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

Gemma Alger, O.D.

Optometrist in Bastrop, TX · enumerated 2006.

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

National Provider Identifier

1386751519

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Registry record

Entity type Individual (Type 1)
Name Gemma Alger
Credential O.D.
Sex Female
Practice address Bastrop, TX, 78602
Phone (512) 303-2861
Enumeration date Aug 24, 2006
Last updated in NPPES Aug 31, 2012

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 6057T (TX) 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
0020FD Other TX BCBS PROVIDER NUMBER

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 Gemma Alger practice?
The practice location on file with NPPES is in Bastrop, TX. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Gemma Alger?
The National Provider Identifier (NPI) for Gemma Alger is 1386751519, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-08-31.