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Special Hospital: NPI taxonomy code 284300000X

Taxonomy code 284300000X is Special Hospital, in the Hospitals group.

863 active NPIs list it as their primary specialty (<0.1% of all).

Code284300000X
GroupHospitals
ClassificationSpecial Hospital
Used fororganizations (the code is in NUCC's Non-Individual section)
Active NPIs, primary specialty863 (103 individuals, 760 organizations)

What NUCC says: A designation by the AHA of a hospital whose primary function of the institution is to provide diagnostic and treatment services for patients who have specified medical conditions, both surgical and nonsurgical. (excerpt of the NUCC 26.1 definition)

Find Special Hospital providers

Search the registry for providers listing Special Hospital. Pick a state to narrow it down.

Where they are

StateActive NPIsShare
New York11213.0%
California10011.6%
Texas849.7%
Ohio768.8%
Pennsylvania384.4%
Maryland364.2%
Florida364.2%
Arizona283.2%
New Jersey222.5%
Massachusetts202.3%

Top states by practice location, from the NPPES file of September 13, 2026.

Specialty definitions are from the NUCC Health Care Provider Taxonomy (version 26.1). Which code to use on a claim depends on your NPPES record and your payer. See taxonomy codes explained.