Registered Nurse First Assistant: NPI taxonomy code 163WR0006X
Taxonomy code 163WR0006X is Registered Nurse: Registered Nurse First Assistant, in the Nursing Service Providers group.
3,007 active NPIs list it as their primary specialty (<0.1% of all).
| Code | 163WR0006X |
|---|---|
| Group | Nursing Service Providers |
| Classification | Registered Nurse |
| Specialization | Registered Nurse First Assistant |
| Used for | individual providers (the code is in NUCC's Individual section) |
| Active NPIs, primary specialty | 3,007 (2,562 individuals, 445 organizations) |
What NUCC says: A perioperative registered nurse who works in collaboration with the surgeon and other health care team members to achieve optimal outcomes. The RNFA has acquired the necessary knowledge, judgment, and skills specific to the expanded role of RNFA clinical practice. (excerpt of the NUCC 26.1 definition)
Find Registered Nurse First Assistant providers
Search the registry for providers listing Registered Nurse First Assistant. Pick a state to narrow it down.
Where they are
| State | Active NPIs | Share |
|---|---|---|
| Texas | 437 | 14.5% |
| California | 323 | 10.7% |
| New Jersey | 277 | 9.2% |
| Florida | 259 | 8.6% |
| New York | 133 | 4.4% |
| Washington | 133 | 4.4% |
| Georgia | 129 | 4.3% |
| Arizona | 126 | 4.2% |
| Missouri | 120 | 4.0% |
| Oregon | 101 | 3.4% |
Top states by practice location, from the NPPES file of September 13, 2026.
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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.