What Is Buy-and-Bill? Understanding How Infusion Medications Are Provided
If you receive infusion therapy or work in a medical practice that refers patients for specialty medications, you may have heard the term "buy-and-bill."
While it sounds like an insurance term, buy-and-bill is actually a common way healthcare providers obtain and administer medications used in outpatient medical settings.
Understanding how it works can help patients and referring providers better understand what happens behind the scenes before an infusion appointment.
At Springside Infusion, our team helps coordinate these details so patients can focus on what matters most: receiving their prescribed treatment.
What Does Buy-and-Bill Mean?
With the buy-and-bill model, a healthcare provider or infusion center purchases a medication from an authorized distributor, administers it to the patient, and then submits a claim to the patient's insurance plan for the medication and related services.
In simple terms:
The infusion center obtains the medication → the patient receives treatment → the insurance company is billed according to the patient's coverage.
This model is commonly used for medications administered by infusion or injection in a physician's office, hospital outpatient department, or independent infusion center.
Why Aren't These Medications Filled at a Regular Pharmacy?
Many infusion medications are different from prescriptions you pick up at your neighborhood pharmacy.
Specialty medications may require:
- Refrigerated or temperature-controlled storage
- Specialized handling
- Preparation before administration
- Weight-based or individualized dosing
- Administration by a trained healthcare professional
- Clinical monitoring during and after treatment
For these reasons, many medications are administered in controlled medical environments rather than dispensed directly to patients.
Medical Benefit vs. Pharmacy Benefit
One of the most confusing aspects of specialty medications is determining which portion of your insurance covers them.
Some infusion medications are covered under a patient's medical benefit. These medications are often supplied through a buy-and-bill model.
Other medications may be covered under the pharmacy benefit, which may require the medication to come from a specialty pharmacy.
The requirements depend on the patient's insurance plan, medication, diagnosis, and site of care.
That's one reason insurance verification is such an important part of preparing for infusion therapy.
What Is Specialty Pharmacy or "White Bagging"?
Sometimes an insurance company requires a medication to be supplied by a designated specialty pharmacy rather than purchased by the infusion center.
This is sometimes referred to as white bagging.
In this model, the specialty pharmacy dispenses the medication specifically for an individual patient and sends it to the healthcare facility where it will be administered.
The process differs from buy-and-bill, but the goal remains the same: ensuring the appropriate medication is available for the patient's scheduled treatment.
Insurance requirements determine which options may be available for an individual patient.
Why Does This Matter to Patients?
Most patients don't need to manage the medication-purchasing process themselves, but the way a drug is covered and supplied can affect:
- Prior authorization requirements
- Where treatment can be administered
- How the medication is obtained
- Scheduling timelines
- Insurance claims
- Potential out-of-pocket costs
Completing these steps before treatment helps reduce the chance of unexpected delays or coverage issues.
How Springside Infusion Helps Coordinate the Process
There can be a surprising amount happening behind the scenes between the moment your physician prescribes an infusion and the day you sit down for treatment.
Our team works with referring providers and insurance plans to help determine:
- Whether authorization is required
- How the medication is covered
- Whether the medication can be obtained through buy-and-bill
- Whether specialty pharmacy requirements apply
- What clinical documentation may be needed
- Whether required laboratory or treatment criteria have been completed
Once the necessary requirements are in place, we can coordinate medication procurement and scheduling according to the patient's treatment plan.
Supporting Patients and Their Providers
For referring practices, infusion therapy can involve significant administrative work, from insurance verification and authorization to medication procurement and ongoing coordination.
An outpatient infusion center can help manage many of these operational details while the referring physician remains responsible for the patient's underlying treatment plan.
At Springside Infusion, our goal is to create a collaborative relationship with both patients and referring providers.
Your physician determines the treatment. Our team helps make the infusion happen.
If you are a patient who has been prescribed infusion therapy, or a healthcare provider looking for an outpatient infusion partner, contact Springside Infusion to learn more about our referral process.
Frequently Asked Questions
Does buy-and-bill mean I have to purchase my medication?
No. In a traditional buy-and-bill arrangement, the healthcare provider purchases the medication and subsequently bills the patient's insurance plan according to applicable coverage.
Is buy-and-bill covered by insurance?
Many physician-administered medications are covered under a patient's medical benefit, but coverage varies by insurance plan, diagnosis, medication, and other requirements. Benefits should be verified before treatment.
What is the difference between buy-and-bill and specialty pharmacy?
With buy-and-bill, the healthcare provider generally purchases the medication. With a specialty-pharmacy model, a pharmacy may dispense medication specifically for an individual patient and coordinate delivery according to the insurer's requirements.
Will I know what my treatment may cost before my infusion?
Insurance benefits can be reviewed before treatment to help patients understand applicable deductibles, copays, or coinsurance. Final patient responsibility is determined by the insurance plan and claim processing.


