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St Clair Allergy-Asthma

Specialist in St. Clair, MO · enumerated 2009 · authorized official John Marcum, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1225367337

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Registry record

Entity type Organization (Type 2)
Legal business name St Clair Allergy-Asthma
Practice address 1020 St. Clair Plaza, St. Clair, MO, 63077
Phone (636) 629-6030
Fax (636) 629-6030
Enumeration date Dec 18, 2009
Last updated in NPPES Jul 25, 2014

Taxonomy & classification

174400000X Specialist Other Service Providers · License R3G15 (MO) Primary

Authorized official

Name John Marcum
Title President
Phone (636) 629-6030

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What type of organization is St Clair Allergy-Asthma?
St Clair Allergy-Asthma is registered in NPPES as a Specialist (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-07-25.