Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Edward L Mason, MD

Emergency Medical Services (Emergency Medicine) Physician in Harlingen, TX · enumerated 2005.

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

National Provider Identifier

1982698437

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Registry record

Entity type Individual (Type 1)

Name Edward L Mason

Credential MD

Sex Male

Practice address 2101 Pease St, Harlingen, TX, 78550

Phone (956) 389-1100

Enumeration date Sep 9, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207PE0004X Emergency Medical Services (Emergency Medicine) Physician Allopathic & Osteopathic Physicians · License H9114 (TX) Primary

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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Edward Mason?

Edward Mason is registered in NPPES with the primary taxonomy of Emergency Medical Services (Emergency Medicine) Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.