Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Psychiatric Treatment & Resource Center Inc.

Adult Mental Health Clinic/Center in East Haven, CT · enumerated 2011 · authorized official Linda Grisgraber, Aprn2035565225.

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

National Provider Identifier

1740587526

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Registry record

Entity type Organization (Type 2)

Legal business name Psychiatric Treatment & Resource Center Inc.

Practice address 647 Main St, East Haven, CT, 06512

Phone (203) 672-5956

Fax (203) 404-7126

Enumeration date Feb 14, 2011

Last updated in NPPES Oct 5, 2016

Taxonomy & classification

261QM0850X Adult Mental Health Clinic/Center Ambulatory Health Care Facilities · License 001868 (CT) Primary

Authorized official

Name Linda Grisgraber

Title Aprn2035565225

Phone (203) 556-5225

Other identifiers

Identifier	Type	State	Issuer
364SP0808X	Other	CT	CLINICAL SPECIALIST PSYCH MENTAL HEALTH

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 a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Psychiatric Treatment & Resource Center Inc.?

Psychiatric Treatment & Resource Center Inc. is registered in NPPES as a Adult Mental Health Clinic/Center (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-10-05.