We used to go to Dr. Nina's pediatrics (her full name is Yanina Abaunza-Fiallos if you want to look her up on your insurance) on Dale Mabry in Lutz. I think that she has a partner now, who I've never met, but she is still a small pediatrics office (not one of those big groups with so many doctors that you never get to see your own). We don't go there anymore because it got to be just too far for me to drive (we live near Wesley Chapel High school).
Now we go to Dr. Surti, who I guess is technically in Lutz as well even though he is much closer to our home (on SR 54 near Gymboree). He has a partner (Dr. Morales, I believe) who I also really like, but it's also the same small practice feel. Dr. Surti is really good about being able to get you in the same day if your child is sick (which is something that I sometimes had a problem with with Dr. Nina), and not just to see his partner but to see him.
Good luck finding a doctor! I know that it can be stressful :)