A North Dakota medical spa owner has been taken into custody after authorities discovered she was operating without a valid medical license. The arrest followed an investigation into the practices at Royals Medical Spa in Watford City, owned by Kendra Cain.

Cain was apprehended on Sunday after the Watford City Police Department delved into her business activities. The McKenzie County Farmer, a local news source, reported that Cain was accused of lacking the necessary licensure to carry out the medical procedures she promoted. Crucially, police alleged that Cain used the license of one of her employees to arrange patient appointments, prescribe medications, and perform medical operations.

The investigation was reportedly prompted by a tip-off from a registered nurse, who raised concerns about Cain’s conduct. This led to increased scrutiny of the spa, which had its doors closed abruptly on January 22. Royals Medical Spa, which first opened in September 2025, quickly became the subject of several complaints that caught the attention of local law enforcement.

In their findings, the police asserted that Cain falsely presented herself as a licensed nurse, qualified to perform various medical procedures. However, records revealed no evidence of her holding any medical or nursing license. Cain’s actions allegedly extended to using a staff member’s credentials to execute tasks that legally required her own licensure.

Police said Cain was representing herself as a registered nurse with a license to perform a number of medical procedures. Investigators found, however, that there were no records of Cain holding any kind of medical license, including a nursing license. Cain allegedly used a staff member’s license to carry out a variety of tasks that required such documentation.

When police showed up at the med spa on Jan. 22 with a search warrant, they found a patient treatment area “containing a used IV bag, tubing, syringe, needle, bandage, and an open sharps container.” Police also saw “fresh blood” on the floor near the IV.

The next day, police spoke to the Royals patient who was also a nurse. She told police that while she was receiving treatment at the med spa, she had to “coach” Cain as she inserted an IV. The patient claimed that Cain allegedly left the tourniquet on her arm for too long, causing her hand to turn purple. She told police that while the IV was inserted, she observed air in the tube, which she noted could result in an air embolism that had the potential to cause fatal complications.

Police arrested Cain and charged her with reckless endangerment, unauthorized use of personal identifying information, deceptive writings, and practicing as a nurse without proper certification. After being booked into the McKenzie County Correctional Facility, she was released from custody. Her next court date is scheduled for March 26.