Why "Incident To" Billing Isn't the Silver Bullet for Lactation Practices

As reimbursement for lactation services continues to evolve, more IBCLC practices are asking the same question:

"Should we hire a physician so we can bill everything incident to them?"

At first glance, it sounds like a smart business strategy.

Many practice owners assume they can hire a physician to provide a small amount of oversight—perhaps a few telehealth visits each week—and then bill all lactation services under that physician for higher reimbursement.

Unfortunately, incident-to billing is far more complicated than that.

For many lactation practices, it can actually create more administrative work, increase compliance responsibilities, and in some cases reduce overall revenue.

Understanding Incident-To Billing

Incident-to billing allows certain services furnished by auxiliary personnel to be billed under a supervising physician or other eligible practitioner when all applicable payer requirements are met.

Although the concept originated with Medicare, commercial insurers frequently have their own policies, which may differ substantially from Medicare and from one another.

Incident-to billing is not simply a billing method—it represents a particular model of care delivery. Depending on the payer, requirements may include:

• The supervising provider establishes the patient's plan of care.

• Ongoing involvement by the supervising provider in the patient's treatment.

• The required level of supervision.

• Documentation demonstrating compliance with the payer's requirements.

• Compliance with federal guidance and the payer's contractual billing policies.

Simply hiring a physician—or another licensed medical provider—does not automatically create a compliant incident-to billing arrangement.

Hiring a Physician Doesn't Automatically Increase Reimbursement

One of the most common misconceptions is:

"We'll just hire a physician to oversee our IBCLCs and bill everything under them."

Incident-to billing is not intended to allow a physician to simply "lend" their billing credentials to services they were not appropriately involved in under the applicable payer's rules.

A physician who only performs occasional telehealth visits or has minimal involvement in the patient's care may not satisfy the requirements established by many payers for incident-to billing.

Practices considering this model often discover they must redesign their entire clinical workflow so physician participation is meaningfully integrated into patient care—not simply added for billing purposes.

Nurse Practitioners Are Not a Shortcut

Some practices assume hiring a nurse practitioner creates an easier path.

However, employing a nurse practitioner alone does not automatically satisfy incident-to requirements. Whether services may be billed under another provider depends on the payer's rules, the required supervision, the established plan of care, and other billing requirements.

Practices should never assume services furnished by an IBCLC can be billed under another provider without confirming that all applicable payer requirements are satisfied.

The Coding Challenge

Even if an incident-to model is properly established, coding often becomes the next obstacle.

Many commercial insurers recognize HCPCS S9443 (Lactation Classes, Non-Physician Provider, Per Session) as the primary code for lactation counseling provided by qualified non-physician providers.

The description itself specifies "non-physician provider."

When practices move to a physician-based billing model, they frequently rely on physician evaluation, counseling, or time-based codes instead of S9443, depending on the payer's policies.

For many practices, this results in lower reimbursement than anticipated.

One Appointment, Two Patients

Lactation care is unique because one appointment frequently involves two patients.

The mother receives care.

The infant receives care.

There is still only one clinical encounter and one block of billable time.

A 90-minute lactation consultation is not two separate 90-minute visits simply because two claims are submitted.

When billing time-based services, the available time generally must be allocated between the mother and infant based on the services actually provided. Reporting the full visit duration on both claims may create duplicate billing concerns.

Instead of increasing reimbursement, practices often discover that the available reimbursement from time-based codes must effectively be divided between two patients.

When IBCLCs Can Bill Directly, Think Carefully Before Changing Models

Many commercial insurers already recognize qualified IBCLCs as reimbursable providers for lactation counseling.

When a payer has an established reimbursement pathway for IBCLCs, practices should carefully evaluate whether changing to an incident-to model provides a legitimate clinical or operational advantage.

Incident-to billing is intended to reflect how care is actually delivered—not simply to obtain a different reimbursement rate.

If the primary reason for changing the billing provider is higher reimbursement rather than because the services genuinely satisfy the payer's incident-to requirements, the practice should proceed cautiously. Payers expect the billed provider, coding, and documentation to accurately represent the care that was furnished and to comply with the payer's billing rules.

Claims that fail to meet those requirements may be denied, recouped, or become the subject of an audit.

More Complexity Doesn't Always Mean More Revenue

Ironically, hiring a physician solely to improve reimbursement may produce the opposite outcome.

Practices may encounter:

• Lower reimbursement than payer policies recognizing S9443.

• Physician salary or contract expenses.

• Increased documentation requirements.

• Greater supervision obligations.

• More administrative complexity.

• Additional compliance responsibilities.

• Greater audit exposure if incident-to requirements are not fully met.

The practice assumes greater operational responsibility while potentially collecting less for the same patient visit.

A Practical Alternative: The Hybrid Practice Model

For many IBCLC practices, the simplest and most sustainable approach is a hybrid model.

Practices contract with insurers that credential and reimburse qualified IBCLCs directly. For insurers that do not offer a practical reimbursement pathway, the practice may choose to remain private pay and provide patients with a superbill when appropriate so they can pursue any available out-of-network reimbursement or submit documentation to their health plan.

This approach offers several advantages:

• The claim accurately reflects the provider who delivered the care.

• Practices avoid restructuring their workflow solely to fit an incident-to billing model.

• Administrative complexity is reduced.

• Compliance risks associated with inappropriate billing arrangements may be minimized.

• Practices maintain greater control over their reimbursement and operations.

It also provides transparency about where access barriers exist.

The Affordable Care Act requires most non-grandfathered health plans to cover comprehensive breastfeeding support, counseling, and equipment as preventive services, although implementation varies among plans and payers. When patients discover they cannot reasonably access an in-network IBCLC or must pay out of pocket because their health plan lacks a practical reimbursement pathway, they often contact their insurer, employer, or state insurance regulator to ask why.

Patient feedback has historically been an important driver of improvements in insurance coverage and provider network policies. Clear communication about available reimbursement options and existing coverage limitations helps patients advocate for the access they expect under their health plan.

The Bottom Line

Incident-to billing has an appropriate role in healthcare, but it is not a universal solution for lactation practices.

When a payer already recognizes IBCLCs as qualified providers, restructuring an entire practice around incident-to billing may create additional complexity without delivering the financial advantages many practices expect.

For many IBCLC practices, participating with insurers that reimburse IBCLCs directly while maintaining a transparent private-pay option for plans that do not, offers a simpler, more sustainable path. It allows billing to reflect the care being delivered accurately, supports compliance with payer requirements, and gives patients clear information about their coverage and reimbursement options.

The best billing strategy is not necessarily the one that promises the highest reimbursement. It is the one that accurately reflects the services provided, complies with payer requirements, and supports long-term access to high-quality lactation care.