Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William F Kiefer, OD

Optometrist in Saint Louis, MO · enumerated 2006 · practices at Clarkson Optometry Inc.

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

National Provider Identifier

1588627400

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Registry record

Entity type Individual (Type 1)

Name William F Kiefer

Credential OD

Sex Male

Practice address 12406 Tesson Ferry Rd, Saint Louis, MO, 63128

Phone (314) 843-1716

Fax (314) 843-0196

Enumeration date Apr 11, 2006

Last updated in NPPES Oct 2, 2014

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License T02269 (MO) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier	Type	State	Issuer
1588627400	Medicaid	MO	-
P00837143	Other	MO	RR MEDICARE

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

How do I verify William Kiefer's NPI record?

Cross-check NPI 1588627400 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1588627400 active?

Yes, as of the latest NPPES snapshot, NPI 1588627400 is active (record last updated 2014-10-02).

Other providers at this practice address

Browse all →

Kristin Mcmurry Optometrist · Saint Louis, MO NPI 1003885278 Clarkson Optometry Inc Optometrist · Saint Louis, MO NPI 1215240171

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-10-02.