Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William F Long, M.D.

General Practice Physician in St Johnsbury, VT · enumerated 2006.

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

National Provider Identifier

1497766778

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Registry record

Entity type Individual (Type 1)

Name William F Long

Credential M.D.

Sex Male

Practice address 1315 Hospital Dr, St Johnsbury, VT, 05819

Phone (802) 748-8141

Enumeration date Aug 11, 2006

Last updated in NPPES Apr 5, 2016

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 068-0045710 (VT) Secondary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 042-0009733 (VT) 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
0VN1814	Medicaid	VT	-
3076026	Medicaid	NH	-

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 Long's NPI record?

Cross-check NPI 1497766778 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1497766778 active?

Yes, as of the latest NPPES snapshot, NPI 1497766778 is active (record last updated 2016-04-05).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-04-05.