Slater worked as a vendor of medical supplies and had access to operating rooms, according to police.
Fairfax County Police said they launched an investigation after a medical supplier in Florida found some kits on eBay and checked the serial numbers. That showed the equipment was registered to Inova in Alexandria.
Police found that seven medical kits, each valued at $33,000, had been stolen. Officials said detectives found six of the kits that had been sold in states including Florida, New Jersey, Pennsylvania and Washington. Police said none of the customers knew the items were stolen when they bought them.
Slater surrendered to police on Wednesday and faced charges of grand larceny, money laundering and other charges, according to police. He was released on bond.