Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John B Selhorst, MD

Neurology Physician in St Louis, MO · enumerated 2006.

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

National Provider Identifier

1124045703

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Registry record

Entity type Individual (Type 1)

Name John B Selhorst

Credential MD

Sex Male

Practice address 3660 Vista, St Louis, MO, 63110

Phone (314) 577-8738

Fax (314) 268-5101

Enumeration date Jul 17, 2006

Last updated in NPPES Mar 18, 2008

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 31111 (MO) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1124045703 active?

Yes, as of the latest NPPES snapshot, NPI 1124045703 is active (record last updated 2008-03-18).

How do I verify John Selhorst's NPI record?

Cross-check NPI 1124045703 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-18.