Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Defined Focus Collective, Pllc

Psychiatric/Mental Health Nurse Practitioner in Olive Branch, MS · enumerated 2026 · authorized official Di'Yana Fisher, Owner.

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

National Provider Identifier

1891617023

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Defined Focus Collective, Pllc

Practice address 9041 Gavin Dr, Olive Branch, MS, 38654

Phone (731) 334-1680

Enumeration date Jul 28, 2026

Last updated in NPPES Jul 28, 2026

Taxonomy & classification

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Primary

Authorized official

Name Di'Yana Fisher

Title Owner

Phone (731) 334-1680

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2026-07-28. Verify at npiregistry.cms.hhs.gov.

Where is Defined Focus Collective, Pllc located?

The practice location on file with NPPES is in Olive Branch, MS.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-28.