A nurse midwife is an advanced practice registered nurse who has specialized education and training in midwifery.n 2010 the first wave of certified nurse-midwives graduated from Doctor of Nursing Practice (DNP) programs. The American College of Nurse-Midwives (ACNM) estimates that soon, one in ten babies in the U.S. will be delivered by CNMs. In 2010 the first DNP program available for CNMs graduated its first class.