DaVita said HHS' Office of the Inspector General is conducting an investigation into payments for infusion drugs that are covered by the Medicaid program in New York.

The Denver-based dialysis provider said it expects to receive a request for documents, which may include an administrative subpoena, from the HHS' office of the inspector general, according to an Oct. 25 news release.

The request is related to an inquiry from the U.S. Attorney’s Office for the Eastern District of New York. The company said it believes the inspector general’s request is a civil inquiry and that the time period for the inquiry is unknown. DaVita also disclosed that other dialysis providers that operate in New York may receive or have received similar requests for documents.

“We intend to work cooperatively in response to this inquiry and look forward to resolving the matter,” DaVita said in the news release.