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

William G Langston, MD

Emergency Medicine Physician in Wailuku, HI · enumerated 2005.

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

National Provider Identifier

1013903640

Verified

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Registry record

Entity type Individual (Type 1)

Name William G Langston

Credential MD

Sex Male

Practice address Wailuku, HI, 96793

Phone (808) 242-2290

Enumeration date Sep 20, 2005

Last updated in NPPES Jun 17, 2009

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

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 00026726 (AL) Primary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License MD-13539 (HI) Secondary

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
7820686	Other	AL	AETNA
051530205	Other	AL	BCBS PROVIDER NUMBER
626749	Medicaid	HI	-
0000281071	Other	HI	BLUECROSSBLUESHIELD
009935826	Medicaid	AL	-
051556498	Medicaid	AL	-

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 William Langston's NPI record?

Cross-check NPI 1013903640 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1013903640 active?

Yes, as of the latest NPPES snapshot, NPI 1013903640 is active (record last updated 2009-06-17).

Other providers at this practice address

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Steven Filardo Interventional Cardiology Physician · Wailuku, HI NPI 1740286814 Randy Stark Emergency Medicine Physician · Wailuku, HI NPI 1710987664 Michael Shea Pulmonary Disease Physician · Wailuku, HI NPI 1689666471 John Blazek Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist · Wailuku, HI NPI 1730174509 Ben Thompson Psychiatry Physician · Wailuku, HI NPI 1639158744 Bettina Ackermann Pediatrics Physician · Wailuku, HI NPI 1205807625 Jeffrey Cryan Gastroenterology Physician · Wailuku, HI NPI 1831149566 Donna Blancas Physical Therapist · Wailuku, HI NPI 1033164546

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-06-17.