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MAINLINE HEALTH SYSTEMS INC
NPI 1861156481
Clinic/Center - Federally Qualified Health Center (FQHC) in Monticello, AR

Active since October 29, 2021
136 UNIVERSITY CT, MONTICELLO, AR 71655(870) 224-0647(855) 926-7383 Get Directions Write a Review

NPPES record last updated: March 20, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 20, 2026, May 28, 2025, Sep 18, 2024 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 1861156481), doing business as Mainline Uam Medical Clinic, is a healthcare organization registered as a federally qualified health center (fqhc) in Monticello, Arkansas and active in the NPI registry since October 2021. The organization lists Gary Allan Nichols, Ceo, as its authorized official.

NPPES Registry Identity

NPI1861156481
Entity TypeOrganization
Primary Taxonomy261QF0400X
Legal Business NameMAINLINE HEALTH SYSTEMS INC
Location Address136 UNIVERSITY CTMonticello, AR 71655-0002
Mailing Address342 Highway 425 SMonticello, AR 71655-4612 · (870) 942-3000 · Fax (870) 942-3005
Phone(870) 224-0647
Fax(855) 926-7383
Organization SubpartNo
Authorized OfficialGary Allan NicholsCeo · (870) 942-3000
Enumeration DateOctober 29, 2021
Last NPPES UpdateMarch 20, 20264 updates tracked since enumeration
NPPES CertifiedMarch 20, 2026
✔ NPI 1861156481 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
136 UNIVERSITY CT, Monticello, AR 71655
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Other Names 1

Doing Business AsMainline Uam Medical Clinic

Other Identifiers 1

Medicaid287099749AR

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 ›

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 1861156481. It was assigned to this organization in the NPPES registry on October 29, 2021. The provider is doing business as Mainline UAM Medical Clinic.

Where is Mainline Health Systems Inc located?

Mainline Health Systems Inc is located at 136 University Ct, Monticello, AR 71655. The listed phone number is (870) 224-0647.

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 20, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.