Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Essential Primary Healthcare

Primary Care Clinic/Center in Marion, SC · enumerated 2026 · authorized official Tammy Mcmillan, Nurse Practitioner.

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

National Provider Identifier

1891647392

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Registry record

Entity type Organization (Type 2)

Legal business name Essential Primary Healthcare

Practice address 609 N Main St Ste 601, Marion, SC, 29571

Phone (843) 468-1299

Enumeration date Feb 10, 2026

Last updated in NPPES Feb 10, 2026

Taxonomy & classification

261QP2300X Primary Care Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Tammy Mcmillan

Title Nurse Practitioner

Phone (843) 468-1299

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 is Essential Primary Healthcare located?

The practice location on file with NPPES is in Marion, SC.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2026-02-10. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-10.