirements have also been identified among cancer patients more broadly.¹⁶

These disparities likely reflect a combination of factors, including which insurance plans are more common in different communities, how prior authorization criteria interact with treatment patterns, and possible systemic biases in how requests are reviewed. If you feel your prior authorization experience is not matching what your doctor recommended, or if you suspect your request is being handled differently than it should be, documenting everything and escalating to your state insurance commissioner’s office is a legitimate option.

A Practical Checklist

If you are staring down a prior authorization right now and want to make it go as smoothly as possible, here is a condensed version of the practical steps:

Check the formulary first: Ask your doctor or pharmacist whether the medication is on your plan’s formulary and what tier it falls under. A formulary drug on a lower tier may not need prior authorization at all.
Gather records in advance: Make sure your chart includes recent labs, a clear diagnosis, and documentation of any previous treatments you have tried. Incomplete records are the most fixable cause of delays.
Ask about urgency: If your condition is time-sensitive, have your doctor request an expedited review. Most plans are required to offer one.
Follow up within 48 hours: Call your insurer’s member services to confirm they received the request. Do not assume silence means progress.
Request a peer-to-peer if denied: If the initial request is turned down, a direct conversation between your doctor and the insurer’s reviewer overturns a large share of denials.
Appeal in writing quickly: If a peer-to-peer does not resolve it, submit a formal written appeal with detailed clinical justification. Speed counts.
Explore bridge options: While waiting, ask about manufacturer copay assistance, patient assistance programs, or a short-term supply from your pharmacy.
Escalate if needed: If internal appeals fail, request an external review. You can also file a complaint with your state insurance department.

Prior authorization is one of those processes that rewards persistence and documentation. The system is not designed to be easy for patients to navigate, but the approval rates on appeal are high enough that giving up after an initial denial means leaving medication on the table that you likely would have gotten if you pushed further.