assignment of benefit forms

• Type 2 Diabetes
• Heart Disease
• Digestive Health
• Multiple Sclerosis
• COVID-19 Vaccines
• Occupational Therapy
• Healthy Aging
• Health Insurance
• Public Health
• Patient Rights
• Caregivers & Loved Ones
• End of Life Concerns
• Health News
• Thyroid Test Analyzer
• Doctor Discussion Guides
• Hemoglobin A1c Test Analyzer
• Lipid Test Analyzer
• Complete Blood Count (CBC) Analyzer
• What to Buy
• Editorial Process
• Meet Our Medical Expert Board

Medicare Assignment: Everything You Need to Know

Medicare assignment.

• Providers Accepting Assignment
• Providers Who Do Not
• Billing Options
• Assignment of Benefits
• How to Choose

Frequently Asked Questions

Medicare assignment is an agreement between Medicare and medical providers (doctors, hospitals, medical equipment suppliers, etc.) in which the provider agrees to accept Medicare’s fee schedule as payment in full when Medicare patients are treated.

This article will explain how Medicare assignment works, and what you need to know in order to ensure that you won’t receive unexpected bills.

fizkes / Getty Images

There are 35 million Americans who have Original Medicare. Medicare is a federal program and most medical providers throughout the country accept assignment with Medicare. As a result, these enrollees have a lot more options for medical providers than most of the rest of the population.

They can see any provider who accepts assignment, anywhere in the country. They can be assured that they will only have to pay their expected Medicare cost-sharing (deductible and coinsurance, some or all of which may be paid by a Medigap plan , Medicaid, or supplemental coverage provided by an employer or former employer).

It’s important to note here that the rules are different for the 29 million Americans who have Medicare Advantage plans. These beneficiaries cannot simply use any medical provider who accepts Medicare assignment.

Instead, each Medicare Advantage plan has its own network of providers —much like the health insurance plans that many Americans are accustomed to obtaining from employers or purchasing in the exchange/marketplace .

A provider who accepts assignment with Medicare may or may not be in-network with some or all of the Medicare Advantage plans that offer coverage in a given area. Some Medicare Advantage plans— health maintenance organizations (HMOs) , in particular—will only cover an enrollee’s claims if they use providers who are in the plan's network.

Other Medicare Advantage plans— preferred provider organizations (PPOs) , in particular—will cover out-of-network care but the enrollee will pay more than they would have paid had they seen an in-network provider.

Original Medicare

The bottom line is that Medicare assignment only determines provider accessibility and costs for people who have Original Medicare. People with Medicare Advantage need to understand their own plan’s provider network and coverage rules.

When discussing Medicare assignment and access to providers in this article, keep in mind that it is referring to people who have Original Medicare.

How to Make Sure Your Provider Accepts Assignment

Most doctors, hospitals, and other medical providers in the United States do accept Medicare assignment.

Provider Participation Stats

According to the Centers for Medicare and Medicaid Services, 98% of providers participate in Medicare, which means they accept assignment.

You can ask the provider directly about their participation with Medicare. But Medicare also has a tool that you can use to find participating doctors, hospitals, home health care services, and other providers.

There’s a filter on that tool labeled “Medicare-approved payment.” If you turn on that filter, you will only see providers who accept Medicare assignment. Under each provider’s information, it will say “Charges the Medicare-approved amount (so you pay less out-of-pocket).”

What If Your Provider Doesn’t Accept Assignment?

If your medical provider or equipment supplier doesn’t accept assignment, it means they haven’t agreed to accept Medicare’s approved amounts as payment in full for all of the services.

These providers can still choose to accept assignment on a case-by-case basis. But because they haven’t agreed to accept Medicare assignment for all services, they are considered nonparticipating providers.

Note that "nonparticipating" does not mean that a provider has opted out of Medicare altogether. Medicare will still pay claims for services received from a nonparticipating provider (i.e., one who does not accept Medicare assignment), whereas Medicare does not cover any of the cost of services obtained from a provider who has officially opted out of Medicare.

If a Medicare beneficiary uses a provider who has opted out of Medicare, that person will pay the provider directly and Medicare will not be involved in any way.

Physicians Who Have Opted Out

Only about 1% of all non-pediatric physicians have opted out of Medicare.

For providers who have not opted out of Medicare but who also don’t accept assignment, Medicare will still pay nearly as much as it would have paid if you had used a provider who accepts assignment. Here’s how it works:

• Medicare will pay the provider 95% of the amount they would pay if the provider accepted assignment.
• The provider can charge the person receiving care more than the Medicare-approved amount, but only up to 15% more (some states limit this further). This extra amount, which the patient has to pay out-of-pocket, is known as the limiting charge . But the 15% cap does not apply to medical equipment suppliers; if they do not accept assignment with Medicare, there is no limit on how much they can charge the person receiving care. This is why it’s particularly important to make sure that the supplier accepts Medicare assignment if you need medical equipment.
• The nonparticipating provider may require the person receiving care to pay the entire bill up front and seek reimbursement from Medicare (using Form CMS 1490-S ). Alternatively, they may submit a claim to Medicare on behalf of the person receiving care (using Form CMS-1500 ).
• A nonparticipating provider can choose to accept assignment on a case-by-case basis. They can indicate this on Form CMS-1500 in box 27. The vast majority of nonparticipating providers who bill Medicare choose to accept assignment for the claim being billed.
• Nonparticipating providers do not have to bill your Medigap plan on your behalf.

Billing Options for Providers Who Accept Medicare

When a medical provider accepts assignment with Medicare, part of the agreement is that they will submit bills to Medicare on behalf of the person receiving care. So if you only see providers who accept assignment, you will never need to submit your own bills to Medicare for reimbursement.

If you have a Medigap plan that supplements your Original Medicare coverage, you should present the Medigap coverage information to the provider at the time of service. Medicare will forward the claim information to your Medigap insurer, reducing administrative work on your part.

Depending on the Medigap plan you have, the services that you receive, and the amount you’ve already spent in out-of-pocket costs, the Medigap plan may pay some or all of the out-of-pocket costs that you would otherwise have after Medicare pays its share.

(Note that if you have a type of Medigap plan called Medicare SELECT, you will have to stay within the plan’s network of providers in order to receive benefits. But this is not the case with other Medigap plans.)

After the claim is processed, you’ll be able to see details in your MyMedicare.gov account . Medicare will also send you a Medicare Summary Notice. This is Medicare’s version of an explanation of benefits (EOB) , which is sent out every three months.

If you have a Medigap plan, it should also send you an EOB or something similar, explaining the claim and whether the policy paid any part of it.

What Is Medicare Assignment of Benefits?

For Medicare beneficiaries, assignment of benefits means that the person receiving care agrees to allow a nonparticipating provider to bill Medicare directly (as opposed to having the person receiving care pay the bill up front and seek reimbursement from Medicare). Assignment of benefits is authorized by the person receiving care in Box 13 of Form CMS-1500 .

If the person receiving care refuses to assign benefits, Medicare can only reimburse the person receiving care instead of paying the nonparticipating provider directly.

Things to Consider Before Choosing a Provider

If you’re enrolled in Original Medicare, you have a wide range of options in terms of the providers you can use—far more than most other Americans. In most cases, your preferred doctor and other medical providers will accept assignment with Medicare, keeping your out-of-pocket costs lower than they would otherwise be, and reducing administrative hassle.

There may be circumstances, however, when the best option is a nonparticipating provider or even a provider who has opted out of Medicare altogether. If you choose one of these options, be sure you discuss the details with the provider before proceeding with the treatment.

You’ll want to understand how much is going to be billed and whether the provider will bill Medicare on your behalf if you agree to assign benefits (note that this is not possible if the provider has opted out of Medicare).

If you have supplemental coverage, you’ll also want to check with that plan to see whether it will still pick up some of the cost and, if so, how much you should expect to pay out of your own pocket.

A medical provider who accepts Medicare assignment is considered a participating provider. These providers have agreed to accept Medicare’s fee schedule as payment in full for services they provide to Medicare beneficiaries. Most doctors, hospitals, and other medical providers do accept Medicare assignment.

Nonparticipating providers are those who have not signed an agreement with Medicare to accept Medicare’s rates as payment in full. However, they can agree to accept assignment on a case-by-case basis, as long as they haven’t opted out of Medicare altogether. If they do not accept assignment, they can bill the patient up to 15% more than the Medicare-approved rate.

Providers who opt out of Medicare cannot bill Medicare and Medicare will not pay them or reimburse beneficiaries for their services. But there is no limit on how much they can bill for their services.

A Word From Verywell

It’s in your best interest to choose a provider who accepts Medicare assignment. This will keep your costs as low as possible, streamline the billing and claims process, and ensure that your Medigap plan picks up its share of the costs.

If you feel like you need help navigating the provider options or seeking care from a provider who doesn’t accept assignment, the Medicare State Health Insurance Assistance Program (SHIP) in your state may be able to help.

A doctor who does not accept Medicare assignment has not agreed to accept Medicare’s fee schedule as payment in full for their services. These doctors are considered nonparticipating with Medicare and can bill Medicare beneficiaries up to 15% more than the Medicare-approved amount.

They also have the option to accept assignment (i.e., accept Medicare’s rate as payment in full) on a case-by-case basis.

There are certain circumstances in which a provider is required by law to accept assignment. This includes situations in which the person receiving care has both Medicare and Medicaid. And it also applies to certain medical services, including lab tests, ambulance services, and drugs that are covered under Medicare Part B (as opposed to Part D).

In 2021, 98% of American physicians had participation agreements with Medicare, leaving only about 2% who did not accept assignment (either as a nonparticipating provider, or a provider who had opted out of Medicare altogether).

Accepting assignment is something that the medical provider does, whereas assignment of benefits is something that the patient (the Medicare beneficiary) does. To accept assignment means that the medical provider has agreed to accept Medicare’s approved fee as payment in full for services they provide.

Assignment of benefits means that the person receiving care agrees to allow a medical provider to bill Medicare directly, as opposed to having the person receiving care pay the provider and then seek reimbursement from Medicare.

Centers for Medicare and Medicaid Services. Medicare monthly enrollment .

Centers for Medicare and Medicaid Services. Annual Medicare participation announcement .

Centers for Medicare and Medicaid Services. Lower costs with assignment .

Centers for Medicare and Medicaid Services. Find providers who have opted out of Medicare .

Kaiser Family Foundation. How many physicians have opted-out of the Medicare program ?

Center for Medicare Advocacy. Durable medical equipment, prosthetics, orthotics, and supplies (DMEPOS) updates .

Centers for Medicare and Medicaid Services. Check the status of a claim .

Centers for Medicare and Medicaid Services. Medicare claims processing manual. Chapter 26 - completing and processing form CMS-1500 data set .

Centers for Medicare and Medicaid Services. Ambulance fee schedule .

Centers for Medicare and Medicaid Services. Prescription drugs (outpatient) .

By Louise Norris Louise Norris has been a licensed health insurance agent since 2003 after graduating magna cum laude from Colorado State with a BS in psychology.

• Practice Areas
• Terminology
• Entrepreneurship
• Medical Billing
• Healthcare Conferences

What is Assignment of Benefits in Medical Billing?

An assignment of benefits is the act of signing documentation authorizing a health insurance company to pay a physician directly. In other words, the insurance company can pay claims without the direct involvement of the patient in the process. There are other situations where AOBs can be helpful, but we’ll focus on their use in relation to medical benefits.

If there isn’t an assignment of benefits agreement in place, the patient would be responsible for paying the other party directly from their own pocket, then filing a claim with their insurance provider to receive reimbursement. This could be time-consuming and costly, especially if the patient has no idea how to file a claim.

The document is typically signed by patients when they undergo medical procedures. The purpose of this form is to assign the responsibility of payment for any future medical bills that may arise after the procedure. It’s important to note that not all procedures require an AOB.

An assignment of benefits agreement might be utilized to pay a medical practitioner the patient didn’t choose, like an anesthesiologist. The patient may have picked a surgeon, but an anesthesiologist assigned on the day of the procedure might issue a separate bill. They’re, in essence, signing that anyone involved in their treatment can receive direct payment from the insurance carrier. It doesn’t have to go through the patient.

This document can also eliminate service fees surrounding processing. As a result, the patient can focus on medical treatment and recovery without being bogged down with the complexities of paying medical bills. The overall intent of an assignment of benefits agreement is to make the process more manageable for the patient, as they don’t need to haggle directly with their insurer.

List of Providers and Services

When the patient signs an AOB agreement, they give a third party right to obtain payment for services the provider performed, and medical billing services are a prime example of where they may sign an AOB agreement.

• Ambulance services
• Medical insurance claims
• Drugs and pharmaceuticals
• Diagnostic and clinical lab services
• Emergency surgical center services
• Dialysis supplies and equipment used in the home
• Physician services for Medicare and Medicaid patients

Services of professionals other than a primary care physician, which includes:

• Physician assistants
• Clinical nurse specialists
• Clinical social workers
• Clinical psychologists
• Certified registered nurse anesthetists

Information Commonly Requested on Assignment of Benefits Form:

• Signature of patient or person legally responsible
• Signature of parent or legal guardian

How AOBs Affect the Medical Practitioner

A medical provider or their administrative staff may feel overwhelmed by the sheer number of forms patients must fill out prior to treatment. Demanding more paperwork from patients may be seen as an added burden on the managerial staff, as well as the patient. However, getting a signed AOB is vital in preserving the interests of everyone involved.

In addition to receiving direct payment from the insurance company without needing to go through the patient, a signed assignment of benefits form will help medical providers appeal denied and underpaid claims. They can ask that payments be made directly to them rather than through the patient. This makes the process more manageable for both the doctors and the patient.

Things to Bear in Mind

The patient gives their rights and benefits to third parties under their current health plan. Depending on the wording in the AOB, their insurer may not be allowed to contact them directly about their claims. In addition, the patient may be unable to negotiate settlements or approve payments on their behalf and enable third parties to endorse checks on behalf of the patient. Finally, when the patient signs an AOB, the insurer may sue the third parties involved in the dispute.

Looking for a qualified medical billing service?

By taking just 1 minute to provide some basic information about your practice, you can get up to 5 pre-screened companies competing for your business.

Related Posts

What Is Cosmetic Dermatology? Your Guide to Treatments, Costs, and More

What is a clia number in medical billing, healthcare revenue cycle management explained, leave a reply.

Your email address will not be published. Required fields are marked *

Save my name, email, and website in this browser for the next time I comment.

Caring ‣ Urgent ‣ Aggressive

• Call For A Free Legal Consultation: (201) 261-1700
• Physician Reimbursement
• PIP / No-Fault Arbitration
• Workers’ Compensation Recovery
• Hospital Reimbursement
• ERISA Litigation Claim Attorneys
• Healthcare Arbitration
• Bicycle Accident
• Brain Injury
• Bus Accident
• Car Accident
• Construction Accident
• Hit and Run
• Motorcycle Accident
• Negligent Supervision
• Nursing Home Negligence
• Pedestrian Accident
• Slip and Fall
• Truck Accident
• Train Accident
• Wrongful Death
• Workers Compensation
• Business Disputes
• Business Justice Attorneys
• Employment Counseling and Litigation
• Shareholder/Partner Issues
• Shareholder Derivative Actions
• Business Dissolutions
• Business Transactions
• Buying/Selling a Business
• Corporate Entity Formation
• Director and Officers Duties
• Executive Compensation
• Negotiating Vendor Agreements
• Regulatory and Statutory Compliance
• Age Discrimination
• Disability Discrimination
• Gender Identity Discrimination
• Race Discrimination
• Religious Discrimination
• Sex Discrimination
• Appellate Law
• Child Custody
• Child Custody College Expenses
• Child Support
• Divorce for Business Owners
• Divorce Mediation
• Domestic Violence
• Prenuptial Agreements
• Property Distribution
• Understanding The Divorce Process
• Auto Insurance/Property Damage
• All-risks Property Insurance
• Commercial General Liability (CGL) Insurance
• Disability Insurance
• Health Insurance
• Insurance Agent/Broker Negligence
• Life Insurance
• Long-term Care Insurance
• Marine/Boat Insurance
• Wind & Flood Property Insurance
• Commercial Purchase
• Commercial Sales
• Commercial Lease Agreement
• First-Time Home Buyer
• Lease Agreements
• Real Estate Closing
• Refinancing
• Residential Purchases
• Residential Sales
• Title Review
• Estate Planning
• Estate Planning for Business Owners
• Healthcare Directives
• Powers of Attorney
• Trust Drafting
• Will Contest
• Will Drafting
• Sean Callagy Esq
• The Callagy Law Team
• Testimonials
• Join Our Team
• Message of Empathy
• Business Law
• Commercial Litigation
• News & Events
• Medical Revenue Recovery
• Personal Injury
• Free Legal Guides
• Paramus, NJ Office
• New York, NY Office
• Phoenix, AZ Office
• East Hanover, NJ Office

Call For A Free Legal Consultation

(201) 261 - 1700

Insurance claims , medical revenue recovery, what should an assignment of benefits form include.

An assignment of benefits form (AOB) is a crucial document in the healthcare world. It is an agreement by which a patient transfers the rights or benefits under their insurance policy to a third-party – in this case, the medical professional who provides services. This way, the medical provider can file a claim and collect insurance payments. In the context of personal injury protection coverage, an AOB is a critical step in the reimbursement process.

Personal injury protection coverage , or PIP, is designed to cover medical expenses and lost wages incurred after an auto accident, regardless of who is at fault. In New Jersey, drivers are required to carry PIP. Now, let’s say there’s an accident: the driver sees a medical provider for treatment, and the provider bills the patient’s carrier. There is nothing that requires that the insurance carrier to pay the provider. 

This is why an assignment of benefits form is so important. It essentially removes the patient from the equation and puts the medical provider in their place as far as the insurance policy is concerned. This enables the provider to be paid directly. If you see PIP patients and want to be paid directly by the insurer (and avoid claim denials or complex legal situations later) you must get an AOB.

The AOB authorization creates a legal relationship between the provider and the insurance carrier. What should it include?

• Correct Business Entity

Fill out your business name correctly: it seems simple, but this can be a stumbling block to reimbursement. If your business name is Dr. Smith’s Chiropractic Care Center, you cannot substitute Dr. Smith’s, Smith’s Chiropractic, etc.  It must be Dr. Smith’s Chiropractic Care Center. If you have a FEIN number, use the name that is listed on your Health Care Financing Administration (HCFA) form.

• “Irrevocable” 

It is important that you include this term to indicate that the patient cannot later revoke the assignment of benefits. This tells the court that the AOB is the only document determining standing , or the ability to bring a lawsuit on related matters.

Another key term: the court sees benefits as payments. It does not necessarily give you the right to bring a lawsuit. Include language such as, “assigns the rights and benefits, including the right to bring suit…” 

• Benefit of Not Being Billed At This Time for Services

Essentially, this means that a provider gives up the right to collect payments at the time of service in exchange for the right to bring suit against the insurance company if they are not paid in full. Likewise, the patient gives up the right to bring suit, but they do not have to pay now. The wording will look like this: “In exchange for patient assigning the rights and benefits under their PIP insurance, Dr. Smith’s Chiropractic Care Center will allow patients to receive services without collecting payments at this time.”

• Patient Signature 

Yes, it’s basic, but make sure the assignment of benefits form is signed and dated by the patient! This renders the AOB , for all intents and purposes, null and void. It is not an executed contract. You would have to start the entire process again, which means waiting longer to be reimbursed for the claim. 

• Power of Attorney Clause

Including a power of attorney clause, which supports not only “the right of collecting payment” but also the provider’s ability to take legal action on behalf of the patients, is vital. At Callagy Law, we always argue this is inherent within the no-fault statute; however, there are carriers to argue against the right to arbitration when the language is not in the AOB.

As medical providers, it is critical that you receive proper – and timely – reimbursement for services rendered. The assignment of benefits form is one of the most important pieces in this puzzle. It is essential for an attorney to prepare, or at least review, your AOB and other admission paperwork to ensure that you are able to collect pursuant to your patients’ insurance benefits in whatever ways needed. 

Callagy Law can not only review these documents, but also ensure you are pursuing all recoverable bills to which you are eligible. If you have any questions, would like us to review your AOB form, or have issues collecting payment from insurance companies, please contact the Callagy Law team today .

Leave a Reply

Your email address will not be published. Required fields are marked *

• Wind & Flood Property Insurance
• FREE LEGAL GUIDES