How are 1099 paid?

I will be taking a position as a 1099 through a national company- they will keep a percentage of my billings. Rudimentary question- who am I receiving my paycheck from, the national company or the insurance? Also, I'm looking into having a payroll service do self employment tax withholdings- they will file quarterly taxes as well. They can also set up automatic 401k deposits from each paycheck. Curious if anyone has had any experience with this as full time 1099?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: PM&R Source Type: forums