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Dr. Liane M Rumsey, OD

Optometrist in Walnut Creek, CA · enumerated 2006 · practices at Lawrence G Mock, O.D..

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

National Provider Identifier

1588680912

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Registry record

Entity type Individual (Type 1)
Name Dr. Liane M Rumsey
Credential OD
Sex Female
Practice address 1389 N Broadway, Walnut Creek, CA, 94596
Phone (925) 930-7484
Fax (925) 930-7469
Enumeration date Jul 15, 2006
Last updated in NPPES Nov 29, 2018

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 08610T (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.

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Frequently asked questions

What is the NPI number for Liane Rumsey?
The National Provider Identifier (NPI) for Liane Rumsey is 1588680912, a Type 1 (individual) record in the CMS NPPES registry.
Where does Liane Rumsey practice?
The practice location on file with NPPES is in Walnut Creek, CA. 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 2018-11-29.