The place is called the Women's Medical Society.
At around 9:00 p.m., the time of the raid, the office on the 3800 block of Lancaster Avenue was full of patients.
A number of ambulances were called to the scene because some patients were under sedation or needed medical attention when police and FBI arrived.
They were transported to area hospitals.
Meanwhile, the FBI and DEA were questioning other patients and staff members.
The investigation, which is being called a major, ongoing one, is alleging illegal drug sales and fraudulent prescriptions took place at this location.
The Department of Health is also involved because the place is alleged to be a health hazard.
While a number of patients were innocent and had nothing to do with the alleged illegal activity, arrest warrants were issued for other patients and some of the medical staff.
Action News is told an arrest warrant is also out for the man who ran the facility.
