DR. BRENDAN P DEWAN MD
NPI 1134445539
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Austin, TX
About Dr. Brendan P Dewan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BRENDAN P DEWAN MD (NPI 1134445539) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Austin, Texas, licensed in Texas (R0384) and active in the NPI registry since April 2010. He is enrolled in Medicare PECOS, is affiliated with St David's Medical Center, and maintains a secondary practice location in Dallas.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
Group Practice 1
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
Dr. Brendan P Dewan 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
3Medicare enrollment records show Brendan Dewan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Austin, TX 78756
- Reassigned Medicare billing, Texas enrollment
- 27 clinicians in this Medicare group
Austin, TX 78756
- Reassigned Medicare billing, Texas enrollment
- 197 clinicians in this Medicare group
Victoria, TX 77901
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: Citizens Medical Center County Of Victoria
- 171 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.
Areas of Expertise CMS Part B claims 11
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St David's Medical Center
Acute Care Hospitals · Austin, TXSt David's South Austin Medical Center
Acute Care Hospitals · Austin, TXNorth Austin Medical Center
Acute Care Hospitals · Austin, TXAscension Seton Southwest
Acute Care Hospitals · Austin, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78756 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
AUSTIN, TX 78756
AUSTIN, TX 78756
AUSTIN, TX 78756
AUSTIN, TX 78756
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 Brendan Dewan's NPI number?
The NPI number for Brendan Dewan is 1134445539. It was assigned to this individual provider in the NPPES registry on April 12, 2010.
Where is Brendan Dewan located?
Brendan Dewan practices at 1010 W 40th St, Austin, TX 78756. The listed phone number is (512) 459-8753.
What is Brendan Dewan's specialty?
The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.
Is Brendan Dewan enrolled in Medicare?
Yes. Brendan Dewan 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 Brendan Dewan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brendan Dewan reassigns Medicare benefits to 3 organizations: Cardiothoracic And Vascular Surgeons,pa (Austin, TX), St Davids Heart & Vascular, PLLC (Austin, TX) and Citizen's Medical Center County Of Victoria (Victoria, 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 Brendan Dewan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Brendan Dewan accept?
Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 7 other insurers list Brendan Dewan 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 Brendan Dewan affiliated with any hospitals?
According to CMS data, Brendan Dewan is affiliated with St David's Medical Center, St David's South Austin Medical Center, North Austin Medical Center and Ascension Seton Southwest.
When was this NPI record last updated?
The NPPES record for Brendan Dewan was last updated on July 19, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.