NPI Portal NPI Lookup & Verification

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

Ms. Justine Sullivan, LICSW

Clinical Social Worker in Marlborough, MA · enumerated 2006 · practices at Fernandes Acupuncture and Chinese Herbal Medicine, Inc..

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

National Provider Identifier

1184720773

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Registry record

Entity type Individual (Type 1)
Name Ms. Justine Sullivan
Credential LICSW
Sex Female
Practice address Marlborough, MA, 01752
Phone (508) 662-0279
Enumeration date Sep 15, 2006
Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 110128 (MA) Primary

Other identifiers

Identifier Type State Issuer
P08564 Other MA BCBS PROVIDER NUMBER

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 Justine Sullivan?
Justine Sullivan is registered in NPPES with the primary taxonomy of Clinical Social Worker. 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 2007-07-08.