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Specialist: how many are there, and how many are in private practice?

Specialist (NUCC taxonomy 174400000X) is grouped under Other Service Providers. It describes an individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree. This page reports active primary-taxonomy NPI records, their state distribution, the sole-proprietor share, and recent first-enumeration counts.

National totals

Active NPI records98,349
Registered sole proprietors28,192 (28.7%)
NUCC taxonomy code174400000X
GroupingOther Service Providers

What this specialty covers

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

Reading the sole-proprietor share

For this specialty, the sole-proprietor share is 28.7%, meaning 28,192 active NPI records with Specialist as their primary taxonomy are flagged that way in NPPES. This self-reported field is an imperfect proxy for private practice and does not by itself establish whether a provider works in private practice, owns a practice, or is employed by an organization.

By state

StateActive NPIsSole proprietorsShare
New York25,4649,71938.2%
California10,0302,75327.4%
Florida6,5271,71526.3%
Texas4,7801,06822.3%
Washington3,4611,64547.5%
New Jersey3,34688326.4%
Pennsylvania3,31151415.5%
Ohio2,31564527.9%
Illinois2,30862927.3%
Georgia2,21846320.9%
Colorado1,97150725.7%
North Carolina1,89135318.7%
Maryland1,87339621.1%
Michigan1,74131518.1%
Virginia1,72832618.9%
Massachusetts1,72851329.7%
Tennessee1,65229918.1%
Arizona1,63740024.4%
Oregon1,53066343.3%
Louisiana1,26829523.3%
New Hampshire1,135635.6%
Alabama1,11523020.6%
Minnesota1,06712411.6%
Missouri89120623.1%
Arkansas88116218.4%
Indiana87521324.3%
South Carolina85715418.0%
Kentucky83121325.6%
Connecticut76620026.1%
Oklahoma75420427.1%
Utah65011818.2%
New Mexico60419632.5%
Hawaii54621839.9%
Wisconsin52511822.5%
Nevada52114628.0%
Mississippi50311122.1%
West Virginia45112327.3%
Kansas4259021.2%
Maine35211432.4%
Idaho3309829.7%
Rhode Island3047123.4%
Nebraska2625119.5%
Delaware2585119.8%
North Dakota2543413.4%
District of Columbia2446024.6%
Iowa2364217.8%
Montana2167534.7%
Alaska1885629.8%
Wyoming1032726.2%
Vermont962526.0%
South Dakota781924.4%

New NPI registrations by year

Year first enumeratedNPIs
20171,938
20181,579
20191,605
20201,266
20211,556
20221,567
20231,904
20241,984
20251,945
2026 (partial year)43

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 Specialist providers are there in the United States?

There are 98,349 active NPI records nationally with Specialist as the primary taxonomy. This is a record count, not necessarily a count of unique people or currently practicing providers.

How many Specialists are in private practice?

NPPES flags 28,192 records, or 28.7%, as sole proprietors. Because this is a self-reported field, it is an imperfect proxy for private practice.

Which states have the most Specialist NPIs?

New York has the largest reported count at 25,464, followed by California, Florida, Texas, and Washington.

How many Specialist NPIs were first enumerated in recent years?

The reported first-enumeration counts are 1,984 in 2024, 1,945 in 2025, and 43 in 2026.

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