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MAINLINE HEALTH SYSTEMS INC
NPI 1215700265
Clinic/Center - Federally Qualified Health Center (FQHC) in Warren, AR

Active since November 01, 2023CLIA Certified · 2 labs
803 N WALNUT ST RM 214, WARREN, AR 71671(870) 226-6754(870) 226-7925 Get Directions Write a Review

NPPES record last updated: May 15, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 15, 2025, Sep 19, 2024, Jul 11, 2024 and 3 more (6 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 1215700265), doing business as Warren High School Behavioral Health Clinic, is a healthcare organization registered as a federally qualified health center (fqhc) in Warren, Arkansas and active in the NPI registry since November 2023. The organization holds 2 active CLIA laboratory certificates and lists Gary Allan Nichols, Ceo, as its authorized official.

NPPES Registry Identity

NPI1215700265
Entity TypeOrganization
Primary Taxonomy261QF0400X
Legal Business NameMAINLINE HEALTH SYSTEMS INC
Location Address803 N WALNUT ST RM 214Warren, AR 71671-2008
Mailing AddressPo Box 509Dermott, AR 71638-0509 · (870) 942-3000 · Fax (870) 538-5412
Phone(870) 226-6754
Fax(870) 226-7925
Organization SubpartNo
Authorized OfficialGary Allan NicholsCeo · (870) 942-3000
Enumeration DateNovember 1, 2023
Last NPPES UpdateMay 15, 20256 updates tracked since enumeration
NPPES CertifiedMay 15, 2025
✔ NPI 1215700265 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
803 N WALNUT ST RM 214, Warren, AR 71671
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Other Names 1

Doing Business AsWarren High School Behavioral Health Clinic

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

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 ›

CLIA Laboratory Certificates CMS CLIA 3

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 Waiver 04D2284822

Mainline Health Systems Inc Warren Elementary School Clinic · Warren, AR
Active · expires Jun 28, 2027
CLIA Number04D2284822
Laboratory TypeSchool/Student Health Service
Certificate Effective DateJune 29, 2025
Certificate Expiration DateJune 28, 2027
Laboratory DirectorDr. Kerry F. Pennington
Laboratory Phone(870) 226-6754
Laboratory LocationMainline Health Systems Inc Warren Elementary School Clinic2018 Lady Jack Drive, Warren, AR 71671
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Accreditation 04D0703375

Mainline Health Systems Dermott · Dermott, AR
Active · expires Jun 2, 2028
CLIA Number04D0703375
Laboratory TypePhysician Office
Certificate Effective DateJune 3, 2026
Certificate Expiration DateJune 2, 2028
Laboratory DirectorDr. John Beatty
Laboratory Phone(870) 358-3355
Laboratory LocationMainline Health Systems Dermott300 South School Street, Dermott, AR 71638
CLIA data matches this NPI record on: Name
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.

Certificate of Waiver 04D2116854

Mainline Health Systems Inc Dermott School · Dermott, AR
Expired · Aug 2, 2026
CLIA Number04D2116854
Laboratory TypeSchool/Student Health Service
Certificate Effective DateAugust 3, 2024
Certificate Expiration DateAugust 2, 2026
Laboratory DirectorDr. Kerry F. Pennington
Laboratory Phone(870) 538-3355
Laboratory LocationMainline Health Systems Inc Dermott School525 E Speedway, Dermott, AR 71638
CLIA data matches this NPI record on: Name
This certificate is issued to a laboratory to perform only waived tests.

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 1215700265. It was assigned to this organization in the NPPES registry on November 1, 2023. The provider is doing business as Warren High School Behavioral Health Clinic.

Where is Mainline Health Systems Inc located?

Mainline Health Systems Inc is located at 803 N Walnut St Rm 214, 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 CLIA laboratory certificates?

Yes. 2 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

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 May 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.