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

Ms. Jana Sieswerda, LIC.AC.

Acupuncturist in Millis, MA · enumerated 2010 · practices at Brilliant Smiles Family Dentistry PC.

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

National Provider Identifier

1184945099

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Registry record

Entity type Individual (Type 1)

Name Ms. Jana Sieswerda

Credential LIC.AC.

Sex Female

Practice address Millis, MA, 02054

Phone (508) 498-5344

Enumeration date Jun 15, 2010

Last updated in NPPES Jan 19, 2012

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

Taxonomy & licenses

171100000X Acupuncturist Other Service Providers · License 237964 (MA) Primary

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 Jana Sieswerda practice?

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

What is the NPI number for Jana Sieswerda?

The National Provider Identifier (NPI) for Jana Sieswerda is 1184945099, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Barry Shamus Dentist · Millis, MA NPI 1912048257 Brilliant Smiles Family Dentistry PC Dentist · Millis, MA NPI 1619331501

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-01-19.