Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Margie W Cornwell, MD

Clinical Pathology/Laboratory Medicine Physician in Harlingen, TX · enumerated 2006.

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

National Provider Identifier

1740249846

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Registry record

Entity type Individual (Type 1)

Name Dr. Margie W Cornwell

Credential MD

Sex Female

Practice address 2101 Pease St, Harlingen, TX, 78550

Phone (956) 423-3335

Fax (956) 421-5820

Enumeration date Mar 20, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207ZP0105X Clinical Pathology/Laboratory Medicine Physician Allopathic & Osteopathic Physicians · License G2119 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Margie Cornwell?

The National Provider Identifier (NPI) for Margie Cornwell is 1740249846, a Type 1 (individual) record in the CMS NPPES registry.

Where does Margie Cornwell practice?

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

Other providers at this practice address

Browse all →

Herbert Nassour Plastic and Reconstructive Surgery Physician · Harlingen, TX NPI 1972506228 Mark Hayden Emergency Medical Services (Emergency Medicine) Physician · Harlingen, TX NPI 1376537175 Michael Mohun Emergency Medical Services (Emergency Medicine) Physician · Harlingen, TX NPI 1235123043 Valley Emergency Physicians Emergency Medicine Physician · Harlingen, TX NPI 1699769513 David Moyer Diener Emergency Medical Services (Emergency Medicine) Physician · Harlingen, TX NPI 1942294756 Andrew Okafor Emergency Medical Services (Emergency Medicine) Physician · Harlingen, TX NPI 1932193745 Edward Mason Emergency Medical Services (Emergency Medicine) Physician · Harlingen, TX NPI 1982698437 Julia Nathan Emergency Medical Services (Emergency Medicine) Physician · Harlingen, TX NPI 1699769141

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