K.
I would highly recommend Arapahoe Park Pediatrics. Specifically Dr. Nancy McKenzie or Dr. James DeMahy. I take my kids to Dr. McKenzie, but also know the other dr. through work (I am a mom/baby RN at a local hospital). All of the drs. in this group are great. They have an office close to 470 and Quebec and one at Littleton Adventist Hospital (Broadway and Mineral). Their # is ###-###-####. I never have problems getting my kids in.
K.