An Oklahoma doctor's license is suspended for unprofessional conduct, according to the state's medical board.Dr. Amy Darter has been the center of controversy for several months after suddenly closing the doors to the Institute of Allergy, Asthma, and Immunology. KOCO 5 initially reported the doors of the clinic were closed because of a cyber attack.Now, the medical board said they didn't have evidence of those claims, and it was time to take action.| MORE | Oklahoma Medical Board wants to hear from doctor at center of complaints about allergy clinic"There's a lot that went into the investigation," said Lyle Kelsey, the executive director of the Oklahoma Medical Board.After sifting through allegations of Darter, the board suspended her license in a hearing on Thursday."By the number of complaints that came in, it was obviously very suspect that some serious things were going on," Kelsey said.In May, KOCO 5 reported that Darter's patients were confused when they were greeted with signs on the door, claiming a cyber security attack forced the clinic to limit hours of operation. A month later, the doors were closed permanently, and during that time, Darter claimed she didn't have access to patient records."The more we got into it, the more we were concerned with not only the practice and patient care, but also concerned about her fitness of practice," Kelsey said.| MORE | Patients still left in the dark after Oklahoma allergy clinic closesThe board's investigators contacted the company in charge of her medical charts, who said her patient records weren't subject to any cyberattacks and were available to her at any time. Ultimately, the board decided to temporarily suspect her license."It is suspended for really no specific length of time, and during which if she elects to, to try to come back and reinstate her license, she needs to go through mental health evaluation, drug and alcohol evaluation–approved by the board's secretary," Kelsey said.KOCO 5 reached out to Darter's attorneys and they said they didn't have a comment at this time.Top HeadlinesSeveral people in critical condition after separate crashes across OklahomaPolitical leaders react to Rosalynn Carter's deathPolice arrest 2 after reported burglary leads to pursuit in northeast Oklahoma City2 dead, several teenagers injured after shooting in TulsaSooners, Cowboys both move up in AP Top 25 after weekend wins