My provider has started a group practice where she is the only psychologist but will have other therapists on board. She is bringing on a LFT part time who will be an independent contractor which basically she will work 2 days out of that week in that practice and the other days on her own. She would like to know " whether she can be an independent contractor in a "group practice." And whether our corporate EIN # really covers her". I have applied for a group NPI number for her which they have received and the group EIN they acquired last year". I guess she wants to know for billing purposes can the LFT use the group NPI# and her regular NPI# on off days.