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

Extasy Grinn, LCSW, CAP. ICADC

Q: What is the NPI number for Extasy Grinn?

The National Provider Identifier (NPI) for Extasy Grinn is 1124534912, a Type 1 (individual) record in the CMS NPPES registry.

Clinical Social Worker in Maryville, TN · enumerated 2017 · practices at Speech Pathology Services of East Tennessee LLC.

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

National Provider Identifier

1124534912

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Registry record

Entity type Individual (Type 1)

Name Extasy Grinn

Credential LCSW, CAP. ICADC

Sex Female

Practice address Maryville, TN, 37804

Phone (865) 982-3400

Fax (865) 238-2034

Enumeration date Dec 16, 2017

Last updated in NPPES Jul 9, 2025

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

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License ADC-003288-2014 (FL) Secondary

104100000X Social Worker Behavioral Health & Social Service Providers · License 7341 (TN) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License SW14806 (FL) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 7341 (TN) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

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 Extasy Grinn?

The National Provider Identifier (NPI) for Extasy Grinn is 1124534912, a Type 1 (individual) record in the CMS NPPES registry.

Where does Extasy Grinn practice?

The practice location on file with NPPES is in Maryville, TN. 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 2025-07-09.