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

Jennifer Ann Vlacovsky, MSW, LICSW

School Social Worker in Sudbury, MA · enumerated 2018.

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

National Provider Identifier

1215426135

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Registry record

Entity type Individual (Type 1)

Name Jennifer Ann Vlacovsky

Credential MSW, LICSW

Sex Female

Practice address Sudbury, MA, 01776

Phone (978) 639-3208

Enumeration date May 7, 2018

Last updated in NPPES May 7, 2018

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

Taxonomy & licenses

1041S0200X School Social Worker Behavioral Health & Social Service Providers · License 113408 (MA) Primary

Other identifiers

Identifier	Type	State	Issuer
113408	Other	MA	LICSW (SOCIAL WORK LICENSE)

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 does Jennifer Vlacovsky practice?

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

What is the NPI number for Jennifer Vlacovsky?

The National Provider Identifier (NPI) for Jennifer Vlacovsky is 1215426135, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-07.