How to File an Insurance Claim for Accident-Related Medical Bills in Arizona

After an accident, medical bills often arrive long before the insurance companies decide who is responsible. An ambulance company may send a bill within days. The emergency room, radiology department, physicians, physical therapists, and other providers may each send separate statements.

Many injured people reasonably assume that the at-fault party’s insurance company will begin paying those bills immediately. Unfortunately, that is usually not how a personal injury claim works.

The liability insurance company generally investigates the accident and evaluates your medical expenses as part of a bodily injury claim. It may not pay each provider as treatment occurs. In many cases, payment does not happen until the claim is settled.

That creates three separate questions:

1. Who should pay the medical bills now?
2. Who may ultimately be responsible for the bills?
3. Who may need to be reimbursed from a future settlement?

Understanding those questions can help you avoid collections, denied claims, missing documentation, and an insurance settlement that does not account for all your medical expenses.

At Perez Law Group, PLLC, we help injured people throughout Glendale, Phoenix, and other Arizona communities identify available insurance coverage, organize accident-related medical expenses, and pursue compensation from the responsible parties.

First, Understand the Different Insurance Claims That May Be Available

An accident can create several claims at the same time. They serve different purposes and should not be treated as interchangeable.

Health Insurance

Your health insurance may pay accident-related medical bills according to the terms of your plan. You may still be responsible for deductibles, copayments, coinsurance, and uncovered services.

Using health insurance does not excuse the negligent party from responsibility. It can help prevent medical bills from remaining unpaid while the liability claim is being investigated.

Medical Payments Coverage

Medical Payments coverage, commonly called MedPay, is optional automobile insurance coverage that can pay reasonable and necessary medical expenses up to the policy limit. It may cover the insured driver and passengers regardless of who caused the accident.

The Arizona Department of Insurance and Financial Institutions explains that MedPay can also help with deductibles and copayments that are not covered by a health insurance plan.

The At-Fault Party’s Liability Insurance

The liability claim seeks compensation from the person or business responsible for the accident. Depending on the circumstances, that may be:

• Another driver’s automobile insurance
• A property owner’s premises liability insurance
• A business’s commercial liability coverage
• A homeowner’s insurance policy
• An employer or vehicle owner’s insurance
• A transportation company’s policy

The liability insurer evaluates fault, causation, medical treatment, medical expenses, lost income, and other damages. Unlike health insurance or MedPay, it usually does not function as a bill-paying service while treatment is ongoing.

Uninsured or Underinsured Motorist Coverage

When an at-fault driver has no insurance or insufficient coverage, your own uninsured or underinsured motorist coverage may provide another source of compensation.

Read more about what happens when the at-fault party does not have car insurance in Arizona and what happens when medical bills exceed the at-fault driver’s policy limits.

Our Opinion: Do Not Wait for the Liability Insurer to Pay Your Medical Bills

One of the most damaging misunderstandings after an accident is the belief that the at-fault insurance company will pay every medical bill as it arrives.

While there may be exceptions, injured people should not depend on that happening.

The liability insurer may spend weeks or months investigating fault. It may question whether every treatment was related to the accident. It may wait until treatment is complete before making an offer. Meanwhile, the medical provider may continue sending statements or eventually transfer the account to collections.

Our usual approach is to identify the coverage that can pay bills now, such as health insurance or MedPay, while separately documenting the expenses for the liability claim.

Perez Law Group’s client guidance specifically instructs injured clients to submit medical expenses to health insurance or Medical Payments coverage, maintain their insurance premiums, preserve correspondence from plan administrators, attend medical appointments, and save bills and receipts.

Step 1: Obtain Necessary Medical Care

Your health should come first. Seek appropriate medical attention and follow the recommendations of qualified medical professionals.

Tell each provider that your injuries resulted from an accident. Give the billing department:

• Your health insurance information
• The date of the accident
• Your automobile insurance information, when applicable
• The applicable MedPay claim number
• Your attorney’s contact information, if you are represented

Do not assume that the emergency room gave your insurance information to every physician who treated you. Emergency facilities frequently use separate companies for radiology, emergency physicians, anesthesiology, laboratory services, and ambulance transportation.

Check each bill individually.

Step 2: Identify Every Potential Insurance Policy

Do not stop after obtaining the other driver’s insurance card. Multiple policies may apply.

For an automobile accident, review:

• Your health insurance
• Your automobile insurance
• The policy covering the vehicle you occupied
• The at-fault driver’s policy
• MedPay coverage
• Uninsured motorist coverage
• Underinsured motorist coverage
• An employer’s policy if someone was driving for work
• Commercial coverage if a company vehicle was involved

Passengers may have rights under the policy covering the vehicle in which they were riding. Perez Law Group provides additional information about insurance claims for injured passengers.

For slip-and-fall, dog bite, swimming pool, and other property-related accidents, the claim may involve homeowners, renters, commercial property, or premises liability coverage. Learn more from our Glendale slip-and-fall lawyers.

Step 3: Open the Claim and Obtain a Claim Number

Notify the applicable insurance company as soon as reasonably possible. When opening the claim, be prepared to provide basic information such as:

• Your name and contact information
• The insured person’s name
• The policy number, if available
• The date and location of the accident
• The names of the parties involved
• A basic description of what happened
• Whether you received medical care
• The police or incident report number

Ask the insurer for:

• The claim number
• The adjuster’s name
• The adjuster’s telephone number and email address
• Written confirmation that the claim was received
• A description of the available coverage
• Any required claim forms
• Instructions for submitting medical bills

Arizona insurance rules generally require insurers to acknowledge receipt of a claim within 10 working days unless payment is made during that period. Insurers must also provide necessary forms, instructions, and reasonable assistance for first-party claimants.

A claim against your own MedPay or uninsured motorist coverage is a first-party claim. A claim against another person’s liability insurer is generally a third-party claim.

Be Careful When Speaking With the Other Party’s Insurance Company

You may need to provide enough information to open a claim, but you do not have to speculate about your diagnosis, recovery time, future treatment, or the full extent of your injuries.

Symptoms can change after an accident. Some injuries are not fully diagnosed during the first emergency room visit.

Avoid statements such as:

• “I am fine.”
• “It is only a little soreness.”
• “I should be back to normal next week.”
• “I do not think I will need more treatment.”

Do not sign a medical authorization, release, or settlement agreement without understanding what it permits. A broad medical authorization could give an insurer access to years of unrelated medical history.

Perez Law Group advises its clients not to discuss bodily injury claims or sign accident-related documents without first speaking with their legal team.

Step 4: Request More Than a Medical Bill

A medical bill alone rarely tells the complete story.

For each provider, obtain and preserve:

The Itemized Bill

The itemized bill should identify the dates of service, procedures, charges, payments, adjustments, and current balance.

The Medical Records

Medical records explain why the treatment was provided, what symptoms were reported, the diagnosis, physical restrictions, test results, and future recommendations.

The Explanation of Benefits

An Explanation of Benefits, commonly called an EOB, is not a bill. It shows:

• What the provider charged
• The health plan’s negotiated adjustment
• What insurance paid
• What the plan denied
• What the patient may owe

Proof of Payment

Keep receipts for:

• Copayments
• Deductibles
• Prescriptions
• Medical equipment
• Braces, crutches, or mobility devices
• Over-the-counter medications
• Transportation to medical appointments
• Other accident-related expenses

Insurance and Lien Correspondence

Preserve every letter from:

• Health insurers
• MedPay adjusters
• Medical providers
• Collection agencies
• Lien companies
• Government benefit programs
• Employer-sponsored health plan administrators

Ignoring these letters can create problems when the claim is ready to settle.

Use a Medical Bill Tracking Sheet

A spreadsheet is not unnecessary paperwork. It is evidence.

Create one row for every provider and date of service. Include columns for:

Step 5: Submit the Bills in the Correct Order

There is no single order that applies to every accident, policy, and health plan. However, a common approach is:

Submit the Bill to Health Insurance

Ask the provider to bill your health plan. Confirm that the bill was actually submitted and not merely placed in a “personal injury pending” file.

Some providers incorrectly assume they should wait for the liability settlement. Others may prefer to assert a lien. Do not assume the provider is protecting your interests.

Submit Eligible Expenses to MedPay

Contact the MedPay adjuster and ask what documentation is required. The insurer may request:

• A MedPay application
• An authorization
• Itemized bills
• Medical records
• Proof that the expenses resulted from the accident
• EOBs showing the remaining patient balance

Preserve the Bills for the Liability Claim

The at-fault insurer will eventually need documentation of accident-related medical treatment and expenses. That does not necessarily mean you should send an incomplete settlement demand after the first few appointments.

You should understand the diagnosis, treatment plan, future care, and total expenses before resolving the bodily injury claim.

Composite Case Study 1: The Emergency Room Bill

The following examples are composites created to illustrate recurring claim problems. They are not descriptions of a specific client and do not guarantee any particular result.

A driver is rear-ended and taken to an emergency room. The hospital charges $18,000. The driver receives several statements and forwards only the original hospital bill to the at-fault insurer.

The missing information includes:

• A separate emergency physician bill
• A radiology bill
• The health insurance EOB
• A $1,500 deductible
• A $250 ambulance copayment
• A contractual adjustment made by the health insurer
• A notice that the health plan may seek reimbursement

A complete claim file should show the original charges, insurance payments, adjustments, actual patient responsibility, and any potential reimbursement obligations. Sending only the original hospital statement leaves important financial information unexplained.

Composite Case Study 2: The Injured Passenger

A passenger is injured when a friend’s vehicle is struck by another driver. The passenger assumes that only the at-fault driver’s insurance can help.

However, the vehicle in which the passenger was riding has MedPay coverage. The passenger also has health insurance.

The passenger may be able to use health insurance and the vehicle’s MedPay coverage for immediate expenses while pursuing a separate bodily injury claim against the at-fault driver. Arizona’s MedPay coverage can apply to passengers regardless of who caused the accident.

The lesson is simple: determine what coverage follows the person, what coverage follows the vehicle, and what coverage belongs to the at-fault party.

Composite Case Study 3: The Premature Settlement

A customer falls on a dangerous condition at a business and visits urgent care. The business’s insurer offers to reimburse the urgent care bill and pay an additional amount if the customer signs a release.

The customer is still experiencing pain and has not yet completed the recommended orthopedic evaluation. An MRI and physical therapy may be necessary.

Signing the release would typically end the claim, even if additional injuries or expenses are discovered later.

Our opinion is that an early offer should never be evaluated solely by comparing it to the bills currently sitting on the kitchen table. The more important question is whether the person’s medical condition and future treatment needs are sufficiently understood.

Step 6: Do Not Let Treatment Gaps Damage Your Health or Claim

Missing medical appointments can affect your recovery. It can also give the insurer an argument that:

• The injury was not serious
• The symptoms resolved
• Later treatment was unrelated
• The injured person failed to follow medical advice
• The person made the condition worse by delaying care

There are legitimate reasons for treatment gaps, including transportation problems, inability to miss work, childcare obligations, appointment availability, and financial hardship. Document the reason and communicate with your provider and attorney.

Perez Law Group’s case-management guidance emphasizes attending appointments, maintaining a provider list, communicating symptoms and limitations, and reporting problems with medical care.

Step 7: Watch for Medical Liens and Reimbursement Claims

Receiving payment from health insurance does not always mean the financial issue is finished.

A health insurer, benefit plan, medical provider, or government program may claim a right to reimbursement from the personal injury recovery. The existence and amount of that right depend on the type of plan, policy language, applicable law, and the circumstances of the settlement.

Arizona law also allows certain health care providers to assert liens against damages recovered because of an injury. A lien is not the same as a normal medical bill. Providers must comply with statutory requirements to perfect and enforce a lien.

Arizona law further states that interested parties must compromise qualifying health care liens to provide a settlement that is fair and equitable to the parties.

Do not ignore a lien notice, but do not automatically assume that every amount demanded is valid, enforceable, or nonnegotiable.

Step 8: Prepare a Complete Injury Demand

Once treatment is complete or your condition is sufficiently stable, the liability claim may be presented for settlement.

A well-organized demand may include:

• A description of how the accident occurred
• Evidence establishing fault
• Photographs and videos
• Police or incident reports
• Witness information
• A medical treatment timeline
• Medical records
• Itemized bills
• Health insurance EOBs
• Proof of MedPay payments
• Prescription and medical device receipts
• Lost wage documentation
• Mileage and transportation records
• Information about physical limitations
• Evidence of future treatment recommendations
• Lien and reimbursement information

Perez Law Group’s client process includes preserving evidence, tracking medical providers and expenses, documenting mileage and missed work, and preparing an informational packet for the insurer after treatment has been completed or the medical condition has stabilized.

Do Not Confuse Filing a Claim With Filing a Lawsuit

Opening an insurance claim does not stop the statute of limitations.

Most Arizona personal injury lawsuits are subject to a two-year limitation period.

Some claims have much shorter deadlines. For example, a claim against an Arizona public entity, public school, or public employee may require a formal notice of claim within 180 days. A lawsuit against a public entity or employee generally must be filed within one year.

Insurance policies may also contain notice requirements and other contractual deadlines.

Do not rely on an adjuster’s ongoing investigation as proof that your legal deadline has been extended.

What Should You Do If an Insurance Claim Is Denied?

Ask for the denial in writing. The explanation should identify the policy language or reason supporting the decision.

Then determine why the claim was denied. Common reasons include:

• Incorrect billing codes
• Missing medical records
• Failure to obtain required authorization
• Treatment classified as out of network
• A dispute over whether the treatment was accident-related
• A coverage exclusion
• A missed policy deadline
• A disagreement over medical necessity
• Exhausted policy limits

Arizona health insurance plans must provide a process for appealing denied claims or services. The Arizona Department of Insurance and Financial Institutions also provides information about health care appeals and insurance complaints.

A denial is not always the final answer, but appeal deadlines should be taken seriously.

Common Mistakes When Filing Accident-Related Medical Claims

Waiting for the Other Insurance Company to Pay Everything

The liability claim may take months to resolve. Use available health insurance or MedPay when appropriate.

Refusing to Use Health Insurance

Some injured people believe using health insurance will weaken the claim against the negligent party. In many cases, health insurance can help control unpaid balances while the liability claim remains pending.

Sending Bills Without Medical Records

A charge does not prove why treatment was needed. Medical records connect the injury, symptoms, diagnosis, and treatment to the accident.

Losing EOBs and Receipts

The final balance cannot always be reconstructed from a provider’s statement. Preserve every EOB and proof of payment.

Giving the Adjuster Unlimited Medical Access

A broad authorization may expose unrelated medical history. Review authorizations carefully.

Signing an Early Release

A release can prevent you from seeking additional compensation if your condition worsens or new treatment is recommended.

Ignoring Collection Notices

Contact the provider, confirm whether insurance was billed, request an itemized statement, and discuss available payment arrangements.

Failing to Investigate Additional Coverage

A low liability limit may not be the end of the claim. MedPay, uninsured motorist, underinsured motorist, commercial, employer, or other policies may apply.

When Should You Contact an Arizona Personal Injury Attorney?

Consider obtaining legal advice when:

• Your injuries are serious or require continuing treatment
• Fault is disputed
• The insurer requests a recorded statement
• You receive an early settlement offer
• Medical bills exceed the available liability coverage
• The at-fault party is uninsured
• A government vehicle or public property is involved
• A medical lien has been filed
• Your health insurance or MedPay claim is denied
• Multiple insurance policies may apply
• The insurance company argues that your treatment was unnecessary
• You are being pressured to sign a release

An attorney can investigate coverage, communicate with insurers, collect records and bills, review liens, document damages, and help determine when the claim is ready to be presented.

Contact Perez Law Group About Your Accident-Related Medical Bills

Filing an insurance claim involves more than sending a hospital bill to an adjuster. You must identify the correct coverage, submit the proper documentation, monitor payments and denials, preserve reimbursement notices, and avoid resolving the liability claim before the full medical picture is known.

Perez Law Group, PLLC represents people injured in car accidents, falls, pedestrian accidents, bicycle accidents, and other incidents throughout Arizona.

Speak with an experienced Arizona personal injury attorney about your medical bills, available insurance coverage, and legal options.

Call Perez Law Group, PLLC at (602) 730-7100 or contact our office online to schedule a consultation.