Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Joann Marlier, LPCC, LSW

Social Worker in Warren, OH · enumerated 2007.

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

National Provider Identifier

1487705570

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Registry record

Entity type Individual (Type 1)

Name Mrs. Joann Marlier

Credential LPCC, LSW

Sex Female

Practice address 318 Mahoning Ave Nw, Warren, OH, 44483

Phone (330) 395-9563

Fax (330) 393-5975

Enumeration date Jan 15, 2007

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License E2378 (OH) Secondary

104100000X Social Worker Behavioral Health & Social Service Providers · License S4959 (OH) Primary

Other identifiers

Identifier	Type	State	Issuer
000000125437	Other	-	ANTHEM INSURANCE

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 Joann Marlier?

The National Provider Identifier (NPI) for Joann Marlier is 1487705570, a Type 1 (individual) record in the CMS NPPES registry.

Where does Joann Marlier practice?

The practice location on file with NPPES is in Warren, OH. 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 2025-09-11.