National totals
| Active NPI records | 3,096 |
| Registered sole proprietors | 1,398 (45.2%) |
| NUCC taxonomy code | 163WR0006X |
| Grouping | Nursing Service Providers |
What this specialty covers
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. Intraoperatively, the RNFA assists the surgeon.
Reading the sole-proprietor share
For this specialty, 1,398 records, or 45.2%, are flagged as sole proprietors. That field is self-reported in NPPES, so it is an imperfect proxy for private practice and may not capture employment, affiliation, billing, or other organizational arrangements. It should be read as an NPI registration characteristic, not a definitive count of independently practicing RNFAs.
By state
| State | Active NPIs | Sole proprietors | Share |
|---|---|---|---|
| Texas | 445 | 215 | 48.3% |
| California | 317 | 210 | 66.2% |
| New Jersey | 276 | 165 | 59.8% |
| Florida | 271 | 127 | 46.9% |
| Georgia | 138 | 56 | 40.6% |
| New York | 137 | 35 | 25.5% |
| Arizona | 135 | 66 | 48.9% |
| Washington | 133 | 52 | 39.1% |
| Missouri | 120 | 44 | 36.7% |
| Illinois | 101 | 26 | 25.7% |
| Oregon | 97 | 51 | 52.6% |
| Colorado | 79 | 39 | 49.4% |
| Ohio | 75 | 28 | 37.3% |
| Pennsylvania | 59 | 22 | 37.3% |
| Mississippi | 58 | 12 | 20.7% |
| Louisiana | 57 | 27 | 47.4% |
| Maine | 54 | <11 | not reported |
| Nevada | 45 | 30 | 66.7% |
| Tennessee | 43 | <11 | not reported |
| Kentucky | 35 | 21 | 60.0% |
| Virginia | 34 | 12 | 35.3% |
| Indiana | 31 | <11 | not reported |
| Maryland | 28 | 15 | 53.6% |
| Wyoming | 28 | 11 | 39.3% |
| Alabama | 27 | <11 | not reported |
| Minnesota | 23 | <11 | not reported |
| Michigan | 23 | <11 | not reported |
| Oklahoma | 21 | <11 | not reported |
| North Carolina | 19 | <11 | not reported |
| Alaska | 18 | <11 | not reported |
| South Carolina | 15 | <11 | not reported |
| New Mexico | 15 | <11 | not reported |
| Wisconsin | 15 | <11 | not reported |
| West Virginia | 14 | <11 | not reported |
| Massachusetts | 12 | <11 | not reported |
| Iowa | 12 | <11 | not reported |
| Montana | 11 | <11 | not reported |
| Kansas | 11 | <11 | not reported |
New NPI registrations by year
| Year first enumerated | NPIs |
|---|---|
| 2016 | 136 |
| 2017 | 140 |
| 2018 | 120 |
| 2019 | 112 |
| 2020 | 98 |
| 2021 | 86 |
| 2022 | 68 |
| 2023 | 88 |
| 2024 | 108 |
| 2025 | 162 |
Counts reflect the year each NPI was first issued, among records still active today. The final year is partial: this data covers through 2026-01-11.
Data notes
- The sole-proprietor field is self-reported by the provider in NPPES and is an imperfect proxy for private practice.
- A sole-proprietor count shown as <11 is suppressed: the true value is below 11, which could include zero.
- - The primary-taxonomy count excludes providers who list Registered Nurse First Assistant only as a secondary classification.
- - An active NPI does not establish current clinical activity, workload, or full-time practice.
- Providers are counted once, by their primary taxonomy code only.
Common questions
How many Registered Nurse First Assistants are there in the US?
The dataset includes 3,096 active NPI records with Registered Nurse First Assistant as the primary taxonomy.
How many Registered Nurse First Assistants are in private practice?
NPPES flags 1,398 records, or 45.2%, as sole proprietors. This is an imperfect proxy for private practice because the field is self-reported and does not fully describe practice arrangements.
Which states have the most Registered Nurse First Assistants?
The largest state counts are in Texas (445), California (317), New Jersey (276), Florida (271), and Georgia (138).
Does the NPI total equal the number of RNFAs working in the US?
No. It counts active NPI records whose primary taxonomy is Registered Nurse First Assistant, not a direct census of people, jobs, or clinical activity.
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