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Press Release

Sioux City Nurse Pleads Guilty to Stealing Controlled Substances from Hospital Employer

For Immediate Release
U.S. Attorney's Office, Northern District of Iowa
Miralles stole pain medications prescribed for patients.

A Sioux City, Iowa nurse who stole fentanyl, morphine, hydromorphone, and hydrocodone from her employer, pled guilty on August 30, 2023, in federal court in Sioux City. 

Morgan Miralles, age 32, from Sioux City, Iowa, entered a guilty plea to one count of acquiring a controlled substance by means of misrepresentation, fraud, deception and subterfuge, and one count of false statements relating to health care matters.

In a plea agreement, Miralles admitted that she diverted the controlled substances that were supposed to be dispensed to patients, for her own personal use by falsifying documents, including the omission of information on required log entries tracking the disbursement of controlled substances.

Sentencing before United States District Court Chief Judge Leonard T. Strand will be set after a presentence investigation report is prepared.  Miralles remains free on bond pending sentencing.  Miralles faces a possible maximum sentence of 5 years’ imprisonment, a $250,000 fine, and a year of supervised release following any imprisonment.

The case is being prosecuted by Assistant United States Attorney Ron Timmons and was investigated by the Iowa Department of Inspections & Appeals, Medicaid Fraud Control Unit, the Department of Health and Human Services, and the Drug Enforcement Administration.

Court file information at

The case file number is 23-4049.

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Updated August 31, 2023

Prescription Drugs