How did you land your utilization management/review jobs?

I’ve been a therapist for 6 years looking to get out of client facing roles. I’ve applied to 3 UM jobs with insurance companies and have been rejected each time. I only just started applying recently so I understand it will take time, but I’m desperately trying to get out of therapy and I’m not sure what they are looking for exactly or if it’s just a matter of continuously applying until I land something. None of the rejections offer any feedback so I’m not sure what I need to change about my resume/cover letter.

Any help would be appreciated.

Thank you