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

Hilary Stuart Norton, PSY.D.

Clinical Psychologist in Cambridge, MA · enumerated 2006.

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

National Provider Identifier

1134169303

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Registry record

Entity type Individual (Type 1)

Name Hilary Stuart Norton

Credential PSY.D.

Sex Female

Practice address Cambridge, MA, 02138

Phone (978) 870-0088

Enumeration date Jun 7, 2006

Last updated in NPPES Nov 20, 2019

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

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 7403 (MA) Primary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

Other identifiers

Identifier	Type	State	Issuer
M19011	Other	MA	HMO BLUE
W05988	Other	MD	BLUE CROSS

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 Hilary Norton practice?

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

What is the NPI number for Hilary Norton?

The National Provider Identifier (NPI) for Hilary Norton is 1134169303, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-11-20.