NPI Portal NPI Lookup & Verification

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

Dr. Theresa J. Haas, O.D

Optometrist in Cheyenne, WY · enumerated 2005 · practices at Family Vision Center PC.

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

National Provider Identifier

1669465092

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Registry record

Entity type Individual (Type 1)
Name Dr. Theresa J. Haas
Credential O.D
Sex Female
Practice address Cheyenne, WY, 82001
Phone (307) 634-4232
Fax (307) 778-8429
Enumeration date Aug 31, 2005
Last updated in NPPES Oct 13, 2008

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 238T (WY) 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
36203 Other WY DAVIS VISION
410041316 Other WY RAIL ROAD MEDICARE
307865 Other WY BLUE CROSS BLUE SHEILD
114039600 Medicaid WY -

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 specialty is Theresa Haas?
Theresa Haas 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.
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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-10-13.