NPs can specialize in various fields to cater to specific patient populations or health conditions. Some of the common specializations include: - Family Nurse Practitioner (FNP) - Pediatric Nurse Practitioner (PNP) - Psychiatric-Mental Health Nurse Practitioner (PMHNP) - Adult-Gerontology Nurse Practitioner (AGNP) - Womenâs Health Nurse Practitioner (WHNP) - Acute Care Nurse Practitioner (ACNP)