Like a lot of the PPs, I looked for a doctor who:
-Respects me, my choices, and my knowledge of my children (i.e. my doctor openly states that I, as the mom, know my children the very best and probably can guess what is going on with them better than she could ever, even as a trained doctor, at least is most cases)
-is aware of different parenting choices and open to different types of parenting choices including extended breastfeeding, cosleeping, baby wearing, early potty training, non-vax, no-circ etc.
-is very very very educated about nutrition-whole foods, real nutrition. My doc actually says vitamins are not necessary because we should instead focus on getting those things through food.
-is open to different vax schedules and is educated about WHY i might want a different or no vax schedule. My doc does not advocate any vax until 2 years old adn then only limited (she also nows how to go about getting exceptions for not vaxing for public and homeschooling :)
-is available to me and my child! My first ped did not answer his phone half the time and drove me crazy when I was a first time mom with a baby and had a million questions. My current doc is very good about squeezing us in for last minute appointments, though it generally ends up with the NP, and has been very supportive when I had a very sick kid at home-she and her colleague actually asked us to call them every couple hours through the middle of the night to keep them updated with our daughter's very high fever-they could have easily just told us to take her to the ER so they didn't have to deal with it.
-is educated/knowledgeable out herbal/homeopathic remedies, even if they do not use or promote them.
All that to say, we actually use a family doctor, but only because she met most of our wants and needs! The caveat is I drive 45 minutes to see her, which is tough when the kids are actually sick, and she has very very limited hours, so I often see the NP or another colleague when it is a last minute appointment.
My best advice would probably simply be to respect the parents and remember in most cases you are there to help and support the parent and child, not to force your viewpoint on them or make them do anything.