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Case Management Agency: how many are there, and how many are in private practice?

Case Management Agency (NUCC taxonomy 251B00000X) describes an organization that helps individuals access, coordinate, and monitor needed medical, social, educational, and other services. These agencies may also coordinate referrals and nonmedical support. This page reports 23,019 active US NPI records with this as their primary taxonomy, with state distribution, recent enumeration counts, and the NPPES sole-proprietor flag for context.

National totals

Active NPI records23,019
Registered sole proprietors3,311 (14.4%)
NUCC taxonomy code251B00000X
GroupingAgencies

What this specialty covers

An organization that is responsible for providing case management services. The agency provides services which assist an individual in gaining access to needed medical, social, educational, and/or other services. Case management services may be used to locate, coordinate, and monitor necessary appropriate services. It may be used to encourage the use of cost-effective medical care by referrals to appropriate providers and to discourage over utilization of costly services. Case management may also serve to provide necessary coordination of non-medical services such as vocational rehabilitation, education, employment, when the services provided enable the individual to function at the highest level.

Reading the sole-proprietor share

For Case Management Agency records, the sole-proprietor flag identifies 3,311 records, or 14.4%, but it does not mean that all case management work is performed by one person. The field is self-reported in NPPES and is an imperfect proxy for private practice because it does not by itself establish ownership, staffing, independence, or how services are coordinated.

By state

StateActive NPIsSole proprietorsShare
Florida2,28930113.1%
California2,24642919.1%
Texas1,66822413.4%
North Carolina1,427372.6%
New York1,31921916.6%
Ohio1,10553048.0%
Pennsylvania745293.9%
Wisconsin681456.6%
New Jersey671334.9%
Michigan64711117.2%
Oklahoma63829145.6%
Georgia5828514.6%
Minnesota509316.1%
Maryland496275.4%
Illinois470398.3%
Virginia4684910.5%
Louisiana445327.2%
Washington430245.6%
Massachusetts3835514.4%
Kentucky34912034.4%
Idaho335226.6%
Alabama333113.3%
Arizona328144.3%
Colorado307227.2%
South Carolina3043712.2%
Alaska2874013.9%
Kansas273217.7%
Missouri269114.1%
Wyoming2678732.6%
Nevada2393715.5%
Maine228<11not reported
District of Columbia2135224.4%
Oregon204209.8%
Tennessee2033215.8%
Indiana1802011.1%
New Mexico1672213.2%
West Virginia166148.4%
Arkansas1391611.5%
Utah1373727.0%
Iowa107<11not reported
Hawaii93<11not reported
Montana84<11not reported
North Dakota83<11not reported
Mississippi81<11not reported
Connecticut76<11not reported
Rhode Island75<11not reported
New Hampshire611524.6%
Nebraska501224.0%
Vermont42<11not reported
Delaware29<11not reported
South Dakota21<11not reported

New NPI registrations by year

Year first enumeratedNPIs
2017854
2018834
2019911
2020924
20211,169
20221,030
20231,126
20241,340
20251,706
2026 (partial year)56

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 Case Management Agencies are there in the US?

There are 23,019 active NPI records nationally with Case Management Agency as the primary taxonomy.

How many Case Management Agencies are in private practice?

The NPPES sole-proprietor flag identifies 3,311 records, or 14.4%. This is an imperfect proxy for private practice because the field is self-reported and does not fully describe ownership or operations.

Which states have the most Case Management Agency NPIs?

The largest state counts shown are Florida (2,289), California (2,246), Texas (1,668), North Carolina (1,427), and New York (1,319).

How many Case Management Agency NPIs were first enumerated in recent years?

The listed first-enumeration totals for the most recent full years available are 1,340 in 2024, 1,706 in 2025, and 56 in 2026.

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