Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Katherine Ann Manalo, O.D.

Optometrist in South San Francisco, CA · enumerated 2006.

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

National Provider Identifier

1407923055

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Registry record

Entity type Individual (Type 1)

Name Dr. Katherine Ann Manalo

Credential O.D.

Sex Female

Practice address South San Francisco, CA, 94080

Phone (650) 244-9744

Fax (888) 663-9146

Enumeration date Nov 29, 2006

Last updated in NPPES Oct 10, 2016

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 13124T (CA) Primary

152W00000X Optometrist Eye and Vision Services Providers · License 7481T (TX) Secondary

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

Is NPI 1407923055 active?

Yes, as of the latest NPPES snapshot, NPI 1407923055 is active (record last updated 2016-10-10).

How do I verify Katherine Manalo's NPI record?

Cross-check NPI 1407923055 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-10-10.