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MAINLINE HEALTH SYSTEMS, INC
NPI 1164264834
Clinic/Center - Federally Qualified Health Center (FQHC) in Little Rock, AR

Active since June 12, 2024
1205 E DIXON RD, LITTLE ROCK, AR 72206(501) 234-2020(501) 588-2780 Get Directions Write a Review

NPPES record last updated: March 20, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 20, 2026, Oct 2, 2024, Jun 12, 2024 (3 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 1164264834), doing business as Mills Middle School, is a healthcare organization registered as a federally qualified health center (fqhc) in Little Rock, Arkansas and active in the NPI registry since June 2024. The organization lists Gary Allan Nichols, Ceo, as its authorized official.

NPPES Registry Identity

NPI1164264834
Entity TypeOrganization
Primary Taxonomy261QF0400X
Legal Business NameMAINLINE HEALTH SYSTEMS, INC
Location Address1205 E DIXON RDLittle Rock, AR 72206-4171
Mailing Address342 Highway 425 SMonticello, AR 71655-4612 · (870) 942-3000 · Fax (870) 942-3005
Phone(501) 234-2020
Fax(501) 588-2780
Organization SubpartNo
Authorized OfficialGary Allan NicholsCeo · (870) 942-3000
Enumeration DateJune 12, 2024
Last NPPES UpdateMarch 20, 20263 updates tracked since enumeration
NPPES CertifiedMarch 20, 2026
✔ NPI 1164264834 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
1205 E DIXON RD, Little Rock, AR 72206
Open in Google Maps ↗

Other Names 1

Doing Business AsMills Middle School

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mainline Health Systems, Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by October 31, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateArkansasEnrollment IDO20041011000567Non-DME Part B · Clinic/Group PracticeDue dateOctober 31, 2026
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

63

Medicare enrollment records show 63 clinicians reassign Medicare billing to Mainline Health Systems, Inc, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 3 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 8

Nurse Practitioner36
Family Practice9
Clinical Social Worker8
Mental Health Counselor3
Dentist2
Obstetrics/Gynecology2
Registered Dietitian or Nutrition Professional2
Internal Medicine1

Nearest to this location (20)

See all 63
Debbie Clark, LPC
Mental Health Counselor
NPI 1669056305
1205 E DIXON RD
Little Rock, AR 72206
(501) 234-2020
✔ PECOSSame address
Forrest Woods, MD
Internal Medicine
NPI 1174107916
4301 W MARKHAM ST # 634
Little Rock, AR 72205
(501) 686-5162
✔ PECOS✔ Accepts Medicare6.5 mi
Cristi Mitchell
Registered Dietitian or Nutrition Professional
NPI 1114390143
124 N SPRUCE ST
Little Rock, AR 72205
(870) 253-6299
6.9 mi
Blayne Beene, DO
Family Practice
NPI 1528552130
506 LITTLE CREEK CUT OFF RD
Sheridan, AR 72150
(870) 942-3000
✔ PECOS✔ Accepts Medicare26 mi
Kira Gray, APRN
Nurse Practitioner
NPI 1043109432
506 LITTLE CREEK CUT OFF RD
Sheridan, AR 72150
(870) 942-3000
✔ PECOS✔ Accepts Medicare26 mi
Brittney Hensley, CNP
Nurse Practitioner
NPI 1912445628
506 LITTLE CREEK CUT OFF RD
Sheridan, AR 72150
(870) 942-3000
✔ PECOS✔ Accepts Medicare26 mi
Laura Hensley, APRN
Nurse Practitioner
NPI 1063958940
506 LITTLE CREEK CUT OFF RD
Sheridan, AR 72150
(870) 942-3000
✔ PECOS✔ Accepts Medicare26 mi
Mollye Koonce, APRN, FNP-C
Nurse Practitioner
NPI 1497271456
506 LITTLE CREEK CUT OFF RD
Sheridan, AR 72150
(870) 942-3000
✔ PECOS✔ Accepts Medicare26 mi
Kelli Mctigrit, LCSW
Clinical Social Worker
NPI 1093075079
506 LITTLE CREEK CUT OFF RD
Sheridan, AR 72150
(870) 942-3000
✔ PECOS✔ Accepts Medicare26 mi
John Mitchell, MD
Family Practice
NPI 1932840782
506 LITTLE CREEK CUT OFF RD
Sheridan, AR 72150
(870) 942-3000
✔ PECOS✔ Accepts Medicare26 mi
Kimberly Golden, M.D.
Family Practice
NPI 1003038167
505 SYCAMORE STREET
Rison, AR 71665
(870) 325-6255
✔ PECOS✔ Accepts Medicare49 mi
Amanda Kelley
Clinical Social Worker
NPI 1023587524
110 N DREW ST
Star City, AR 71667
(870) 628-5110
✔ PECOS✔ Accepts Medicare56 mi
Paul Whipple, DO
Family Practice
NPI 1447335708
110 N DREW ST
Star City, AR 71667
(870) 628-5391
✔ PECOS✔ Accepts Medicare56 mi
Skylar Garner, DDS
Dentist
NPI 1225568363
557 KIRKWOOD RD
Star City, AR 71667
(870) 628-5110
✔ PECOS57 mi
Scott Johnson, LCSW
Clinical Social Worker
NPI 1003394602
1012 E CHURCH ST STE B
Warren, AR 71671
(870) 226-6754
✔ PECOS✔ Accepts Medicare74 mi
Shelly Wolfe, LPC
Clinical Social Worker
NPI 1245605054
1012 E CHURCH ST STE B
Warren, AR 71671
(870) 226-6786
✔ PECOS74 mi
Leia O'fallon, ANP
Obstetrics/Gynecology
NPI 1477269306
535 JORDAN DR
Monticello, AR 71655
(870) 367-6246
✔ PECOS✔ Accepts Medicare78 mi
Jane Pelkki, RDN
Registered Dietitian or Nutrition Professional
NPI 1457577397
535 JORDAN DR
Monticello, AR 71655
(870) 367-6246
✔ Accepts Medicare78 mi
Kelly Shrum, DO
Obstetrics/Gynecology
NPI 1427028638
535 JORDAN DR
Monticello, AR 71655
(870) 367-6246
✔ PECOS✔ Accepts Medicare78 mi
Terri Eubanks, DDS
Dentist
NPI 1306960737
300 S SCHOOL ST
Dermott, AR 71638
(870) 538-9720
✔ PECOS92 mi
See all 63 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 1164264834. It was assigned to this organization in the NPPES registry on June 12, 2024. The provider is doing business as Mills Middle School.

Where is Mainline Health Systems, Inc located?

Mainline Health Systems, Inc is located at 1205 E Dixon Rd, Little Rock, AR 72206. The listed phone number is (501) 234-2020.

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.

Is Mainline Health Systems, Inc enrolled in Medicare?

Yes. Mainline Health Systems, Inc is registered in the Medicare PECOS enrollment system.

When is Mainline Health Systems, Inc's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Arkansas, Clinic/Group Practice) is due for revalidation by October 31, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Mainline Health Systems, Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 63 clinicians in 8 Medicare specialties reassign their Medicare billing to Mainline Health Systems, Inc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Nurse Practitioner (36), Family Practice (9) and Clinical Social Worker (8). Of these, 1 practice at this address and 3 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 7 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.