Understanding Physician Assistants and Nurse Practitioners

Physician assistants (PAs) and nurse practitioners (NPs) are advanced practice providers who play an increasingly important role in the U.S. healthcare system. Both can diagnose conditions, prescribe medications, and manage patient care — though the scope of their independent practice varies by state.

Nurse Practitioners

NPs are registered nurses who have completed advanced graduate education (MSN or DNP) with a specialty focus — family practice, psychiatric-mental health, women's health, pediatrics, or acute care, among others. In full-practice states, NPs can operate independently without physician oversight. NPs have their own NPI numbers and appear throughout the DoctorDataHub search with the "NP" credential.

Physician Assistants

PAs complete a master's-level PA program that includes clinical rotations across multiple specialties. Unlike NPs (who choose a specialty during training), PAs are trained as generalists and can work in virtually any specialty under physician supervision. They are licensed in all 50 states and have their own NPI records. Look for the "PA" or "PA-C" credential in DoctorDataHub profiles.

Scope of Practice Differences

The practical difference between NPs and PAs often depends on state law and practice setting more than the credential itself. In states with full practice authority for NPs, an NP in primary care may practice identically to a family physician. Use the search page to find PAs and NPs in your area alongside physician results.