Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Scott Lightfoot, D.D.S., M.S.

Periodontics in Hingham, MA · enumerated 2007 · practices at William S. Lightfoot DDS, Ms, Pllc.

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

National Provider Identifier

1629194063

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Registry record

Entity type Individual (Type 1)

Name Dr. William Scott Lightfoot

Credential D.D.S., M.S.

Sex Male

Practice address 72 Sharp St Ste A6, Hingham, MA, 02043

Phone (781) 812-0740

Enumeration date Mar 21, 2007

Last updated in NPPES Apr 4, 2020

Taxonomy & licenses

1223P0300X Periodontics Dental Providers · License 21392 (MA) Primary

DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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

Where does William Lightfoot practice?

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

What is the NPI number for William Lightfoot?

The National Provider Identifier (NPI) for William Lightfoot is 1629194063, a Type 1 (individual) record in the CMS NPPES registry.

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William S. Lightfoot DDS, Ms, Pllc Dentist · Hingham, MA NPI 1407267065

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-04-04.