Transportation Services / 344800000X
Non-Individual · classification
344800000X Air Carrier
344800000X is the taxonomy code for Air Carrier, in the NUCC group “Transportation Services”. It is a code for organizations — the kind used on a Type 2 NPI. It has no entry in the CMS Medicare taxonomy crosswalk.
- 1Taxonomy code 344800000X
- 2Level Classification
- 3Medicare specialty Not in the crosswalk
- 4Codes in this group 17
Definition
An air company that the Federal Aviation Administration, the certificate-holding district office (CHDO), regional Flight Standards Division (RFSD) offices, and AFS-900 has verified that the company is capable of operating safely and that it complies with the regulations and standards prescribed by the Administrator.
— NUCC Health Care Provider Taxonomy, version 26.1
Where 344800000X sits
- Group: Transportation Services — code 1 of 17 in the group
- Classification: Air Carrier 344800000X
Air Carrier has no specializations, so 344800000X is the only code for it. A provider may report more than one taxonomy code on an NPI but marks one as primary.
Medicare
344800000X has no entry in the CMS Medicare Provider and Supplier Taxonomy Crosswalk. That usually means Medicare does not enroll this kind of provider under its own specialty — organizations of this type enroll, if at all, under a facility or supplier type rather than a practitioner specialty.
Related codes
No other codes share the classification Air Carrier. The rest of Transportation Services is on the group page.
History of 344800000X
344800000X was added to the code set in 2010.
- 2010-01-01 — new
Find providers with 344800000X
Using 344800000X
The code goes in the taxonomy field of the NPI application in NPPES, and on claims where a payer asks for it — box 24J (shaded) or 33b on the CMS-1500 with the ZZ qualifier, or the PRV segment of an 837 electronic claim. Payers match it against the taxonomy on the NPI record and, for Medicare, against the specialty on the enrollment, so all three should agree. To see which code a provider uses, search their NPI in the lookup.
Sources: NUCC Health Care Provider Taxonomy code set, version 26.1 (CSV). Checked 2026-10-24. Methodology.