Yes. Even a daily phone call is acceptable.
The 8th Circuit Court of Appeals ruled that an employer can mandate daily check-in calls for an employee who's on FMLA Leave.
I'm not sure that it's necessary to mandate 'daily' call-ins, but frequent check-ins are a good idea. But make sure that policy is in your employee handbook - and enforce it consistently.
Thanks to Maria Greco Danaher of Ogletree Deakins.