NPI Portal NPI Lookup & Verification

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

Mrs. Marlene Elaine Gruver, L.S.W.

Clinical Social Worker in Austintown, OH · enumerated 2006.

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

National Provider Identifier

1881626729

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mrs. Marlene Elaine Gruver
Credential L.S.W.
Sex Female
Practice address Austintown, OH, 44515
Phone (330) 797-4050
Fax (330) 797-4090
Enumeration date Jul 7, 2006
Last updated in NPPES Jul 9, 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 S0018034 (OH) Primary

Other identifiers

Identifier Type State Issuer
18232226700 Other OH SHEAKLEY UNICOMP
3418557621A13 Other OH BLUECROSS/BLUE SHIELD
5255599 Other OH AETNA
0560744 Medicaid OH -

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 Marlene Gruver practice?
The practice location on file with NPPES is in Austintown, OH. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Marlene Gruver?
The National Provider Identifier (NPI) for Marlene Gruver is 1881626729, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.