261Q00000X
Clinic/Center Research Taxonomy Code 261QR1100X
261QR1100X
Level III - Area of Specialization
632Registered providers
26.0NUCC version
48States & territories
Definition
No official NUCC definition is published for this code.
Code Details for 261QR1100X
About Taxonomy Code 261QR1100X
The taxonomy code 261QR1100X identifies Clinic/Center Research within the Ambulatory Health Care Facilities provider grouping. It is a Level III — Area of Specialization code, the most specific tier: it narrows the parent classification to a defined subspecialty.
NPI records show 632 registered providers whose primary or secondary taxonomy is this code. Of these, 537 (85%) are registered as organizations and 95 (15%) as individual providers. The states with the most clinic/center research providers are Florida (168), California (49), Texas (45).
Taxonomy codes are self-selected by the provider based on their education and training; they describe the provider's type and specialty, not the specific services rendered.
Provider Composition & Statistics
632Total providers
537Organizations 85%
95Individuals 15%
46Female
49Male
Gender is recorded for individual providers only; organizations are not gendered. Source: NPPES, last updated 2026-07-05T00:00:00.
View all 632 providersClinic/Center Research Providers by State
Provider counts by U.S. state and territory. Select a state to open its provider directory.
All states (nationwide)
632
Alabama6Alaska1American Samoa1Arizona20Arkansas2California49Colorado15Connecticut6Delaware1District Of Columbia6Florida168Georgia25Hawaii1Idaho2Illinois22Indiana9Iowa1Kansas4Kentucky1Louisiana6Maryland11Massachusetts10Michigan7Minnesota4Mississippi4Missouri7Montana2Nevada6New Hampshire1New Jersey11New Mexico1New York28North Carolina18North Dakota2Ohio15Oklahoma4Oregon5Pennsylvania13Puerto Rico14South Carolina4Tennessee8Texas45Utah4Virginia9Washington4West Virginia1Wisconsin4Wyoming1
Frequently Asked Questions
261QR1100X questionsNPPES lists 632 registered providers with this taxonomy code (Clinic/Center Research).
Both. About 85% of these providers are registered as organizations and 15% as individuals.
This taxonomy code does not map to a Medicare specialty code in the current crosswalk.
It is a Level III - Area of Specialization code in the NUCC Health Care Provider Taxonomy set. As an area of specialization, it falls under the Clinic/Center classification (parent code 261Q00000X).
Use the "Providers by state" directory on this page to open the list of clinic/center research providers registered in any U.S. state.
Source: National Uniform Claim Committee (NUCC) Health Care Provider Taxonomy code set, Version 26.0. Provider counts from NPPES. See nucc.org.
