Respiratory Therapist, Registered Taxonomy Code 227900000X
227900000X
Level II - Classification
5,038Registered providers
26.0NUCC version
54States & territories
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.
Code Details for 227900000X
About Taxonomy Code 227900000X
The taxonomy code 227900000X identifies Respiratory Therapist, Registered within the Respiratory, Developmental, Rehabilitative And Restorative Service Providers provider grouping. It is a Level II — Classification code, which names a provider's occupation or service within the broader provider grouping.
NPI records show 5,038 registered providers whose primary or secondary taxonomy is this code. Of these, 231 (5%) are registered as organizations and 4,807 (95%) as individual providers. The states with the most respiratory therapist, registered providers are California (1,131), Florida (646), Texas (238).
Taxonomy codes are self-selected by the provider based on their education and training; they describe the provider's type and specialty, not the specific services rendered.
Provider Composition & Statistics
5,038Total providers
231Organizations 5%
4,807Individuals 95%
2,794Female
1,986Male
27Undisclosed
Gender is recorded for individual providers only; organizations are not gendered. Source: NPPES, last updated 2026-07-12T00:00:00.
View all 5,038 providersRespiratory Therapist, Registered Providers by State
Provider counts by U.S. state and territory. Select a state to open its provider directory.
All states (nationwide)
5,038
Alabama31Alaska30Arizona211Arkansas63California1,131Colorado65Connecticut17Delaware11District Of Columbia19Florida646Georgia114Hawaii5Idaho18Illinois46Indiana44Iowa33Kansas40Kentucky23Louisiana40Maine21Mariana Islands2Maryland37Massachusetts34Michigan105Minnesota48Mississippi43Missouri84Montana17Nebraska35Nevada72New Hampshire11New Jersey68New Mexico48New York123North Carolina182North Dakota23Ohio140Oklahoma17Oregon66Pennsylvania70Puerto Rico16Rhode Island9South Carolina65South Dakota35Tennessee145Texas238Utah15Vermont9Virgin Islands1Virginia82Washington203West Virginia29Wisconsin55Wyoming33
Frequently Asked Questions
227900000X questionsNPPES lists 5,038 registered providers with this taxonomy code (Respiratory Therapist, Registered).
Both. About 5% of these providers are registered as organizations and 95% as individuals.
This taxonomy code does not map to a Medicare specialty code in the current crosswalk.
It is a Level II - Classification code in the NUCC Health Care Provider Taxonomy set.
Use the "Providers by state" directory on this page to open the list of respiratory therapist, registered providers registered in any U.S. state.
Source: National Uniform Claim Committee (NUCC) Health Care Provider Taxonomy code set, Version 26.0. Provider counts from NPPES. See nucc.org.
