When a claim is denied, you'll need to reach out to the payer directly to find out the denial reason. SimplePractice isn't able to help with denial reasons because Insurance Payers will not provide this information to SimplePractice.
When you contact the insurance company you will be asked for the Control Number or Payer Control Number. We include this in two places for you to reference. This is not the Reference Number.
When viewing the Denied Claim, the banner message will display the Control Number.
You can also click on the Payment Overview link next to the SimplePractice Reference Number. You will see the Control Number on this page.