Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Christine Murray Johannesen, O.D.

Optometrist in Livermore, CA · enumerated 2016.

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

National Provider Identifier

1528513470

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Registry record

Entity type Individual (Type 1)

Name Dr. Christine Murray Johannesen

Credential O.D.

Sex Female

Practice address 1230 Hillview Dr, Livermore, CA, 94551

Phone (925) 455-4454

Enumeration date Aug 22, 2016

Last updated in NPPES Aug 22, 2016

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License OPT1920 (CO) Secondary

152W00000X Optometrist Eye and Vision Services Providers · License OPT14384 (CA) 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 specialty is Christine Murray Johannesen?

Christine Murray Johannesen 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.

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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-08-22.