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

William L Beason, MD

Family Medicine Physician in East Lyme, CT · enumerated 2005.

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

National Provider Identifier

1518940360

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Registry record

Entity type Individual (Type 1)

Name William L Beason

Credential MD

Sex Male

Practice address East Lyme, CT, 06333

Phone (860) 739-6953

Fax (860) 739-2523

Enumeration date Nov 25, 2005

Last updated in NPPES Apr 13, 2011

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

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 029881 (CT) 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 William Beason?

The National Provider Identifier (NPI) for William Beason is 1518940360, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Beason practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-04-13.