Common Terms & Acronyms

Common Terms and Acronyms

National Defense Authorization Act (NDAA)

Formally establishes and funds TRICARE in public law.

National Drug Code (NDC)

A universal product identifier for human drugs. Visit the Food and Drug Administration's NDC page for more information.

National Guard (NG)

A military force recruited by each state of the United States.

National Oceanic and Atmospheric Administration (NOAA)

A federal agency focused on the condition of the oceans and the atmosphere; NOAA is one of the seven uniformed services of the United States.

National Provider Identifier (NPI)

A standard unique identifier for health care providers.

National Quality Monitoring Contractor (NQMC)

Helps the Department of Defense Health Affairs with an independent, impartial evaluation of care provided to TRICARE beneficiairies.

Network Provider

A civilian provider who has completed the credentialing process and signed a contracted agreement to be part of the "network" of providers who participate in the TRICARE program. A network provider accepts the negotiated rate as payment in full for services rendered.

Non-Network Provider

A provider who is authorized to provide care to TRICARE beneficiaries, but has not signed a network agreement. Non-network providers meet TRICARE licensing and certification requirements, and are certified by TRICARE to provide care to TRICARE beneficiaries. There are two types of non-network providers – participating and nonparticipating.

Nonparticipating Provider

An authorized hospital, institutional provider, physician, or other provider that furnishes medical services (or supplies) to TRICARE beneficiaries, but has not signed an agreement and does not agree to accept assignment. A nonparticipating provider may balance bill up to 115 percent of the TRICARE allowable charge.

North Atlantic Treaty Organization (NATO) Member

A member of a foreign NATO nation's armed forces who is on active duty and stationed in or passing through the United States in connection with official duties.