Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Tressa Larson, OD, FAAO

Optometrist in Iowa City, IA · enumerated 2010.

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

National Provider Identifier

1629382189

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Registry record

Entity type Individual (Type 1)

Name Dr. Tressa Larson

Credential OD, FAAO

Sex Female

Practice address 200 Hawkins Dr, Department of Ophthalmology, Iowa City, IA, 52242

Phone (319) 356-2916

Fax (319) 384-5540

Enumeration date Jul 27, 2010

Last updated in NPPES Dec 7, 2018

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 072224 (IA) Primary

152W00000X Optometrist Eye and Vision Services Providers · License TA2296 (MD) Secondary

152W00000X Optometrist Eye and Vision Services Providers · License OEG002348 (PA) Secondary

152W00000X Optometrist Eye and Vision Services Providers · License 0618002067 (VA) Secondary

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

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Tressa Larson practice?

The practice location on file with NPPES is in Iowa City, IA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Tressa Larson?

The National Provider Identifier (NPI) for Tressa Larson is 1629382189, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-12-07.