1. Home
  2. Directory
  3. Arkansas
  4. Warren
  5. Clinic Center
  6. NPI Profile

MAINLINE HEALTH SYSTEMS, INC
NPI 1386322766
Clinic/Center - Federally Qualified Health Center (FQHC) in Warren, AR

Active since July 06, 2023
2018 LADY JACK DRIVE, WARREN, AR 71671(870) 226-6754(870) 226-7925 Get Directions Write a Review

NPPES record last updated: March 23, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Mar 23, 2026, Aug 6, 2025, May 15, 2025 and 2 more (5 updates tracked since 2023).

About Mainline Health Systems, Inc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MAINLINE HEALTH SYSTEMS, INC (NPI 1386322766), doing business as Warren Elementary School, is a healthcare organization registered as a federally qualified health center (fqhc) in Warren, Arkansas and active in the NPI registry since July 2023. The organization lists Gary Allan Nichols, Ceo, as its authorized official.

NPPES Registry Identity

NPI1386322766
Entity TypeOrganization
Primary Taxonomy261QF0400X
Legal Business NameMAINLINE HEALTH SYSTEMS, INC
Location Address2018 LADY JACK DRIVEWarren, AR 71671
Mailing Address342 Highway 425 SMonticello, AR 71655-4612 · (870) 942-3000 · Fax (870) 942-3005
Phone(870) 226-6754
Fax(870) 226-7925
Organization SubpartNo
Authorized OfficialGary Allan NicholsCeo · (870) 942-3000
Enumeration DateJuly 6, 2023
Last NPPES UpdateMarch 23, 20265 updates tracked since enumeration
NPPES CertifiedMarch 23, 2026
✔ NPI 1386322766 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyClinic/Center · Federally Qualified Health Center (FQHC)Ambulatory Health Care Facilities
Taxonomy Code261QF0400X
Also ListedClinic/Center · DentalTaxonomy 261QD0000X
2018 LADY JACK DRIVE, Warren, AR 71671
Open in Google Maps ↗

Other Names 1

Doing Business AsWarren Elementary School

Other Identifiers 1

Medicaid308781749AR

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Louisiana Healthcare Connections and more.Insurance ›

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mainline Health Systems, Inc's NPI number?

The NPI number for Mainline Health Systems, Inc is 1386322766. It was assigned to this organization in the NPPES registry on July 6, 2023. The provider is doing business as Warren Elementary School.

Where is Mainline Health Systems, Inc located?

Mainline Health Systems, Inc is located at 2018 Lady Jack Drive, Warren, AR 71671. The listed phone number is (870) 226-6754.

What is Mainline Health Systems, Inc's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Federally Qualified Health Center (FQHC), with taxonomy code 261QF0400X.

What insurance does Mainline Health Systems, Inc accept?

Health plans from Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Louisiana Healthcare Connections, Ambetter from Magnolia Health and Ambetter from Superior HealthPlan and 2 other insurers list Mainline Health Systems, Inc as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mainline Health Systems, Inc was last updated on March 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.