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MAINLINE HEALTH SYSTEMS, INC
NPI 1669401501
Clinic/Center - Federally Qualified Health Center (FQHC) in Monticello, AR

Active since July 02, 2006
342 HIGHWAY 425 S, MONTICELLO, AR 71655(870) 942-3000(870) 942-3005 Get Directions Write a Review

NPPES record last updated: March 20, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Mar 20, 2026, Nov 13, 2025, May 15, 2025 and 1 more (4 updates tracked since 2024).

About Mainline Health Systems, Inc NPPES

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

MAINLINE HEALTH SYSTEMS, INC (NPI 1669401501) is a healthcare organization registered as a federally qualified health center (fqhc) in Monticello, Arkansas and active in the NPI registry since July 2006. The organization lists Gary Allan Nichols, Ceo, as its authorized official.

NPPES Registry Identity

NPI1669401501
Entity TypeOrganization
Primary Taxonomy261QF0400X
Legal Business NameMAINLINE HEALTH SYSTEMS, INC
Location Address342 HIGHWAY 425 SMonticello, AR 71655-4612
Mailing Address342 Highway 425 SMonticello, AR 71655-4612 · (870) 942-3000 · Fax (870) 942-3005
Phone(870) 942-3000
Fax(870) 942-3005
Organization SubpartNo
Authorized OfficialGary Allan NicholsCeo · (870) 942-3000
Enumeration DateJuly 2, 2006
Last NPPES UpdateMarch 20, 20264 updates tracked since enumeration
NPPES CertifiedMarch 20, 2026
✔ NPI 1669401501 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Federally Qualified Health Center (FQHC)Ambulatory Health Care Facilities
Taxonomy Code261QF0400X
342 HIGHWAY 425 S, Monticello, AR 71655
Open in Google Maps ↗

Other Identifiers 1

Medicaid122649741AR

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 ›

Other Providers at the Same Location NPPES 2

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

ANDREA DIXON LAC
Counselor (Mental Health)
342 HIGHWAY 425 S
MONTICELLO, AR 71655
Drew County (870) 538-5414
MAINLINE HEALTH SYSTEMS, INC
Clinic/Center (Federally Qualified Health Center (FQHC))
342 HIGHWAY 425 S
MONTICELLO, AR 71655
Drew County (870) 723-4145

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 1669401501. It was assigned to this organization in the NPPES registry on July 2, 2006.

Where is Mainline Health Systems, Inc located?

Mainline Health Systems, Inc is located at 342 Highway 425 S, Monticello, AR 71655. The listed phone number is (870) 942-3000.

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 3 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 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.