MAINLINE HEALTH SYSTEMS INC
NPI 1396383758
Clinic/Center - Federally Qualified Health Center (FQHC) in Warren, AR

Active since December 17, 2019CLIA 04D2176977 · Accreditation
1012 E CHURCH ST STE B, 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 02, 2026.

Record update history: Mar 23, 2026, May 15, 2025, Sep 18, 2024 and 3 more (6 updates tracked since 2019).

About Mainline Health Systems Inc NPPES

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

MAINLINE HEALTH SYSTEMS INC (NPI 1396383758), doing business as Mainline Health Systems, Inc- Warren 2, is a healthcare organization registered as a federally qualified health center (fqhc) in Warren, Arkansas and active in the NPI registry since December 2019. The organization holds an CLIA Accreditation certificate valid through June 19, 2027 and lists Gary Allan Nichols, Ceo, as its authorized official.

NPPES Registry Identity

NPI1396383758
Entity TypeOrganization
Primary Taxonomy261QF0400X
Legal Business NameMAINLINE HEALTH SYSTEMS INC
Location Address1012 E CHURCH ST STE BWarren, AR 71671-3530
Mailing Address342 Highway 425 SMonticello, AR 71655-4612 · (870) 942-3000 · Fax (870) 942-3005
Fax(870) 226-7925
Organization SubpartNo
Authorized OfficialGary Allan NicholsCeo · (870) 942-3000
Enumeration DateDecember 17, 2019
Last NPPES UpdateMarch 23, 20266 updates tracked since enumeration
NPPES CertifiedMarch 23, 2026
NPI 1396383758 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 ListedPsychologist · Cognitive & BehavioralTaxonomy 103TB0200X
1012 E CHURCH ST STE B, Warren, AR 71671

Other Names 1

Doing Business AsMainline Health Systems, Inc- Warren 2

Other Identifiers 1

Medicaid240737749AR

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Accreditation 04D2176977

Mainline Health Systems Inc · Warren, AR
Active · expires Jun 19, 2027
CLIA Number04D2176977
Laboratory TypePhysician Office
Certificate Effective DateJune 20, 2025
Certificate Expiration DateJune 19, 2027
Laboratory DirectorDr. Kerry Pennington
Laboratory Phone(870) 226-6754
Laboratory LocationMainline Health Systems Inc1012 E Church St, Warren, AR 71671
CLIA data matches this NPI record on: Address Name Phone
This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Social Worker (Clinical)
1012 E CHURCH ST STE B
WARREN, AR 71671
Nurse Practitioner (Family)
1012 E CHURCH ST STE B
WARREN, AR 71671
Counselor (Professional)
1012 E CHURCH ST STE B
WARREN, AR 71671
Family Medicine
1012 E CHURCH ST STE B
WARREN, AR 71671
Nurse Practitioner (Family)
1012 E CHURCH ST STE B
WARREN, AR 71671

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 1396383758. It was assigned to this organization in the NPPES registry on December 17, 2019. The provider is doing business as Mainline Health Systems, Inc- Warren 2.

Where is Mainline Health Systems Inc located?

Mainline Health Systems Inc is located at 1012 E Church St Ste B, 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.

Does Mainline Health Systems Inc hold a CLIA laboratory certificate?

Yes. A Certificate of Accreditation (number 04D2176977) is associated with this NPI, valid through June 19, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

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.