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

Hilary Wells Williams, O.D.

Optometrist in Hull, MA · enumerated 2005.

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

National Provider Identifier

1457350373

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Registry record

Entity type Individual (Type 1)

Name Hilary Wells Williams

Credential O.D.

Sex Female

Practice address Hull, MA, 02045

Phone (781) 925-5996

Fax (781) 925-2351

Enumeration date Jul 21, 2005

Last updated in NPPES Feb 23, 2017

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

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 3554 (MA) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

Other identifiers

Identifier	Type	State	Issuer
0355895	Medicaid	MA	-
17319	Other	MA	NEIGHBORHOOD HEALTH PLAN
W15951	Other	MA	BLUE CROSS BLUE SHEILD
9267435	Other	MA	CIGNA
04-3462299	Other	MA	COMMONWEALTH INDEMNITY
2200471	Other	MA	UNITED HEALTH CARE
755283	Other	MA	TUFTS HEALTH PLAN
152105	Other	MA	HARVARD PILGRIM

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

Is NPI 1457350373 active?

Yes, as of the latest NPPES snapshot, NPI 1457350373 is active (record last updated 2017-02-23).

How do I verify Hilary Williams's NPI record?

Cross-check NPI 1457350373 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Nantasket Eye Care Associates, LLC Optometrist · Hull, MA NPI 1912248543 Nantasket Eye Care Associates Inc Optometrist · Hull, MA NPI 1992681993

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-02-23.