NUCC taxonomy code

163WL0100X - Lactation Consultant (Registered Nurse)

163WL0100X is the NUCC provider taxonomy code for Lactation Consultant (Registered Nurse), a specialization within Registered Nurse (individual providers). 4,530 providers in our latest NPPES snapshot list it as their primary taxonomy.

4,530 providers · primary taxonomy

Code breakdown

Taxonomy code 163WL0100X

Display name Lactation Consultant (Registered Nurse)

Grouping Nursing Service Providers

Classification Registered Nurse

Specialization Lactation Consultant

Section Individual

Directory Registered Nurse provider directory

Definition

Definition to come...

Definition from the NUCC Health Care Provider Taxonomy code set.

Related taxonomy codes

163W00000X Registered Nurse 163WA0400X Addiction (Substance Use Disorder) Registered Nurse (Registered Nurse) 163WA2000X Administrator Registered Nurse (Registered Nurse) 163WP2201X Ambulatory Care Registered Nurse (Registered Nurse) 163WC3500X Cardiac Rehabilitation Registered Nurse (Registered Nurse) 163WC0400X Case Management Registered Nurse (Registered Nurse) 163WC1400X College Health Registered Nurse (Registered Nurse) 163WC1500X Community Health Registered Nurse (Registered Nurse)

Frequently asked questions

What does taxonomy code 163WL0100X mean?

163WL0100X is the NUCC Health Care Provider Taxonomy code for Lactation Consultant (Registered Nurse), a specialization of Registered Nurse in the "Nursing Service Providers" grouping. It classifies 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 163WL0100X?

Browse the Registered Nurse directory, or use the NPI search and filter by state.

Source: CMS NPPES (public data). Snapshot 2026-07-13.