Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Karen A Williams, APRN

Occupational Health Nurse Practitioner in New London, CT · enumerated 2006.

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

National Provider Identifier

1457464000

Verified

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Registry record

Entity type Individual (Type 1)

Name Karen A Williams

Credential APRN

Sex Female

Practice address 365 Montauk Ave, New London, CT, 06320

Phone (860) 446-8265

Fax (860) 448-6961

Enumeration date Aug 17, 2006

Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

363LX0106X Occupational Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 002049 (CT) Primary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN credential

Other identifiers

Identifier	Type	State	Issuer
4024972	Medicaid	CT	-
4014679	Medicaid	CT	-

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 Karen Williams?

The National Provider Identifier (NPI) for Karen Williams is 1457464000, a Type 1 (individual) record in the CMS NPPES registry.

Where does Karen Williams practice?

The practice location on file with NPPES is in New London, 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 2007-07-09.