Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Dr. Thomas J. Prignano

Corneal and Contact Management Optometrist in East Hartford, CT · enumerated 2007 · authorized official Linda Sivo, Office Manager.

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

National Provider Identifier

1891919338

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Registry record

Entity type Organization (Type 2)

Legal business name Dr. Thomas J. Prignano

Practice address 893 Main St, Suite 201, East Hartford, CT, 06108

Phone (860) 528-5816

Fax (860) 290-5356

Enumeration date Apr 13, 2007

Last updated in NPPES Sep 23, 2008

Taxonomy & classification

152WC0802X Corneal and Contact Management Optometrist Eye and Vision Services Providers · License 2166 (CT) Primary

Authorized official

Name Linda Sivo

Title Office Manager

Phone (860) 528-5816

Other identifiers

Identifier	Type	State	Issuer
004209905	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

Where is Dr. Thomas J. Prignano located?

The practice location on file with NPPES is in East Hartford, CT.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-09-23. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-09-23.