VIVIANNA WU DO
NPI 1891373981
Family Medicine in Round Rock, TX
About Vivianna Wu Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
VIVIANNA WU DO (NPI 1891373981) is an individual family medicine provider in Round Rock, Texas, licensed in Texas (U5839) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS, is affiliated with Baylor Scott & White Medical Center - Round Rock, and maintains a secondary practice location in Irving.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Vivianna Wu Do 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 Vivianna Wu reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Pflugerville, TX 78660
- Reassigned Medicare billing, Texas enrollment
- 2,795 clinicians in this Medicare group
Lakeway, TX 78734
- Reassigned Medicare billing, Texas enrollment
- 3,167 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.
Baylor Scott & White Medical Center - Round Rock
Acute Care Hospitals · Round Rock, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78665 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
ROUND ROCK, TX 78665
ROUND ROCK, TX 78665
ROUND ROCK, TX 78665
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 Vivianna Wu's NPI number?
The NPI number for Vivianna Wu is 1891373981. It was assigned to this individual provider in the NPPES registry on March 30, 2021.
Where is Vivianna Wu located?
Vivianna Wu practices at 425 University Blvd, Round Rock, TX 78665. The listed phone number is (512) 509-0200.
What is Vivianna Wu's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Vivianna Wu enrolled in Medicare?
Yes. Vivianna Wu 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 Vivianna Wu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Vivianna Wu reassigns Medicare benefits to 2 organizations: Scott & White Clinic (Pflugerville, TX) and Healthtexas Provider Network (Lakeway, 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 Vivianna Wu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Vivianna Wu accept?
Health plans from Blue Cross and Blue Shield of Texas list Vivianna Wu 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 Vivianna Wu affiliated with any hospitals?
According to CMS data, Vivianna Wu is affiliated with Baylor Scott & White Medical Center - Round Rock.
When was this NPI record last updated?
The NPPES record for Vivianna Wu was last updated on January 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Vivianna Wu, DO · NPI 1891373981
Family Medicine physician in Round Rock, Texas. Individual provider, active in the CMS NPPES registry since March 30, 2021.
## Identity
- **NPI:** 1891373981 (Entity type: Individual)
- **Enumerated:** March 30, 2021
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** U5839 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 425 UNIVERSITY BLVD, Round Rock, TX 78665-1360
- **Phone:** (512) 509-0200
## 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): Scott & White Clinic (NPI 1679691729, Pflugerville, TX); Healthtexas Provider Network (NPI 1689512493, Lakeway, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Alabama College Of Osteopathic Medicine, class of 2021
## Record status
- **NPPES last updated:** January 21, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1891373981) · Data from the CMS NPPES public registry.