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

Dr. Theresa J Ruggiero, O.D.

Optometrist in Northampton, MA · enumerated 2006.

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

National Provider Identifier

1578640678

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Registry record

Entity type Individual (Type 1)

Name Dr. Theresa J Ruggiero

Credential O.D.

Sex Female

Practice address Northampton, MA, 01060

Phone (413) 586-5002

Fax (413) 586-4769

Enumeration date Nov 1, 2006

Last updated in NPPES Oct 4, 2011

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 04-3192348 (MA) Primary

152WL0500X Low Vision Rehabilitation Optometrist Eye and Vision Services Providers · License 04-3192348 (MA) Secondary

152WV0400X Vision Therapy Optometrist Eye and Vision Services Providers · License 04-3192348 (MA) Secondary

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
W15722	Other	MA	BLUE CROSS BLUE SHIELD

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 Theresa Ruggiero?

The National Provider Identifier (NPI) for Theresa Ruggiero is 1578640678, a Type 1 (individual) record in the CMS NPPES registry.

Where does Theresa Ruggiero practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-04.