NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Allie Katharine Olmstead, DO

Vascular Surgery Physician in Dallas, TX · enumerated 2019.

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

National Provider Identifier

1619438835

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Allie Katharine Olmstead
Credential DO
Sex Female
Practice address 621 N Hall St, Dallas, TX, 75226
Enumeration date Mar 29, 2019
Last updated in NPPES May 26, 2026

Taxonomy & licenses

2086S0129X Vascular Surgery Physician Allopathic & Osteopathic Physicians · License W3852 (TX) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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

Is NPI 1619438835 active?
Yes, as of the latest NPPES snapshot, NPI 1619438835 is active (record last updated 2026-05-26).
How do I verify Allie Olmstead's NPI record?
Cross-check NPI 1619438835 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-26.