Mothers of R/Denver: I am moving to Denver in August when I am 32 weeks pregnant. Can anyone recommend a doctor off of my list?

I just recently moved home to the US after living abroad for 2 years. I am currently in Indiana but I am moving to be with the baby's father as soon as he returns to the US in August. We are not married so I will be seeking medicaid for the pregnancy. This is my first child and I am extremely overwhelmed. Any advice? Here is the list of Doctors.
[Colorado HCPF](https://sp0.hcpf.state.co.us/mercury

EDIT: sorry the link refuses to load. You would have to start from [here] (https://sp0.hcpf.state.co.us/mercury/ProviderSpecialtyLookupCriteria.aspx) and thats a bit of extra work. I really do appreciate any advice you have about dealing with the high altitudes!

Has anyone taken the amtrak in from the Chicago direction? Im concerned about the altitudes the train might go through. Is that a realistic concern? /ProviderSpecialtyLookupCriteria.aspx)