Question:
IN A MEDICAL OFFICE- DO THE PAPERS FOR A FAMILY MEMBER NEED OUT BY THE PHYSICIAN THAT CARES FOR THE ILL PATIENT OR SHOULD THEY BE FILLED OUT BY THE PHYSICIAN OF THE CARETAKER

Response:

The Department of Labor addresses this question in section 825.306 paragraph a

“(a) DOL has developed an optional form (Form WH-380, as revised) for
employees’ (or their family members’) use in obtaining medical
certification, including second and third opinions, from health care
providers that meets FMLA’s certification requirements. (See Appendix B
to these regulations.) This optional form reflects certification
requirements so as to permit the health care provider to furnish
appropriate medical information within his or her knowledge.”

Which would indicate that the certificate would be that of the family member who is sick.
You can read the whole code here:
http://www.dol.gov/dol/allcfr/ESA/Title_29/Part_825/29CFR825.306.htm