DR. RYAN A STEWART MD
NPI 1457564064
Pediatrics - Pediatric Endocrinology in Dallas, TX

Active since May 08, 2007PECOS Enrolled
5323 HARRY HINES BOULEVARD, DALLAS, TX 75390(214) 648-3501(214) 645-0078 Get Directions Write a Review

NPPES record last updated: September 29, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Ryan A Stewart Md NPPES

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

DR. RYAN A STEWART MD (NPI 1457564064) is an individual pediatric endocrinology provider in Dallas, Texas, licensed in Texas (M3398) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1457564064
Entity TypeIndividualMale
Primary Taxonomy2080P0205X
Provider Legal NameDR. RYAN A STEWARTCredential: MD
Location Address5323 HARRY HINES BOULEVARDDallas, TX 75390-7208
Mailing AddressP.o. Box 845347Dallas, TX 75284-5347 · (214) 648-3501 · Fax (214) 645-0078
Fax(214) 645-0078
Sole ProprietorNo
Enumeration DateMay 8, 2007
Last NPPES UpdateSeptember 29, 2022
NPPES CertifiedSeptember 29, 2022
✔ NPI 1457564064 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric EndocrinologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0205X
License✔ Licensed in TX · M3398
Definition
A pediatrician who provides expert care to infants, children and adolescents who have diseases that result from an abnormality in the endocrine glands (glands which secrete hormones). These diseases include diabetes mellitus, growth failure, unusual size for age, early or late pubertal development, birth defects, the genital region and disorders of the thyroid, the adrenal and pituitary glands.
Also ListedPediatricsTaxonomy 208000000X · License M3398 (TX)
5323 HARRY HINES BOULEVARD, Dallas, TX 75390

Other Identifiers 1

OtherBBW645TX · Bcbs

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Ryan A Stewart Md 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

2

Medicare enrollment records show Ryan Stewart reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Orthopaedic Surgery
5323 HARRY HINES BLVD
Dallas, TX 75390
  • Reassigned Medicare billing, Texas enrollment
  • 5,299 clinicians in this Medicare group
Pediatrics
6621 FANNIN ST
Houston, TX 77030
  • Reassigned Medicare billing, Texas enrollment
  • Medicare enrollment name: Texas Childrens Physician Group
  • 2,498 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75390 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$131.01 typical visit price
range $57.18 – $172.86
Typical copayment $32.75 (range $14.29 – $43.21)
Most-billed visit code 99204
Established Patient
$100.80 typical visit price
range $18.48 – $141.20
Typical copayment $25.20 (range $4.62 – $35.30)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Emergency Medicine
5323 HARRY HINES BOULEVARD
DALLAS, TX 75390
Audiologist
5323 HARRY HINES BOULEVARD
DALLAS, TX 75390
Nurse Practitioner (Family)
5323 HARRY HINES BOULEVARD
DALLAS, TX 75390
Student in an Organized Health Care Education/Training Program
5323 HARRY HINES BOULEVARD
DALLAS, TX 75390
Student in an Organized Health Care Education/Training Program
5323 HARRY HINES BOULEVARD
DALLAS, TX 75390
Radiology (Diagnostic Radiology)
5323 HARRY HINES BOULEVARD
DALLAS, TX 75390
Pediatrics (Pediatric Cardiology)
5323 HARRY HINES BOULEVARD
DALLAS, TX 75390
Internal Medicine (Endocrinology, Diabetes & Metabolism)
5323 HARRY HINES BOULEVARD
DALLAS, TX 75390

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 Ryan Stewart's NPI number?

The NPI number for Ryan Stewart is 1457564064. It was assigned to this individual provider in the NPPES registry on May 8, 2007.

Where is Ryan Stewart located?

Ryan Stewart practices at 5323 Harry Hines Boulevard, Dallas, TX 75390. The listed phone number is (214) 648-3501.

What is Ryan Stewart's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Endocrinology, with taxonomy code 2080P0205X.

Is Ryan Stewart enrolled in Medicare?

Yes. Ryan Stewart is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Ryan Stewart's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ryan Stewart reassigns Medicare benefits to 2 organizations: University Of Texas Southwestern Medical Center At Dallas (Dallas, TX) and Texas Children's Physician Group (Houston, TX). 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 Ryan Stewart's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ryan Stewart accept?

Health plans from Baylor Scott and White Health Plan, Harbor Health and Sendero Health Plans, Local Nonprofit list Ryan Stewart 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 Ryan Stewart was last updated on September 29, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.