NPI Portal NPI Lookup & Verification

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

Penelope Ann Haeker, OD

Optometrist in Sioux City, IA · enumerated 2005.

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

National Provider Identifier

1326040361

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Registry record

Entity type Individual (Type 1)
Name Penelope Ann Haeker
Credential OD
Sex Female
Practice address Sioux City, IA, 51106
Phone (712) 224-4600
Fax (712) 276-3716
Enumeration date Aug 10, 2005
Last updated in NPPES Nov 1, 2007

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 02247 (IA) 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
18018 Other IA WELLMARCK BCBS

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 NPI 1326040361 active?
Yes, as of the latest NPPES snapshot, NPI 1326040361 is active (record last updated 2007-11-01).
How do I verify Penelope Haeker's NPI record?
Cross-check NPI 1326040361 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-01.