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MR. ROBERT S. WILLIAMS M.D.
NPI 1740369263
Pediatrics - Pediatric Emergency Medicine in Springdale, AR

Active since November 03, 2006PECOS Enrolled
2601 GENE GEORGE BLVD, SPRINGDALE, AR 72762(479) 725-6801(479) 725-6577 Get Directions Write a Review

NPPES record last updated: April 15, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Mar 26, 2018, Aug 18, 2017, Jun 20, 2017 (3 updates tracked since 2017).

About Mr. Robert S. Williams M.d. NPPES

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

MR. ROBERT S. WILLIAMS M.D. (NPI 1740369263) is an individual pediatric emergency medicine provider in Springdale, Arkansas, licensed in Arkansas (E-4574) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in Little Rock.

NPPES Registry Identity

NPI1740369263
Entity TypeIndividualMale
Primary Taxonomy2080P0204X
Provider Legal NameMR. ROBERT S. WILLIAMSCredential: M.D.
Location Address2601 GENE GEORGE BLVDSpringdale, AR 72762-0845
Mailing Address1 Childrens Way # 844Little Rock, AR 72202-3500 · (501) 364-2090 · Fax (501) 364-3929
Phone(479) 725-6801
Fax(479) 725-6577
Sole ProprietorNo
Enumeration DateNovember 3, 2006
Last NPPES UpdateApril 15, 20253 updates tracked since enumeration
NPPES CertifiedApril 15, 2025
✔ NPI 1740369263 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPediatrics · Pediatric Emergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080P0204X
License✔ Licensed in AR · E-4574
Definition
A pediatrician who has special qualifications to manage emergencies in infants and children.
Also ListedEmergency MedicineTaxonomy 207P00000X · License E4574 (AR)
Also ListedPediatricsTaxonomy 208000000X · License E-4574 (AR)
2601 GENE GEORGE BLVD, Springdale, AR 72762
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Secondary Practice Location 1

Location 11 Childrens Way # 844Little Rock, AR 72202-3500 · Phone (501) 364-2090 · Fax (501) 364-3929

Other Identifiers 1

Medicaid167787001AR

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Health Advantage, Octave.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. Robert S. Williams M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Robert Williams reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Arkansas Childrens Professional Services Organization LLC
145 mi
Pediatrics
1 CHILDRENS WAY
Little Rock, AR 72202
  • Reassigned Medicare billing, Arkansas enrollment
  • 653 clinicians in this Medicare group
NPI 1629889464 (501) 364-2526
Arkansas Childrens Hospital
148 mi
Pediatrics
1 CHILDRENS WAY # 664
Little Rock, AR 72202
  • Reassigned Medicare billing, Arkansas enrollment
  • 944 clinicians in this Medicare group
NPI 1598773079 (501) 364-2526
Arkansas Children's Medical Group PLLC
148 mi
Pediatrics
1 CHILDRENS WAY # 844
Little Rock, AR 72202
  • Reassigned Medicare billing, Arkansas enrollment
  • Medicare enrollment name: Arkansas Childrens Medical Group PLLC
  • 36 clinicians in this Medicare group
NPI 1396274841 (501) 364-2090

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

Other Providers at the Same Location NPPES 20

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

DR. ROBERT CATON BAKER MD
Anesthesiology (Pediatric Anesthesiology)
2601 GENE GEORGE BLVD
SPRINGDALE, AR 72762
Washington County (479) 725-6800
ABIGAIL STOVER MS, RD, LD
Dietitian, Registered
2601 GENE GEORGE BLVD
SPRINGDALE, AR 72762
Washington County (479) 725-6909
JEFFREY DALE GRILLS MD
Pediatrics
2601 GENE GEORGE BLVD
SPRINGDALE, AR 72762
Washington County (479) 725-6977
DR. KELLY DAWN MATTIX MD
Surgery (Pediatric Surgery)
2601 GENE GEORGE BLVD
SPRINGDALE, AR 72762
Washington County (479) 725-6800
MARY CATHERINE HOWELL AUD
Audiologist
2601 GENE GEORGE BLVD
SPRINGDALE, AR 72762
Washington County (479) 725-6904
DR. BRYCE ALSTON VANCE D.O.
Pediatrics (Adolescent Medicine)
2601 GENE GEORGE BLVD
SPRINGDALE, AR 72762
Washington County (479) 309-5391
CASIE MARIE JAMES MD
Pediatrics
2601 GENE GEORGE BLVD
SPRINGDALE, AR 72762
Washington County (479) 725-6866
DR. SARAH MORRIS WESTON M.D.
Pediatrics (Pediatric Emergency Medicine)
2601 GENE GEORGE BLVD
SPRINGDALE, AR 72762
Washington County (479) 725-6977

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 Robert Williams's NPI number?

The NPI number for Robert Williams is 1740369263. It was assigned to this individual provider in the NPPES registry on November 3, 2006.

Where is Robert Williams located?

Robert Williams practices at 2601 Gene George Blvd, Springdale, AR 72762. The listed phone number is (479) 725-6801.

What is Robert Williams's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Emergency Medicine, with taxonomy code 2080P0204X.

Is Robert Williams enrolled in Medicare?

Yes. Robert Williams is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Robert Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Williams reassigns Medicare benefits to 3 organizations: Arkansas Childrens Professional Services Organization LLC (Little Rock, AR), Arkansas Childrens Hospital (Little Rock, AR) and Arkansas Children's Medical Group PLLC (Little Rock, AR). Each 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 Robert Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Robert Williams accept?

Health plans from Health Advantage and Octave list Robert Williams 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 Robert Williams was last updated on April 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.