In a major overhaul, the U.S. Department of Health and Human Services will lay off 10,000 workers and shut down entire agencies, including ones that oversee billions of dollars in funds for addiction services and community health centers across the country.

The U.S. Department of Health and Human Services announced Thursday it is cutting 10,000 full-time employees across health agencies, the department told CNN. This comes on top of 10,000 employees who’ve left voluntarily, amounting to shrinking by about a quarter of the workforce.

Health Secretary Robert F. Kennedy Jr. criticized the department he oversees as an inefficient “sprawling bureaucracy” in a video announcing the restructuring Thursday. He faulted the department’s 82,