My Mother has a Nephrologist, but they want us to give up Hospice, or they will not reorder her supplies. Hospice does not have a problem with her doing pd, So why should her pd nurse? Plus medicare & medicaid said they will still pay for her supplies and Drs.involved with her pd, and Hospice.
So I would like to know if her PCP can order her supplies?

No!!!! The only place that can order supplies is a place that is registered and certified by your State as a PD unit...Sounds like there is some miscommunication between Dr and his PD RN. I would call your DR (Nephrologist) and or have them Paged.