What does ACNP stand for?

What does ACNP mean?

ACNP	Acute Care Nurse Practitioner Business » Positions
ACNP	American College of Nurse Practitioners Medical
ACNP	American College of Nurse Practitioners Business » Professional Organizations
ACNP	American College of Nuclear Physicians Business » Professional Organizations
ACNP	Asociación Católica Nacional de Propagandistas International » Spanish
ACNP	Audubon Center for Native Plants Academic & Science » Botany