After he mentioned surgery, I asked if therapy to try to push everything back into alignment was a possibility and he said, "no, that doesn't work."

Oh, cr@p!
Then what is it I'm doing 8 hours a day, 5 days a week, that makes people with disc herniations completely healed and discharged after an average of 6 visits?

You already found a McKenzie therapist, but here's our website: http://www.mckenziemdt.org/index_us.cfm