I met him in person. I saw him in 2020 before treatment as well. Dr. McCormick has suffered several fractures in the past so he is very understanding, as well as knowledgeable. I read his new book "Great Bones" cover to cover but can't say I retained most of it! It is great for reference. He asked me to get a P1NP blood test to see if my Tymlos is still working. My spine is pretty good now after 18 months of Tymlos but femur neck is still -3.6 (up from -4.1). So Dr. McC. thinks that I could do more Tymlos if it is still effective. My endo doesn't do blood markers so I met with my PCP and requested it.