DUDLEY BYRON HOLT MD
NPI 1043438450
Pediatrics - Pediatric Cardiology in Austin, TX
About Dudley Byron Holt Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DUDLEY BYRON HOLT MD (NPI 1043438450) is an individual pediatric cardiology provider in Austin, Texas, licensed in Texas (M6196) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS, is affiliated with Dell Children's Medical Center, and is a graduate of University Of Texas Medical School At San Antonio (2000).
NPPES Registry Identity
Specialties & Licenses
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
Dudley Byron Holt 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.
Medicare Billing Reassignments
2Medicare enrollment records show Dudley Holt reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Austin, TX 78723
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: Dell Childrens Medical Group
- 576 clinicians in this Medicare group
Round Rock, TX 78681
- Reassigned Medicare billing, Texas enrollment
- 432 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Dell Children's Medical Center
Childrens · Austin, TXOther Providers at the Same Location NPPES 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Dudley Holt's NPI number?
The NPI number for Dudley Holt is 1043438450. It was assigned to this individual provider in the NPPES registry on April 23, 2007.
Where is Dudley Holt located?
Dudley Holt practices at 1110 E 32nd St, Austin, TX 78722. The listed phone number is (512) 320-8388.
What is Dudley Holt's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Cardiology, with taxonomy code 2080P0202X.
Is Dudley Holt enrolled in Medicare?
Yes. Dudley Holt 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 organizations bill Medicare for Dudley Holt's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Dudley Holt reassigns Medicare benefits to 2 organizations: Dell Children's Medical Group (Austin, TX) and Magella Medical Associates Billing, Inc. (Round Rock, 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 Dudley Holt's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Dudley Holt accept?
Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 6 other insurers list Dudley Holt 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.
Is Dudley Holt affiliated with any hospitals?
According to CMS data, Dudley Holt is affiliated with Dell Children's Medical Center.
When was this NPI record last updated?
The NPPES record for Dudley Holt was last updated on October 27, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Dudley Byron Holt, MD · NPI 1043438450
Pediatric Cardiology physician in Austin, Texas. Individual provider, active in the CMS NPPES registry since April 23, 2007.
## Identity
- **NPI:** 1043438450 (Entity type: Individual)
- **Enumerated:** April 23, 2007
- **Primary specialty:** Pediatrics - Pediatric Cardiology · taxonomy 2080P0202X
- **State license:** M6196 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 1110 E 32ND ST, Austin, TX 78722-2211
- **Phone:** (512) 320-8388 · **Fax:** (512) 320-8398
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Dell Children's Medical Group (NPI 1326072943, Austin, TX); Magella Medical Associates Billing, Inc. (NPI 1083631071, Round Rock, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Texas Medical School At San Antonio, class of 2000
## Record status
- **NPPES last updated:** October 27, 2010
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Source: [NPI Profile](https://npiprofile.com/npi/1043438450) · Data from the CMS NPPES public registry.