Pulmonary Diagnostics Registered Respiratory Therapist: NPI taxonomy code 2279P1004X
Taxonomy code 2279P1004X is Respiratory Therapist, Registered: Pulmonary Diagnostics, in the Respiratory, Developmental, Rehabilitative and Restorative Service Providers group.
85 active NPIs list it as their primary specialty (<0.1% of all).
| Code | 2279P1004X |
|---|---|
| Group | Respiratory, Developmental, Rehabilitative and Restorative Service Providers |
| Classification | Respiratory Therapist, Registered |
| Specialization | Pulmonary Diagnostics |
| Used for | individual providers (the code is in NUCC's Individual section) |
| Active NPIs, primary specialty | 85 (62 individuals, 23 organizations) |
What NUCC says: Included in the area of pulmonary diagnostics are the following; collection and analysis of physiological specimens, interpretation of physiological data, administration of tests of the cardiopulmonary system, and the conduct of both neurophysiological and sleep disorders studies. (excerpt of the NUCC 26.1 definition)
Find Pulmonary Diagnostics Registered Respiratory Therapist providers
Search the registry for providers listing Pulmonary Diagnostics. Pick a state to narrow it down.
Where they are
| State | Active NPIs | Share |
|---|---|---|
| California | 16 | 18.8% |
| Florida | 11 | 12.9% |
| Texas | 7 | 8.2% |
| Ohio | 6 | 7.1% |
| Nevada | 5 | 5.9% |
| Virginia | 4 | 4.7% |
| Alabama | 4 | 4.7% |
| Washington | 4 | 4.7% |
| New Mexico | 3 | 3.5% |
| Colorado | 3 | 3.5% |
Top states by practice location, from the NPPES file of September 13, 2026.
Related specialties
- Registered Respiratory Therapist 4,514
- Critical Care Registered Respiratory Therapist 525
- General Care Registered Respiratory Therapist 435
- Home Health Registered Respiratory Therapist 196
- Neonatal/Pediatric Registered Respiratory Therapist 193
- Pulmonary Rehabilitation Registered Respiratory Therapist 118
- Pulmonary Function Technologist Registered Respiratory Therapist 104
- Educational Registered Respiratory Therapist 77
Specialty definitions are from the NUCC Health Care Provider Taxonomy (version 26.1). Which code to use on a claim depends on your NPPES record and your payer. See taxonomy codes explained.