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

Carolyn Ann Trasko, MSW, LCSW

Clinical Social Worker in Preston, CT · enumerated 2006.

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

National Provider Identifier

1639235534

Verified

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Registry record

Entity type Individual (Type 1)

Name Carolyn Ann Trasko

Credential MSW, LCSW

Sex Female

Practice address Preston, CT, 06365

Phone (860) 887-7647

Fax (860) 887-3104

Enumeration date Dec 28, 2006

Last updated in NPPES Dec 16, 2017

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

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License CAC-3682 (CT) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 004350 (CT) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier	Type	State	Issuer
191022	Other	CT	MHN PROVIDER ID
336119	Other	CT	VALUE OPTIONS PROVIDER ID
161622942	Other	CT	TAX IDENTIFICATION NUMBER
706412000	Other	CT	MAGELLAN PROVIDER ID
2033944	Other	CT	CIGNA PROVIDER ID
P3050702	Other	CT	OXFORD PROVIDER ID
140004350CT07	Other	CT	ANTHEM PROVIDER ID
0007721113	Other	CT	AETNA PROVIDER ID
004254710	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

What is the NPI number for Carolyn Trasko?

The National Provider Identifier (NPI) for Carolyn Trasko is 1639235534, a Type 1 (individual) record in the CMS NPPES registry.

Where does Carolyn Trasko practice?

The practice location on file with NPPES is in Preston, CT. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-12-16.