More than one million individuals enrolled in ObamaCare plans lack Social Security Numbers, raising concerns about potential fraud within the program, Health and Human Services Secretary Robert F. Kennedy Jr. and Centers for Medicare & Medicaid Services Administrator Dr. Mehmet Oz announced on Saturday.

Kennedy described the situation as a “glaring warning sign for fraud,” attributing part of the problem to what he called weakened program integrity measures under the Biden administration. He criticized previous administrations, particularly under President Biden, for removing safeguards that were intended to prevent misuse in social safety net programs.

An estimated 19.2 million Americans are currently enrolled in ObamaCare exchange plans, a decline from approximately 23.4 million in 2025, according to the latest Health and Human Services data. Enhanced subsidies introduced by the Biden administration expired at the end of 2025, potentially contributing to shifts in enrollment.

While Kennedy and Oz did not specify how many of the enrollees without Social Security Numbers might be involved in fraudulent activity, they argued that existing verification systems should have flagged these irregularities. Dr. Oz claimed that some “rogue agents and other bad actors” have been registering individuals in plans they never requested, often using false identities to receive commissions for plans never legitimately sold.

These fraudulent enrollments reportedly often involve plans with no premiums, which may prevent individuals from realizing they have been signed up. Oz noted that some agents avoid following basic protocols, such as providing clients’ Social Security Numbers, which he identified as a major red flag. The extent of this behavior remains unclear.

Kennedy and Oz emphasized that the current administration maintains a strict stance against fraud. Kennedy stated that thousands of fraudulent enrollments have been eliminated and that efforts are underway to cancel improperly issued policies and recover taxpayer funds paid out under false pretenses.

Oz warned potential fraudsters, stating, “If you’re a fraudster, here’s our advice to you: do not walk away from us, run, because we are going to find you.” Both officials reaffirmed their commitment to protecting the integrity of healthcare spending and holding accountable those who exploit the system.