A Jacksonville chiropractor has been sentenced to a year and a day in federal prison for defrauding health insurance companies of more than a quarter of a million dollars.
Sean Rondeau, 56, of Jacksonville will be under three years of supervised release when his prison term is completed, and he will have to pay more than $268,000 in restitution.
Rondeau, who had offices in Jacksonville and White Hall, originally was indicted by a federal grand jury in June 2024. A grand jury issued a superseding indictment against him in August 2024.
He pleaded guilty in December 2025 to healthcare fraud, three counts of mail fraud and five counts of wire fraud.
During his sentencing hearing Wednesday in U.S. District Court in Springfield, prosecutors said Rondeau submitted more than 2,000 fraudulent claims. When he became aware the claims were being investigated, he convinced some of his clients to sign…
Identity theft is the “foundational” fraud upon which many other crimes are built. It involves the unauthorized acquisition and use of a person’s personal identifying information (PII), such as an ID number, Social Security number, or passport details.
- How it works: Fraudsters obtain PII through data breaches, mail theft, or “social engineering” (tricking people into revealing details). Once they have this data, they can open new bank accounts, apply for credit cards or loans, and even receive medical treatment under your name.
- Synthetic Identity Fraud: A sophisticated variation where criminals combine real and fabricated information to create a completely new, “synthetic” person. This is particularly difficult to detect because there is no single victim to report the suspicious activity initially.