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

Dr. Mary L Seymour, MD

Pediatric Emergency Medicine (Pediatrics) Physician in Mandeville, LA · enumerated 2006.

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

National Provider Identifier

1548201742

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Registry record

Entity type Individual (Type 1)

Name Dr. Mary L Seymour

Credential MD

Sex Female

Practice address Mandeville, LA, 70448

Phone (985) 875-2340

Enumeration date Jun 9, 2006

Last updated in NPPES Dec 17, 2007

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

Taxonomy & licenses

2080P0204X Pediatric Emergency Medicine (Pediatrics) Physician Allopathic & Osteopathic Physicians · License MD.017619 (LA) Primary

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

Other identifiers

Identifier	Type	State	Issuer
1364690	Medicaid	LA	-
00119378	Medicaid	MS	-

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

How do I verify Mary Seymour's NPI record?

Cross-check NPI 1548201742 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1548201742 active?

Yes, as of the latest NPPES snapshot, NPI 1548201742 is active (record last updated 2007-12-17).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-12-17.