347D00000X — Train
347D00000X is the NUCC provider taxonomy code for Train (organizations). 9 providers in our latest NPPES snapshot list it as their primary taxonomy.
| Taxonomy code | 347D00000X |
|---|---|
| Display name | Train |
| Grouping | Transportation Services |
| Classification | Train |
| Section | Non-Individual |
| Directory | Train provider directory |
Definition
An organization or business licensed to provide passenger train service, including light rail, subway, and traditional services.
Definition from the NUCC Health Care Provider Taxonomy code set.
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Related taxonomy codes
- 344800000X — Air Carrier
- 341600000X — Ambulance
- 3416A0800X — Air Ambulance (Ambulance)
- 3416L0300X — Land Ambulance (Ambulance)
- 3416S0300X — Water Ambulance (Ambulance)
- 347B00000X — Bus
- 341800000X — Military/U.S. Coast Guard Transport
- 3418M1120X — Military or U.S. Coast Guard Air Transport Ambulance (Military/U.S. Coast Guard Transport)
Frequently asked questions
What does taxonomy code 347D00000X mean?
347D00000X is the NUCC Health Care Provider Taxonomy code for Train in the "Transportation Services" grouping. It classifies organizations and non-individual providers.
Where is the taxonomy code used?
Providers select a taxonomy code when applying for an NPI, and it appears on insurance claims (CMS-1500 box 33b / 837 electronic claims) to identify the provider's classification. Payers may require the taxonomy that matches your credential and license.
How do I find providers with taxonomy 347D00000X?
Browse the Train directory, or use the NPI search and filter by state.
Source: CMS NPPES (public data). Snapshot 2026-07-09.