Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sampson Fong, O. D.

Q: What is the NPI number for Sampson Fong?

The National Provider Identifier (NPI) for Sampson Fong is 1396861522, a Type 1 (individual) record in the CMS NPPES registry.

Optometrist in Castro Valley, CA · enumerated 2007 · practices at Eye Specialties Medical Group Inc..

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

National Provider Identifier

1396861522

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Registry record

Entity type Individual (Type 1)

Name Sampson Fong

Credential O. D.

Sex Male

Practice address 20046 Lake Chabot Rd, Castro Valley, CA, 94546

Phone (510) 881-8823

Fax (510) 881-2134

Enumeration date Mar 21, 2007

Last updated in NPPES Oct 4, 2013

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 8180T (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 is the NPI number for Sampson Fong?

The National Provider Identifier (NPI) for Sampson Fong is 1396861522, a Type 1 (individual) record in the CMS NPPES registry.

Where does Sampson Fong practice?

The practice location on file with NPPES is in Castro Valley, 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 2013-10-04.