@karhma34 , @teb , this link discussed bone marker ctx/p1np lab with self pay:
https://connect.mayoclinic.org/discussion/self-pay-for-ctx-p1np/
It might be a bit cheaper than ulta lab.

You can also ask any other doctors whom you see to place the lab order. My insurance paid the labs regardless who ordered it, FYI. I understand insurance policy may differ.

Stay with same place for bone marker testing could be important (Quest, or Labcorp) since different types of assays used by different places could make results non-comparable.