Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Louisa C. Gaiter Johnson, O.D.

Optometrist in Levittown, PA · enumerated 2010.

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

National Provider Identifier

1649584053

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Registry record

Entity type Individual (Type 1)

Name Louisa C. Gaiter Johnson

Credential O.D.

Sex Female

Practice address 1568 Woodbourne Rd, Levittown, PA, 19057

Phone (215) 943-7800

Fax (215) 943-6254

Enumeration date Jul 28, 2010

Last updated in NPPES Jul 28, 2010

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License OEG002343 (PA) 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
OEG002343	Other	PA	PA OPTOMETRIC LICENSE

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Louisa Johnson?

Louisa Johnson is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-07-28.