Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Mary L. Hester

Q: What is the NPI number for Mary Hester?

The National Provider Identifier (NPI) for Mary Hester is 1407026057, a Type 1 (individual) record in the CMS NPPES registry.

Intellectual & Developmental Disabilities Psychologist in St. Louis, MO · enumerated 2008.

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

National Provider Identifier

1407026057

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Registry record

Entity type Individual (Type 1)

Name Mrs. Mary L. Hester

Sex Female

Practice address 3128 St. Vincent Ave, St. Louis, MO, 63104

Phone (314) 773-5350

Fax (314) 773-5350

Enumeration date Mar 10, 2008

Last updated in NPPES Mar 10, 2008

Taxonomy & licenses

103TM1800X Intellectual & Developmental Disabilities Psychologist Behavioral Health & Social Service Providers Primary

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 Mary Hester practice?

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

What is the NPI number for Mary Hester?

The National Provider Identifier (NPI) for Mary Hester is 1407026057, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-10.