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Vivian Lien, M.D.

Ophthalmology Physician in Mather, CA · enumerated 2010.

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

National Provider Identifier

1144520339

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Registry record

Entity type Individual (Type 1)
Name Vivian Lien
Credential M.D.
Sex Female
Practice address 10535 Hospital Way Bldg 720, Mather, CA, 95655
Phone (916) 366-5463
Fax (916) 366-5463
Enumeration date Oct 22, 2010
Last updated in NPPES May 1, 2026

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License A119811 (CA) Primary
207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License Q0305 (TX) Secondary
207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License R71949 (AZ) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

Where does Vivian Lien practice?
The practice location on file with NPPES is in Mather, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Vivian Lien?
The National Provider Identifier (NPI) for Vivian Lien is 1144520339, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-01.