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

Sylvie P. Demers, LCSW

Clinical Social Worker in Portland, ME · enumerated 2006.

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

National Provider Identifier

1679585384

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Registry record

Entity type Individual (Type 1)

Name Sylvie P. Demers

Credential LCSW

Sex Female

Practice address Portland, ME, 04101

Phone (207) 205-1935

Fax (207) 761-0265

Enumeration date Aug 12, 2006

Last updated in NPPES Jul 21, 2022

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 LC9804 (ME) 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
281860099	Medicaid	ME	-

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 Sylvie Demers?

The National Provider Identifier (NPI) for Sylvie Demers is 1679585384, a Type 1 (individual) record in the CMS NPPES registry.

Where does Sylvie Demers practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.