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

Elizabeth Theriault Lion, MD

Pediatrics Physician in Austin, TX · enumerated 2012.

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

National Provider Identifier

1043578354

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Registry record

Entity type Individual (Type 1)

Name Elizabeth Theriault Lion

Credential MD

Sex Female

Practice address Austin, TX, 78766

Phone (202) 577-1500

Enumeration date Apr 25, 2012

Last updated in NPPES Jul 8, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License DR.0054889 (CO) Secondary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License T1999 (TX) Primary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 151952 (CA) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

What is the NPI number for Elizabeth Lion?

The National Provider Identifier (NPI) for Elizabeth Lion is 1043578354, a Type 1 (individual) record in the CMS NPPES registry.

Where does Elizabeth Lion practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-08.