A widespread fraud targeting the French national health insurance system, the Caisse Primaire d’Assurance Maladie (CPAM), has come to light, with investigators estimating losses of €58 million. Seven individuals have been placed under formal investigation, accused of billing for fictitious medical services, in some instances even using the names of deceased practitioners, according to a statement released Thursday by the Paris prosecutor’s office.
The scheme, which appears to have been operating across France, involved a significant increase in fraudulent billing following the acquisition of dental practices by new operators beginning in late 2024. Authorities say the perpetrators exploited a loophole related to the *Complémentaire Santé Solidaire* (CSS), a supplemental health coverage program, which allowed them to bill the CPAM for 100% of the cost of services. This allowed for inflated claims and maximized fraudulent payouts.
“This is an exceptional fraud in terms of its scale,” stated Fabien Badinier, director of control and fraud prevention at the Assurance Maladie, to the Agence France-Presse. The investigation, which began gaining momentum in early 2025, revealed a sophisticated operation involving the utilize of prepaid mobile phones and shell accounts to conceal the source of the fraudulent activity. More than €300,000 has been seized by authorities, with further asset freezes underway, officials confirmed.
A Network of Fictitious Claims
The investigation, led by the specialized interregional jurisdiction (JIRS) of Paris, began to unravel after the Assurance Maladie detected “atypies” – unusual patterns – in reimbursement claims from several dental centers. These anomalies, coupled with reports from concerned employees, prompted a deeper investigation that ultimately revealed the extent of the fraud. The scheme wasn’t limited to a single location; investigators have identified 18 potentially compromised dental centers in cities including Soissons, Clamart, Neuilly-sur-Seine, Boulogne, Montmorency, Rueil-Malmaison, Gentilly, Vincennes and Fontaine.
Prosecutors allege that the individuals under investigation facilitated the fraud through various means, including altering bank account details, manipulating billing software, and taking over existing dental practices. In a particularly egregious case, billing for services at a Marseille center was partially attributed to a dentist who had died in 2021. Auditions of patients whose information was used in the fraudulent claims confirmed that many had never received the services billed to the CPAM, and in some cases, had never even visited the implicated dental centers.
Data Breaches and Organized Crime
The sophistication of the operation suggests a link to broader issues of data security and the illicit trade of personal information. Badinier indicated that the fraud is likely connected to recent large-scale data breaches, which provide criminals with access to the personal details needed to create fraudulent claims. “This case is probably linked to the numerous data breaches that have taken place in recent years, which allow fraudsters to buy personal data on the black market,” he explained.
The investigation revealed that the perpetrators utilized a “fleet of dedicated telephones” to open accounts, primarily originating from Neuilly-sur-Seine, a wealthy suburb of Paris. The billing amounts were consistently higher than average reimbursement rates, further raising red flags. The Office Central de Lutte Contre le Travail Illégal (OCLTI) – the Central Office for Combating Illegal Work – was alerted to the serial nature of the fraud by the Caisse Nationale d’Assurance Maladie (CNAM) on April 10, 2025.
Timeline of the Investigation
Here’s a brief timeline of key events in the investigation:
- March 2025: An anonymous letter alerts the Assurance Maladie to potential fraudulent activity.
- September 2025: The JIRS of Paris opens a preliminary investigation.
- December 23, 2025: An official judicial investigation is launched, granting investigators greater powers.
- April 10, 2025: The OCLTI is informed by the CNAM of the widespread fraud.
- March 26, 2026: Seven individuals are placed under formal investigation.
The scale of the fraud necessitated the creation of a “national task force” to coordinate investigations across the country. The Assurance Maladie was able to block approximately €16 million in fraudulent reimbursements before they were processed, demonstrating the effectiveness of the task force’s efforts.
Authorities are continuing to investigate the full extent of the network and identify all those involved. The JIRS of Paris has prioritized combating fraud against state aid and social benefits, and this case is considered a significant win in that effort. The investigation is ongoing, and further arrests are possible.
Disclaimer: This article provides information about an ongoing legal case. The individuals under investigation are presumed innocent until proven guilty in a court of law. This information is for general knowledge and informational purposes only, and does not constitute legal advice.
The CPAM de l’Aisne has announced it will release a statement on Friday regarding the investigation. As the investigation progresses, updates will be provided by the JIRS of Paris. We encourage readers to share this information and to report any suspected fraudulent activity to the appropriate authorities.
