Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David Ashley Swearingen, OD

Optometrist in San Dimas, CA · enumerated 2006.

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

National Provider Identifier

1912964834

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Registry record

Entity type Individual (Type 1)

Name Dr. David Ashley Swearingen

Credential OD

Sex Male

Practice address 425 W Bonita Ave, Suite 110b, San Dimas, CA, 91773

Phone (909) 394-0462

Enumeration date Apr 26, 2006

Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License OPT11528T (CA) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier	Type	State	Issuer
410044203	Other	CA	RR WITH PHYSICIANS NET.
SD0115280	Medicaid	CA	-
OPT-2138	Other	CO	COLORADO OPT LICENSE
P00115241	Other	CA	PALMETTO GBA
OPT11528T	Other	CA	CA OPTOMETRY LICENSE

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 David Swearingen?

The National Provider Identifier (NPI) for David Swearingen is 1912964834, a Type 1 (individual) record in the CMS NPPES registry.

Where does David Swearingen practice?

The practice location on file with NPPES is in San Dimas, 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 2023-03-07.