Last Thursday, a former Chula Vista teacher stood in a federal courtroom and admitted she helped run what prosecutors describe as a nationwide Medicare scam built on fake medical equipment prescriptions and shell companies. Jeanett Valenzuela Ayub, 51, pleaded guilty to a money laundering conspiracy charge and acknowledged that she operated several durable medical equipment businesses that pumped out bogus bills to Medicare.
Prosecutors say Valenzuela and her co-conspirators submitted nearly $51 million in fraudulent claims and were paid about $20 million, then pushed at least $14 million through a web of accounts while peeling off roughly $3.7 million in illegal kickbacks, according to the U.S. Attorney's Office for the Southern District of California. The durable medical equipment at the center of the scheme included orthotic braces for backs, wrists and knees that, in many cases, Medicare beneficiaries allegedly never even used. The plea is recorded in federal court under case number 24cr2489 DMS.
How Investigators Say The Scheme Worked
According to investigators, Valenzuela's companies paid sham marketing outfits to obtain prescriptions that were little more than paperwork exercises, often signed by physicians who had no real doctor-patient relationship with the people listed. Many Medicare beneficiaries later told agents they were never examined and still had the braces sitting in unopened boxes.
When regulators suspended some of the billing companies, prosecutors say the defendants simply formed new “nominee” businesses to keep the money flowing. Those entities were allegedly used to hide who was really in charge and to obscure how Medicare dollars were being moved around.
FBI San Diego Flagged The Case
FBI San Diego highlighted the case on X, noting that Valenzuela's guilty plea followed a joint investigation by FBI San Diego and the HHS Office of Inspector General. In that post, agents pointed out that she admitted conspiring to launder millions of dollars in health care fraud proceeds and linked to the federal court filings and the U.S. Attorney's summary of the plea, according to FBI San Diego.
As a result of an #FBISanDiego and @OIGatHHS investigation, former teacher Jeanett Valenzuela Ayub admitted she conspired with others to launder millions of dollars of health care fraud proceeds, including operating multiple durable medical equipment companies to submit… pic.twitter.com/4sompGVoSU
— FBI San Diego (@FBISanDiego) April 23, 2026
Legal Consequences And Timeline
Valenzuela's money laundering conspiracy count carries a maximum possible sentence of 20 years in prison and a $500,000 fine. A judge has set her sentencing for July 24. Prosecutors say that after her brother was arrested in connection with the broader investigation, Valenzuela fled to Tijuana and remained out of reach until August 2025, when she was detained in the Dominican Republic. She was then removed to the United States through Miami and taken into custody by U.S. Marshals, according to the U.S. Attorney's Office.
Broader Enforcement Context
Federal officials say this case is part of a much larger push to crack down on health care fraud schemes that quietly bleed public programs. Coordinated enforcement actions in 2025 charged hundreds of defendants nationwide and targeted billions of dollars in alleged false billing involving Medicare and other programs, as reported by CMS. Local prosecutors argue that the Valenzuela case underscores how quickly durable medical equipment scams can add up, the risks they pose to Medicare beneficiaries and the need for tight oversight of companies that bill the program for medical gear.
