Police had two bomb sniffing dogs and several firefighters clearing the building of any threat.
The original threat came in just before 11:00 am at Family Health Care just north of Baldwin in Lake County.
About 50 people were evacuated, both employees and patients, and nobody was hurt.
Police secured banks and schools around the county in case the threat was used as a diversion for a different attack.
After about two hours of searching the threat turned up empty.
9&10's Eric Lloyd and photojournalist Jacob Johnson were there as police cleared the scene and have more details.