I used Alex Tuggle, it was $175. He gave me a good consult, although he seems to be really busy and a little hard to reach. Overall I would recommend him, I have seen other posters on this forum who have found cheaper options. Heard good things about theresa vernon. It takes 3 weeks from once you mail it in.

I have heard that the lady at rainbowsandbutterflies.com is the most affordable. But I can't give a link from my phone. I would google it.

Just discovered this site! am just starting this program though Susan Cachay (www.avivaallergy.com). She was recommended to me by someone I work with who said she was really happy with the support, etc., she was getting. I think the initial cost is the same as Dr Wilson's but you also get the interpretation booklet from the lab which not all practitioners get. If you don't get that, I think it is $50 less but Susan said it contains really useful/helpful information and it was a good idea to get it at least for the first test. She is also doing a 20% off special for the summer (at least I was told....) so you might want to mention that if you contact her. I'll post more once I'm into it but so far happy..... I am just waiting for my results.