Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Carolyn Joan Demsky, APRN

Pediatric Nurse Practitioner in New Haven, CT · enumerated 2005.

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

National Provider Identifier

1518942887

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Registry record

Entity type Individual (Type 1)

Name Carolyn Joan Demsky

Credential APRN

Sex Female

Practice address 20 York St, Ynhh (Children'S) West Pavilion 2nd Floor, New Haven, CT, 06510

Phone (203) 785-4081

Fax (203) 737-2228

Enumeration date Dec 9, 2005

Last updated in NPPES Dec 11, 2017

Taxonomy & licenses

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 2939 (CT) Primary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN credential

Other identifiers

Identifier	Type	State	Issuer
004237279	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.

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Frequently asked questions

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.

What specialty is Carolyn Demsky?

Carolyn Demsky is registered in NPPES with the primary taxonomy of Pediatric Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-12-11.