NUCC taxonomy code
227900000X - Registered Respiratory Therapist
227900000X is the NUCC provider taxonomy code for Registered Respiratory Therapist (individual providers). 4,457 providers in our latest NPPES snapshot list it as their primary taxonomy.
Code breakdown
Definition
A Registered Respiratory Therapist (RRT) is an advanced therapist who has passed standardized written and clinical simulation examinations administered by the National Board for Respiratory Care (NBRC). In addition, to the certified therapist (CRT) entry level skills, RRTs have advanced education and training in patient assessment, in the development and modification of patient care plans, and in assuring the appropriate utilization of respiratory care resources. An RRT is a graduate of an associate or baccalaureate degree producing educational programs approved by the Commission on Accreditation of Allied Health Education Programs (CAAHEP) and where applicable, is licensed by the state and is practicing within the scope of that license.
Definition from the NUCC Health Care Provider Taxonomy code set.
Related taxonomy codes
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-13.