Struggling with prior authorization denials or delays?
A free billing audit from EZ MD Solutions identifies where your practice is losing revenue.
Prior authorization is one of the most administratively demanding tasks in a medical practice, and one of the most misunderstood when it comes to who actually owns the work.
The short answer: who is responsible for getting pre authorization is not one person alone. The ordering provider, the rendering provider, front desk staff, and the billing team all play defined roles. But in most small and mid-size practices, the operational burden falls squarely on administrative staff, and when the process breaks down, the consequences are claim denials, delayed payments, and frustrated patients.
Understanding how does prior authorization work at the practice level, not just in theory, is the first step to preventing the denials and delays that drain practice revenue. This guide is written specifically for practice owners, office managers, and billing teams. It covers the entire workflow: who is responsible for each step, how to do a prior authorization correctly, what commonly goes wrong, and how to manage it more efficiently.
Prior authorization, also called pre-authorization, pre-certification, precertification, or prior approval, is a requirement from health insurance payers that providers must obtain approval before delivering certain services, procedures, or medications.
In practical terms, the payer needs to verify that the requested service is medically necessary and covered under the patient’s plan before it agrees to pay for it. If the provider skips this step, the claim will almost certainly be denied, even if the service was clinically appropriate and the patient’s plan does cover it. This is one of the most preventable causes of claim denials in medical billing.
Prior authorization is not a minor inconvenience. According to the American Medical Association, the average physician practice completes more than 40 prior authorization requests per week per provider. Staff spend an average of 12 hours per week managing them. For a small practice with limited administrative resources, that is a significant operational and financial burden.
Prior authorization is not just a procedural checkbox. It is a direct factor in your practice’s revenue cycle management. When it is handled well, claims move through cleanly, and payments arrive on schedule. When it is handled poorly, the financial consequences compound quickly.
The direct revenue impact of poor prior authorization management includes:
The AMA reports that approximately one in four prior authorization requests is denied on the first submission. For a practice submitting 40 requests per week, roughly 10 may require follow-up work, appeals, peer-to-peer reviews, or resubmissions. Multiply that across a full year, and the revenue impact is significant.
Prior authorization responsibility is distributed across multiple roles inside and outside the practice. Understanding each party’s obligations is the foundation of a functional authorization workflow.
The ordering provider, typically the physician, nurse practitioner, or other licensed clinician directing the care, is responsible for initiating the prior authorization request. Most payers require the licensed provider to sign the order, referral, or requisition before accepting an authorization submission.
The ordering provider is also responsible for supplying the clinical documentation that supports medical necessity: diagnosis codes, procedure codes, clinical notes, relevant history, and any prior treatment attempts the payer requires as part of step therapy.
In many practices, the provider signs the order and hands the authorization process off to administrative staff. That handoff needs to be clean. Missing or ambiguous clinical documentation at this stage is one of the most common reasons authorizations are delayed or denied.
The rendering provider is the person or facility that actually performs the service, which is not always the same as the ordering provider. A primary care physician may order an MRI that a radiology center renders. An internist may refer a patient for a rheumatology infusion that an infusion center renders.
When ordering and rendering providers differ, both parties carry responsibility in the prior authorization workflow. The rendering provider’s team must:
Rendering providers who assume the ordering provider’s team has handled everything are taking a real risk. If the authorization is missing, expired, or issued to a different facility, the claim will be denied.
In the daily operations of most practices, prior authorization falls most heavily on the front desk and billing staff. This is where the actual administrative work happens, and where most breakdowns occur. Many practices find that a virtual medical assistant dedicated to prior authorization tracking resolves this workload problem entirely.
The front desk and billing team’s prior authorization responsibilities typically include:
This is where most prior authorization problems begin. If front desk staff do not catch a prior authorization requirement before the patient is scheduled, or submit an incomplete request, the clinical team may deliver a service that is not covered. By the time the denial arrives, the care has already been rendered, and recovery options are limited.
Patients carry some responsibility for understanding their own coverage, knowing whether their plan requires prior authorization for specific services and confirming approval is in place before receiving care.
In practice, most patients do not know the authorization requirements of their plan. This is not a failure on their part. Insurance coverage is genuinely complex. But it means practices cannot rely on patients to catch prior authorization gaps. The practice must own this verification at the time of scheduling.
Here is how a complete prior authorization workflow runs inside a US medical practice, from the moment a service is ordered to the moment the claim is submitted.
Even when staff understand the process, prior authorization management breaks down in practices that are short-staffed, high-volume, or lack a structured tracking system. Poor prior authorization management is not just an operational inconvenience, it is a direct contributor to denied claims, expired authorizations, and preventable revenue loss.
Authorization requirements are checked at the time of scheduling, before the appointment is confirmed
Many practices, especially small practices and private practices, find that front desk staff simply do not have the bandwidth to manage prior authorization consistently alongside scheduling, patient communication, insurance verification, and check-in duties. This is a resourcing problem, not a knowledge problem, and it is one of the most common reasons practices lose revenue they were entitled to collect.
Prior authorization requirements vary significantly by payer, plan type, and patient-specific coverage. However, certain service categories are consistently subject to prior authorization across most commercial insurers and Medicare Advantage plans:
Always verify prior authorization requirements directly with each payer for each patient’s specific plan. Requirements change frequently, and payer portals are the most reliable source of current information.
Prior authorization timelines vary by payer, urgency classification, and the completeness of submitted documentation.
Request Type | Typical Timeline | Key Factors |
Standard non-urgent | 1 to 5 business days | Documentation completeness, payer workload |
Urgent or expedited | 24 to 72 hours | Must meet payer definition of urgent need |
Complex or specialty | 2 to 4 weeks | Peer-to-peer review, additional records needed |
Multi-payer coverage investigation | Up to 6 weeks | New specialist relationships, complex coverage |
The most significant driver of timeline delays is incomplete documentation at submission. A request submitted with missing clinical notes, incorrect codes, or absent step therapy documentation will stall. In contrast, the payer requests more information, adding days or weeks to an already long process.
Prior authorization and referrals are distinct processes that are frequently confused, particularly in managed care settings where both may be required for the same patient encounter.
| Prior Authorization | Referral |
What it is | Payer approval for a specific service before it is rendered | Provider direction to another provider for care |
Issued by | The insurance payer | The ordering or primary care provider |
Required by | Most commercial plans, Medicare Advantage, Medicaid for specific services | HMO and managed care plans for specialist visits |
Purpose | Confirm coverage and medical necessity | Direct patient to appropriate provider or specialist |
If skipped | Claim denial, service not covered without payer approval | Claim denial or non-covered service, patient may owe full cost |
Some patient encounters require both a referral and a prior authorization. An HMO patient referred to a specialist for an infusion may need a referral from their PCP and a separate prior authorization from the payer for the specific infusion procedure the specialist will perform.
A prior authorization denial is not always final. Most payers have a formal appeals process, and data consistently show that a significant percentage of initial denials can be overturned when the right documentation and process are used. EZ MD Solutions’ denial management team handles this process for practices across the US.
According to a 2023 analysis of Medicare Advantage plans, more than 80% of initial prior authorization denials that were appealed were overturned. That represents recoverable revenue that many practices leave uncollected simply because they lack a defined appeal process.
Most prior authorization revenue losses are preventable. Here are the most common mistakes and what to do instead:
Common Mistake | What to Do Instead |
Checking prior auth requirements the day of the appointment | Verify requirements at time of scheduling, before the appointment is confirmed |
Submitting incomplete clinical documentation | Build a payer-specific documentation checklist and review before every submission |
No tracking system for pending authorizations | Maintain a live tracking log with submission dates, payer names, and expiration dates |
Letting approved authorizations expire | Build expiration dates into your scheduling workflow with advance alerts |
Assuming the other provider handled it | Rendering providers must verify authorization independently before scheduling |
Not appealing denials | Every denial should be reviewed within 48 hours and assessed for appeal or peer-to-peer review |
Missing the auth number on the claim | Billing must include the authorization number on every claim where one was issued |
Free Billing Audit: Find Out Where Your Practice Is Losing Revenue
For most practices, prior authorization management is a daily operational burden that consumes staff time, delays cash flow, and, when it breaks down, costs real revenue. The work is repetitive, payer-specific, and unforgiving when deadlines are missed.
EZ MD Solutions provides dedicated practice support that takes prior authorization off your team’s daily plate. Our full suite of medical billing and RCM services is built around one goal: ensuring your practice gets paid for every service it delivers.
Our virtual medical assistants verify patient benefits and confirm prior authorization requirements before the appointment is booked, not the morning of. This eliminates the most common cause of same-day cancellations and post-service denials.
Our team is trained across all major payers and EHR systems, including Epic, Athena, eClinicalWorks, AdvancedMD, Tebra, DrChrono, and more. We submit complete, documentation-supported prior authorization requests through each payer’s preferred channel to minimize delays from the start.
We maintain active tracking on every pending authorization, monitoring payer response windows, following up before requests expire, and escalating urgent requests when timelines are tight. Your team does not need to chase players. We do that.
When a prior authorization is denied, our denial management team reviews the denial reason within 48 hours, prepares the appropriate appeal documentation, and submits it through the correct channel within the payer’s appeal window. For clinical denials, we coordinate peer-to-peer review requests directly with the treating provider.
Every practice that partners with EZ MD Solutions receives a dedicated support team, not a rotating pool of agents shared across clients. Your team learns your workflows, your payer mix, and your provider preferences. Most practices see measurable improvements in authorization approval rates and claim submission cleanliness within 30 to 60 days.
EZ MD Solutions handles the entire prior authorization workflow, from benefits verification to denial appeals, so your team can focus on patient care.
Prior authorization is a shared responsibility across ordering providers, rendering providers, front desk staff, and billing teams. But in most practices, the operational burden lands on administrative staff who are already stretched thin.
The key takeaways from this guide:
If your practice is experiencing frequent prior authorization denials, delayed authorizations, or staff burnout from payer calls, that is an operational problem with a solvable answer. EZ MD Solutions works with 500+ practices across the US to manage the full prior authorization and denial management workflow so that providers can focus on care.
The following questions are among the most commonly searched on this topic. Each answer is structured to provide a direct, plain-language response first, followed by a brief supporting context.
The ordering provider is responsible for initiating the request and supplying clinical documentation that supports medical necessity. In practice, front desk and billing staff manage the submission, tracking, and follow-up. When ordering and rendering providers are different, such as when a physician refers a patient to a specialist or imaging center, both parties share responsibility for confirming authorization is in place before the service is performed.
A prior authorization is payer approval for a specific service, issued by the insurance company, confirming coverage and medical necessity before the service is rendered. A referral is a clinical direction from one provider to another, typically from a primary care provider to a specialist, and is issued by the provider, not the payer. In HMO and managed care plans, some encounters require both a referral from the PCP and a separate prior authorization from the payer for the specific procedure the specialist will perform.
Standard prior authorization requests are typically processed within 1 to 5 business days for non-urgent services. Urgent or expedited requests can be processed within 24 to 72 hours when a delay would seriously impact patient health. Complex cases involving specialty medications, peer-to-peer reviews, or requests for additional information can extend the timeline to 2 to 4 weeks. Coverage investigations for new specialist relationships can take up to 6 weeks. Incomplete documentation at submission is the most common cause of delays.
Services that commonly require prior authorization include advanced imaging such as MRI, CT, and PET scans; elective surgical procedures; specialty and biologic medications; mental and behavioral health services, including ABA therapy; infusion therapies; durable medical equipment; home health and skilled nursing services; inpatient admissions; and extended physical or occupational therapy. Requirements vary by payer and plan type. Always verify directly with the payer for each patient's specific coverage.
Review the denial notice to identify the specific denial reason. Gather supporting documentation, including a detailed letter of medical necessity, relevant clinical evidence, and records of prior treatments. Submit a formal appeal through the payer's process within the required window, typically 30 to 60 days from the denial date. The treating physician can also request a peer-to-peer review with the payer's medical reviewer, which is frequently the most effective path to overturning a clinical denial. If the internal appeal fails, most states allow providers to request an independent external review. EZ MD Solutions' denial management team can handle this entire process on your behalf.
If a service requiring prior authorization is performed without a valid authorization, the claim will typically be denied. Retroactive authorization, requesting approval after the service has been rendered, is rarely granted and is not guaranteed by any payer. In most cases, the practice must absorb the write-off or bill the patient directly, which creates compliance and patient satisfaction risks. This is why verifying prior authorization requirements at the time of scheduling, before the patient is seen, is essential.
Let EZ MD Solutions handle prior authorization and denial management so your team can focus on patient care.
EZ MD Solutions, LLC supports 75+ active US healthcare practices with a team of 200+ across the US, Latin America, and Asia.
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