Almost all direct entry midwives will take your calls with questions day or night. In states where direct entry midwives are illegal it is still possible to find qualified people. Many midwives in these states have gone to states where they can be certified in order to receive their certification. It is very important you make sure your midwife has had years of training. If she tells you she has been a midwife for a year move on.
Most women apprentice for years before they begin to practice on their own.
The last step is to talk to many providers. Most doctors and midwives will let you schedule an interview meeting for free. If they won t they probably are not what you are looking for to begin with. Ask them where you would deliver your baby. Tour the facilities.