The employee is well enough to do the job–do we have to grant intermittent FMLA leave?

Q: “Can we refuse a request for FMLA intermittent leave for a serious health condition when the physician has checked the box indicating that there is no part of that employee’s job that the employee is not able to perform? We included a copy of the job description with the FMLA paperwork we provided.” – Kary, Maryland