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Critical Care Medicine Registered Nurse: how many are there, and how many are in private practice?

Critical Care Medicine Registered Nurse is a NUCC taxonomy classification in the Nursing Service Providers grouping for registered nurses associated with critical care medicine. NUCC does not publish an official definition for this code. This page summarizes active NPI records using 163WC0200X as their primary taxonomy, the NPPES sole-proprietor flag, state distribution, and recent first-enumeration counts.

National totals

Active NPI records6,529
Registered sole proprietors2,220 (34.0%)
NUCC taxonomy code163WC0200X
GroupingNursing Service Providers

Reading the sole-proprietor share

For this specialty, the 34.0% share is the portion of active records with this primary taxonomy that NPPES flags as sole proprietors. Because the field is self-reported, it is an imperfect proxy for private practice and should not be treated as a definitive count of independent clinicians, practices, or employment arrangements.

By state

StateActive NPIsSole proprietorsShare
California51521040.8%
Florida49420541.5%
Tennessee43324255.9%
New York43314333.0%
Texas42113933.0%
Ohio3539226.1%
Pennsylvania2458233.5%
Michigan2417129.5%
Illinois22910244.5%
Arizona2276930.4%
North Carolina2125124.1%
Georgia1777240.7%
Virginia1633420.9%
Maryland1564830.8%
South Carolina1524127.0%
Missouri1463221.9%
Washington1254334.4%
New Jersey1153933.9%
Indiana1142622.8%
Colorado1144539.5%
Massachusetts1123228.6%
Minnesota983333.7%
Alabama953738.9%
Kansas861820.9%
Oregon842327.4%
Oklahoma772532.5%
Wisconsin702535.7%
Louisiana642539.1%
Delaware631828.6%
Kentucky581220.7%
Connecticut571628.1%
Nevada552240.0%
New Mexico471123.4%
Iowa47<11not reported
District of Columbia461123.9%
Utah431432.6%
Arkansas421228.6%
West Virginia411229.3%
Mississippi341647.1%
New Hampshire27<11not reported
North Dakota26<11not reported
Idaho22<11not reported
Alaska21<11not reported
Nebraska21<11not reported
Maine20<11not reported
South Dakota17<11not reported
Wyoming17<11not reported
Rhode Island14<11not reported
Montana11<11not reported

New NPI registrations by year

Year first enumeratedNPIs
2017195
2018249
2019334
2020492
2021632
2022577
2023714
2024917
20251,179
2026 (partial year)27

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

Source: CMS National Plan and Provider Enumeration System (NPPES) Data Dissemination file, FOIA-disclosable public data under CMS-6060-N. Aggregated by Hero EMR on 2026-08-03; deactivated NPIs excluded; specialty assigned from the primary taxonomy code (NUCC 25.1). Counts below 11 are suppressed. Individual providers are never published. All provider data pages.

Common questions

How many Critical Care Medicine Registered Nurses are there in the United States?

The page reports 6,529 active NPI records with this taxonomy as the primary taxonomy. This is a count of records, not a direct measure of clinical workload, staffing, or patient volume.

How many Critical Care Medicine Registered Nurses are in private practice?

NPPES flags 2,220 records, or 34.0%, as sole proprietors. This self-reported flag is an imperfect proxy for private practice, not a definitive private-practice count.

Which states have the most Critical Care Medicine Registered Nurses?

The largest reported state counts are California with 515, Florida with 494, Tennessee with 433, New York with 433, and Texas with 421.

How many NPIs for this specialty were first enumerated recently?

NPIs with this primary taxonomy were first enumerated 917 times in 2024, 1,179 times in 2025, and 27 times in 2026.

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