From what I read, the story and claims about the OK hospitals could not be substantiated.
UPDATE: here’s the statement from a third Oklahoma hospital concerning the doctor’s claims over ivermectin overdoses.
“Integris admitted Jason McElyea, D.O., is an employee of an agency that staffs emergency departments through the United States. The statement said he has privileges at Integris Grove Hospital.”
"’There is a lot of media attention surrounding remarks reportedly made by Dr. McElyea. While we do not speak on his behalf, he has publicly said his comments were misconstrued and taken out of context,’ the statement from Integris went on to read.”
“Integris said they can confirm the hospital has seen a handful of Ivermectin patients in its emergency rooms, including at Integris Grove.”
"’And while our hospitals are not filled with people who have taken ivermectin,’ the statement reads, ‘such patients are adding to the congestion already caused by COVID-19 and other emergencies.’"
https://okcfox.com/news/local/two-oklahoma-hospitals-differ-on-doctors-claims-over-ivermectin-overdosesHere’s McElyea’s clarification:
“The doctor at the center of the story told News 9 he was misquoted, and the story was wrong. ‘That original story was just a little misquoted,’ Dr. Jason McElyea told News 9 Friday.”
“’As the story ran, it sounded like all of Oklahoma hospitals were filled with people who have overdosed on ivermectin and that’s not the case,’ McElyea said. ‘The cases we are seeing, people who are overdosing on ivermectin, they are taking full strength cattle doses and coming in and that is something that could be avoided.’”
https://www.newson6.com/story/6136ad349daa7c0c0b36d064/oklahoma-doctor-at-center-of-viral-ivermectin-story-says-report-is-wrong