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Dr. Karen Fern, O.D.

Optometrist in Houston, TX · enumerated 2005.

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

National Provider Identifier

1912900317

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Registry record

Entity type Individual (Type 1)
Name Dr. Karen Fern
Credential O.D.
Sex Female
Practice address 4901 Calhoun Rd, Houston, TX, 77204
Phone (713) 743-2020
Fax (713) 743-0963
Enumeration date May 31, 2005
Last updated in NPPES Sep 15, 2015

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 3339T (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
037176703 Medicaid TX -
037176701 Medicaid TX -
112409104 Medicaid TX -

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

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Karen Fern?
Karen Fern is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-09-15.