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

Dr. Janet S D'Arcangelo, PHD, APRN, BC-PMHCS

Psychiatric/Mental Health Nurse Practitioner in Darien, CT · enumerated 2007.

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

National Provider Identifier

1477619500

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Registry record

Entity type Individual (Type 1)

Name Dr. Janet S D'Arcangelo

Credential PHD, APRN, BC-PMHCS

Sex Female

Practice address Darien, CT, 06820

Phone (203) 655-1250

Fax (203) 621-3444

Enumeration date Jan 1, 2007

Last updated in NPPES May 18, 2008

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

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License R28279 (CT) Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 002415 (CT) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
243936	Other	CT	HEALTH NET PROVIDER #
400002415CT03	Other	CT	ANTHEM
62-67669	Other	CT	UNITED HEALTHCARE
P3602604	Other	CT	OXFORD HEALTH PLANS
7547131	Other	CT	CIGNA

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.

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Frequently asked questions

What specialty is Janet D'Arcangelo?

Janet D'Arcangelo is registered in NPPES with the primary taxonomy of Psychiatric/Mental Health Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-18.