Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Charter Oak Health Center

Point of Service in Hartford, CT · enumerated 2008 · authorized official Jeffery Gagnon, Financial Director.

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

National Provider Identifier

1558512590

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Registry record

Entity type Organization (Type 2)

Legal business name Charter Oak Health Center

Practice address 21 Grand St, Hartford, CT, 06106

Phone (860) 550-7500

Enumeration date Oct 8, 2008

Last updated in NPPES Oct 8, 2008

Taxonomy & classification

305S00000X Point of Service Managed Care Organizations Primary

Authorized official

Name Jeffery Gagnon

Title Financial Director

Phone (860) 550-7500

Other identifiers

Identifier	Type	State	Issuer
004236015	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 Charter Oak Health Center located?

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-10-08. 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 2008-10-08.