Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Arthur Mcgreal Jr., OD

Optometrist in Saint Louis, MO · enumerated 2005.

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

National Provider Identifier

1689661886

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Registry record

Entity type Individual (Type 1)

Name Dr. John Arthur Mcgreal Jr.

Credential OD

Sex Male

Practice address 11710 Old Ballas Rd, Suite 102, Saint Louis, MO, 63141

Phone (314) 569-2020

Fax (314) 569-1596

Enumeration date Oct 3, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License T03182 (MO) Primary

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

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Frequently asked questions

How do I verify John Mcgreal's NPI record?

Cross-check NPI 1689661886 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1689661886 active?

Yes, as of the latest NPPES snapshot, NPI 1689661886 is active (record last updated 2007-07-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.