- NCPDP
- NUBC EDI Technical Advisory Group (NUBC EDI TAG)
- National Association for Medical Equipment Services (NAMES)
- National Association of Health Data Organizations (NAHDO)
- National Association of Insurance Commissioners (NAIC)
- National Association of State Medicaid Directors (NASMD)
- National Center for Health Statistics (NCHS)
- National Committee for Quality Assurance (NCQA)
- National Committee on Vital and Health Statistics (NCVHS)
- National Council for Prescription Drug Programs (NCPDP)
- National Drug Code (NDC)
- National Employer ID
- National Health Information Infrastructure (NHII)
- National Individual Identifier (NII)
- National Provider File (NPF)
- National Standard Format (NSF)
- National Uniform Billing Committee (NUBC)
- National Uniform Claim Committee (NUCC)
- North Carolina Healthcare Information and Communications Alliance (NCHICA)
- Notice of Intent (NOI)
- Notice of Privacy Practices
- Notice of Proposed Rulemaking (NPRM)