J.K.
I use Dr. Judith Hsu from North Texas OBGYN. She's absolutely amazing. She will sit and answer any question you may have without making you feel rushed. Any and every question is important to her and it's not too big or too small. She always caters to the needs of her patients and the entire staff is so helpful and welcoming. Her home hospital is Medical Center of Plano on Coit & 15th Street in Plano...which is just about 15 minutes from Frisco. Here is her practice info: http://www.ntxobgyn.com/
The pediatrician we use is Dr. Chad Guetersloh of Centennial Pediatrics. he recently moved his practice to east Frisco right off of 121 & Independence. He's wonderful with my children and very helping and sympathetic to my needs. He's supportive with my parenting style and if he's unavailable for some reason (which is very rare) there's always a doctor in the practice to represent him. I have used him for 7 years and highly recommend him. Here's his info as well: http://www.centennialpediatrics.net/index.html
Hope this helps! Good Luck!