D.
I have been going to Arapahoe Park Pediatrics for almost five years now, I have a four and a half year old boy and sixteen month old girl. They have quite a few good doctors, and offices in the Littleton Hospital complex and off of Quebec and C-470.
The doctor we like best is Nancy McKenzie - VERY excellent doctor who takes the time to talk with you and the kids, and quickly becomes someone you can trust. Although they seem to have quite a following, I don't have problems making appointments, and can usually get in the same day I call if it's something important.
Office phone number is ###-###-####.