Registered Respiratory Therapist providers in the U.S.
4,388 NPPES records list registered respiratory therapist as their primary taxonomy, about 1.3 per 100,000 residents; Wyoming and South Dakota have the most per resident. 1 of them appear in the Medicare Part D prescriber file: a registry record is not proof of an active practice.
What taxonomy code 227900000X means
227900000X is the National Uniform Claim Committee code for Respiratory Therapist, Registered, in the grouping Respiratory, Developmental, Rehabilitative and Restorative Service Providers. 4,388 NPPES records list it as their primary taxonomy (file of Aug 9, 2026).
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.
Source: NUCC Health Care Provider Taxonomy code set, definition as NUCC publishes it (nucc.org); counts from CMS NPPES.
Most per resident: the 8 highest
Source: CMS NPPES, primary taxonomy 227900000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.
Los Angeles has the most, 200
Source: CMS NPPES, primary taxonomy 227900000X by practice city, file of Aug 9, 2026.
All 51 by state
| State | Records | Per 100,000 |
|---|---|---|
| Alabama | 27 | 0.5 |
| Alaska | 24 | 3.3 |
| Arizona | 194 | 2.6 |
| Arkansas | 56 | 1.8 |
| California | 1,082 | 2.8 |
| Colorado | 50 | 0.9 |
| Connecticut | 13 | 0.4 |
| Delaware | 9 | 0.9 |
| District of Columbia | 17 | 2.5 |
| Florida | 582 | 2.6 |
| Georgia | 99 | 0.9 |
| Hawaii | 5 | 0.3 |
| Idaho | 18 | 0.9 |
| Illinois | 60 | 0.5 |
| Indiana | 42 | 0.6 |
| Iowa | 35 | 1.1 |
| Kansas | 36 | 1.2 |
| Kentucky | 39 | 0.9 |
| Louisiana | 32 | 0.7 |
| Maine | 20 | 1.4 |
| Maryland | 25 | 0.4 |
| Massachusetts | 32 | 0.5 |
| Michigan | 110 | 1.1 |
| Minnesota | 55 | 1.0 |
| Mississippi | 41 | 1.4 |
| Missouri | 77 | 1.2 |
| State | Records | Per 100,000 |
|---|---|---|
| Montana | 12 | 1.1 |
| Nebraska | 30 | 1.5 |
| Nevada | 61 | 1.9 |
| New Hampshire | 9 | 0.6 |
| New Jersey | 54 | 0.6 |
| New Mexico | 43 | 2.0 |
| New York | 98 | 0.5 |
| North Carolina | 171 | 1.6 |
| North Dakota | 22 | 2.8 |
| Ohio | 126 | 1.1 |
| Oklahoma | 23 | 0.6 |
| Oregon | 53 | 1.3 |
| Pennsylvania | 62 | 0.5 |
| Rhode Island | 5 | 0.5 |
| South Carolina | 61 | 1.1 |
| South Dakota | 38 | 4.1 |
| Tennessee | 140 | 2.0 |
| Texas | 212 | 0.7 |
| Utah | 12 | 0.4 |
| Vermont | 8 | 1.2 |
| Virginia | 63 | 0.7 |
| Washington | 183 | 2.3 |
| West Virginia | 28 | 1.6 |
| Wisconsin | 54 | 0.9 |
| Wyoming | 26 | 4.5 |
In federal data
- NUCC code227900000X · Respiratory Therapist, Registered
- Size rank142nd of 688 specialties by records (0.06% of all)
- In its family1st of 14 Respiratory Therapist, Registered codes, 72.1% of the family
- Part D prescribers1 (under 0.1% of records)
- Part D claims20 a year per prescriber, on average (468th of 496)
- Concentration5 states hold half of all records
Source: CMS NPPES; Medicare Part D Prescriber PUF; CMS Open Payments 2024. Presence in these files is not a quality judgment.
A sample of registered respiratory therapist records
- Tanya Ginter, RRT-SDS, RPSGT(I)Anchorage, AK1831405034
- Casey Broome, RRTAnchorage, AK1437857570
- Mark Nunley, RRTAnchorage, AK1104091347
- Pamala Lambert, RRTAnchorage, AK1730432436
- Jackie Bonde, RRTAnchorage, AK1275656654
- Kimberly Pitts, RRT-NPS, RPSGTAnchorage, AK1780830877
- Elizabeth McKay, RRTAnchorage, AK1003147125
- Leslie Dietz-Lindner, RRT/CPFTEagle River, AK1093091043
- Mikel Kuhn, RRTHomer, AK1861138018
- Kevin McCormick, RRTKenai, AK1144522665
- Maddison CarrollWasilla, AK1083087092
- Keith Eckerman, RRTSoldotna, AK1831407188
- Gary Couveau, RRTSoldotna, AK1629388186
- Malcolm RogersSoldotna, AK1932404001
- Noah Gunn, RRTSoldotna, AK1508299074
- Jason Larson, RRTSoldotna, AK1750718813
Registry order, not a ranking. Search by name to find one provider.
Common questions
Where does the large Registered Respiratory Therapist headcount concentrate?
4,388 Registered Respiratory Therapist NPIs span 54 states; California alone holds 1,082. Top metros include Los Angeles, CA; Seattle, WA; Tucson, AZ; San Diego, CA. Nationally this is 142nd of 688 NUCC codes.
Where can I find a Registered Respiratory Therapist provider?
Registered Respiratory Therapist providers are listed in 54 states; Los Angeles leads by raw city count. By national headcount this code sits just above Critical Care Medicine Registered Nurse and just below Chore Provider. Browse by state or search by name.
How heavy is Registered Respiratory Therapist Part D prescribing at scale?
Among Registered Respiratory Therapist NPIs, 1 appear in the Medicare Part D Prescriber PUF (average 20 claims and $151 drug cost per prescriber; 468th of 496 specialties by average claims). Non-prescribing clinicians in the same NUCC code are still in NPPES.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy (nucc.org); Medicare Part D Prescriber PUF; CMS Open Payments 2024. Counts are self-designated primary taxonomy, not board certification.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.