Federal authorities are giving a Winnebago, Nebraska hospital less than three months to make corrections before they pull Medicare funding.
The Centers for Medicare and Medicaid Services gave Winnebago Indian Health Service Hospital a 14-page list of mandatory corrections on Monday.
A hospital official says CMS launched an investigation after patient complaints.
It warned the hospital in a May letter it could lose its Medicare funding if it failed to correct a series of alleged deficiencies.
The hospital official says the list includes equipment changes and modifications to staff training.
A hospital statement e-mailed to KSCJ says the facility is correcting the deficiencies and is continuing to provide services.
He says the hospital staff will discuss the changes next week.
Associated Press contributed to this story.