Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

WILLIAM LESLIE STIGALL MD
NPI 1831151984
Pediatrics - Pediatric Critical Care Medicine in Tyler, TX

Active since April 04, 2006PECOS EnrolledAccepts Medicare Assignment
800 E DAWSON ST, TYLER, TX 75701(903) 606-5956 Get Directions Write a Review

NPPES record last updated: October 16, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 16, 2026, May 11, 2021, Apr 9, 2021 and 1 more (4 updates tracked since 2018).

About William Leslie Stigall Md NPPES

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

WILLIAM LESLIE STIGALL MD (NPI 1831151984) is an individual pediatric critical care medicine provider in Tyler, Texas, licensed in Texas (L7571) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Fort Worth, and is a graduate of University Of Texas Southwestern Medical School At Dallas (2002).

NPPES Registry Identity

NPI1831151984
Entity TypeIndividualMale
Primary Taxonomy2080P0203X
Provider Legal NameWILLIAM LESLIE STIGALLCredential: MD
Location Address800 E DAWSON STTyler, TX 75701-2036
Mailing AddressPo Box 733784Dallas, TX 75373-3784 · (682) 885-1860
Sole ProprietorNo
Medical School CMSUniversity Of Texas Southwestern Medical School At DallasGraduated 2002
Enumeration DateApril 4, 2006
Last NPPES UpdateOctober 16, 20264 updates tracked since enumeration
NPPES CertifiedOctober 16, 2026
✔ NPI 1831151984 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080P0203X
License✔ Licensed in TX · L7571
Definition
A pediatrician expert in advanced life support for children from the term or near-term neonate to the adolescent. This competence extends to the critical care management of life-threatening organ system failure from any cause in both medical and surgical patients and to the support of vital physiological functions. This specialist may have administrative responsibilities for intensive care units and also facilitates patient care among other specialists.
Also ListedPediatricsTaxonomy 208000000X · License L7571 (TX)
800 E DAWSON ST, Tyler, TX 75701

Secondary Practice Location 1

Location 1801 7th AveFort Worth, TX 76104-2733 · Phone (682) 885-7942

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

William Leslie Stigall Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9133164205
PECOS Enrollment IDI20050621000184
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 Reassignment

Medicare enrollment records show William Stigall reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Pediatrics
801 7TH AVE
Fort Worth, TX 76104
  • Reassigned Medicare billing, Texas enrollment
  • Medicare enrollment name: Cook Childrens Physician Network
  • 1,186 clinicians in this Medicare group

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.

Anesthesiology
800 E DAWSON ST
TYLER, TX 75701
Nurse Practitioner
800 E DAWSON ST
TYLER, TX 75701
Internal Medicine
800 E DAWSON ST
TYLER, TX 75701
Internal Medicine
800 E DAWSON ST
TYLER, TX 75701
Anesthesiology (Critical Care Medicine)
800 E DAWSON ST
TYLER, TX 75701
Emergency Medicine
800 E DAWSON ST
TYLER, TX 75701
Internal Medicine
800 E DAWSON ST
TYLER, TX 75701
Internal Medicine
800 E DAWSON ST
TYLER, TX 75701

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 William Stigall's NPI number?

The NPI number for William Stigall is 1831151984. It was assigned to this individual provider in the NPPES registry on April 4, 2006.

Where is William Stigall located?

William Stigall practices at 800 E Dawson St, Tyler, TX 75701. The listed phone number is (903) 606-5956.

What is William Stigall's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Critical Care Medicine, with taxonomy code 2080P0203X.

Is William Stigall enrolled in Medicare?

Yes. William Stigall is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for William Stigall's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Stigall reassigns Medicare benefits to Cook Children's Physician Network (Fort Worth, TX). The 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 William Stigall's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Stigall accept?

Health plans from Imperial Insurance Companies, Inc. list William Stigall 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 William Stigall was last updated on October 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 days 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.