I knew nothing about Dr. Parpia. But looking at her bio, she has trained with some good people and works at the Gordon Clinic.
As for Bastyr, I've been helped by some excellent Bastyr trained naturopathic doctors. Bastyr University is based in Seattle, WA and has a branch in the San Diego area. Their curriculum is based in evidence based science. The doctors I've known have been well versed in pharmaceuticals, nutrients, botanicals and other modalities, like ozone.
Jill Carnahan is a reputable doctor.