NUCC taxonomy code
310400000X - Assisted Living Facility
310400000X is the NUCC provider taxonomy code for Assisted Living Facility (organizations). 27,723 providers in our latest NPPES snapshot list it as their primary taxonomy.
27,723
providers · primary taxonomy
Code breakdown
Taxonomy code 310400000X
Display name Assisted Living Facility
Grouping Nursing & Custodial Care Facilities
Classification Assisted Living Facility
Section Non-Individual
Definition
A facility providing supportive services to individuals who can function independently in most areas of activity, but need assistance and/or monitoring to assure safety and well being.
Definition from the NUCC Health Care Provider Taxonomy code set.
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Related taxonomy codes
3104A0630X Assisted Living Facility (Behavioral Disturbances) (Assisted Living Facility) 3104A0625X Assisted Living Facility (Mental Illness) (Assisted Living Facility) 311500000X Alzheimer Center (Dementia Center) 317400000X Christian Science Facility 311Z00000X Custodial Care Facility 311ZA0620X Adult Care Home Facility (Custodial Care Facility) 315D00000X Inpatient Hospice 315P00000X Intellectual Disabilities Intermediate Care Facility
Frequently asked questions
What does taxonomy code 310400000X mean?
310400000X is the NUCC Health Care Provider Taxonomy code for Assisted Living Facility in the "Nursing & Custodial Care Facilities" 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 310400000X?
Browse the Assisted Living Facility directory, or use the NPI search and filter by state.
Source: CMS NPPES (public data). Snapshot 2026-07-13.