Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Alexander Maxwell Lyss, OD

Optometrist in Saint Louis, MO · enumerated 2024.

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

National Provider Identifier

1578300414

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Registry record

Entity type Individual (Type 1)

Name Dr. Alexander Maxwell Lyss

Credential OD

Sex Male

Practice address 4901 Forest Park Ave, Dept Ophthalmology, 6th Fl, Saint Louis, MO, 63108

Phone (314) 362-3937

Fax (866) 505-8818

Enumeration date Jul 9, 2024

Last updated in NPPES Sep 2, 2025

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 2024024906 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Alexander Lyss?

The National Provider Identifier (NPI) for Alexander Lyss is 1578300414, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alexander Lyss practice?

The practice location on file with NPPES is in Saint Louis, MO. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-02.