Phantom Billing: How to Verify Medical Services

What you will find below:

• What Phantom Billing Means for Claims Teams
• How to Verify Disputed Treatment Encounters
• Where Bill Review and Factual Investigation Differ
• How to Document and Resolve Billing Discrepancies

Phantom billing means charging for medical services or supplies a patient never received. The FBI identifies it as a form of health care fraud. For claims teams, investigating suspected phantom billing starts with verifying whether the reported care occurred.

A November 2026 federal fraud case illustrates why that distinction matters. The Department of Justice announced that a New York adult day care program director pleaded guilty in a scheme involving approximately $127 million in Medicare and New York State Medicaid fraud. The scheme included billing for services that were never provided and for medically unnecessary prescriptions.

How Does Phantom Billing Differ From Other Billing Issues?

Phantom billing occurs when a provider bills for a service, procedure, or medical supply that was never actually provided. This differs from other billing issues, such as duplicate billing, incorrect coding, or unbundling, where a service may have occurred but the charges are inaccurate or improperly submitted.

Medical bill review evaluates charges, coding, and pricing against applicable fee schedules and agreements. It can also help flag charges that may not align with the documented services provided, bringing potential phantom billing and other billing irregularities to light.

How to Verify Medical Services

To verify disputed medical services, compare the billed encounter with supporting records, identify unresolved factual questions, and document how discrepancies were resolved.

Start With the Treatment Timeline

When a billed encounter raises concerns, a chronology can help organize records that are authorized for review. Compare the service date, location, treating professional, and description of care with available documentation.

It’s important to ask what evidence would establish the disputed event. For an office visit, that could mean the patient’s account and encounter records. For medical equipment, consider delivery records and confirmation of receipt.

For example, imagine a workers’ compensation claim with an outpatient therapy charge during a documented hospital admission. The overlap warrants clarification. It does not, by itself, establish that the provider deliberately submitted a false bill.

Claims professionals can follow up with the provider to clarify whether the date is incorrect, the service took place in another setting, or a corrected claim exists. The provider’s explanation should be documented and compared with the underlying records before drawing a conclusion.

Separate Bill Review From Fact Verification

Medical bill review findings can raise questions that require further investigation. If a disputed encounter remains unverified, claims professionals should identify a specific factual question for follow-up rather than assuming a billing adjustment resolves the issue.

Claims teams should document whether the review verified the service, corrected the billing, or left the encounter unresolved. A corrected amount does not replace evidence confirming whether care occurred.

When requesting further investigation, claims professionals should provide a specific question to address. For example, “Confirm whether the patient attended therapy on these dates” is more useful than a broad instruction to look for fraud. Keeping the request focused on the discrepancy helps guide the investigation and ensures records are obtained through the organization’s authorized process.

Resolve Discrepancies Before Labeling Them Fraud

A clear investigation file should identify the disputed charge, the reason for concern, the evidence reviewed, and any explanation received. Claims professionals should separate verified findings from unanswered questions.

If the evidence confirms that care occurred, claims professionals should document how the discrepancy was resolved. If the issue remains unresolved, the file should explain what information is missing and identify the next steps under the organization’s established review process.

When reviewing disputed services, claims professionals should compare the reported encounter with the available evidence. The claim file should explain what supports the reported service, what contradicts it, and how the final determination was reached.

Want to strengthen your medical bill review process? Connect with our team today.

Sources:

• Centers for Medicare & Medicaid Services. “Chapter 4: Program Integrity.” Medicare Program Integrity Manual, rev. 13879, 23 July 2026, sec. 4.9.1, https://www.cms.gov/Regulations-and-Guidance/Guidance/Manuals/downloads/pim83c04.pdf.
• Federal Bureau of Investigation. “Healthcare Fraud.” FBI, https://www.fbi.gov/investigate/complex-financial-crime/healthcare-fraud.
• United States, Department of Justice, Office of Public Affairs. “Social Adult Day Care Program Director Pleads Guilty to $127M Medicare and Medicaid Fraud Scheme.” U.S. Department of Justice, 10 Nov. 2026, https://www.justice.gov/opa/pr/social-adult-day-care-program-director-pleads-guilty-127m-medicare-and-medicaid-fraud-scheme.