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VIVIAN CHANG YEN-XU MD
NPI 1891324463
Anesthesiology in Dallas, TX

Active since April 06, 2020PECOS EnrolledAccepts Medicare Assignment
12222 MERIT DR STE 600, DALLAS, TX 75251(972) 715-5000(972) 715-9976 Get Directions Write a Review

NPPES record last updated: November 6, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 6, 2025, Apr 6, 2020 (2 updates tracked since 2020).

About Vivian Chang Yen-xu Md NPPES

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

VIVIAN CHANG YEN-XU MD (NPI 1891324463) is an individual anesthesiology provider in Dallas, Texas, licensed in Texas (U7087) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS, is affiliated with Medical City Denton, and maintains a secondary practice location in Dallas.

NPPES Registry Identity

NPI1891324463
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameVIVIAN CHANG YEN-XUCredential: MD
Location Address12222 MERIT DR STE 600Dallas, TX 75251-3294
Mailing AddressPo Box 840853Dallas, TX 75284-0853 · (972) 233-1999 · Fax (972) 233-3666
Phone(972) 715-5000
Fax(972) 715-9976
Sole ProprietorNo
Medical School CMSWake Forest University School Of MedicineGraduated 2020
Enumeration DateApril 6, 2020
Last NPPES UpdateNovember 6, 20252 updates tracked since enumeration
NPPES CertifiedNovember 6, 2025
✔ NPI 1891324463 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in TX · U7087
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
12222 MERIT DR STE 600, Dallas, TX 75251
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Other Names 1

Former Name (1)Vivian Chang Xu Md

Secondary Practice Location 1

Location 15323 Harry Hines BlvdDallas, TX 75390-7201 · Phone (336) 688-0069

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Molina Healthcare and more.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

Vivian Chang Yen-xu 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 ID2163913047
PECOS Enrollment IDI20251118005110
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 Vivian Yen-xu reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

U. S. Anesthesia Partners Of Texas, P.A.,
230 mi
Anesthesiology
1500 CITYWEST BLVD, SUITE 300
Houston, TX 77042
  • Reassigned Medicare billing, Texas enrollment
  • Medicare enrollment name: U S Anesthesia Partners Of Texas, PA
  • 3,804 clinicians in this Medicare group
NPI 1548208564 (877) 361-1809

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 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Medical City Denton

Acute Care Hospitals · Denton, TX
4/5 CMS rating
OwnershipProprietary
CMS Certification Number450634
Location3535 South I35 EastDenton, TX 76210 · Denton County
Emergency services

Medical City Dallas Hospital

Acute Care Hospitals · Dallas, TX
3/5 CMS rating
OwnershipProprietary
CMS Certification Number450647
Location7777 Forest LaneDallas, TX 75230 · Dallas County
Emergency services Birthing friendly

Baylor Scott & White Medical Center Plano

Acute Care Hospitals · Plano, TX
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number450890
Location4700 Alliance BoulevardPlano, TX 75093 · Collin County
Emergency services

The Heart Hospital Baylor Denton

Acute Care Hospitals · Denton, TX
5/5 CMS rating
OwnershipPhysician
CMS Certification Number450893
Location2801 South Mayhill RoadDenton, TX 76208 · Denton County
Emergency services

Baylor Scott & White The Heart Hospital - Plano

Acute Care Hospitals · Plano, TX
5/5 CMS rating
OwnershipProprietary
CMS Certification Number670025
Location1100 Allied DrivePlano, TX 75093 · Collin County
Emergency services

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.

MRS. CHARITY CABRERA MAGCALAS CRNA
Nurse Anesthetist, Certified Registered
12222 MERIT DR STE 600
DALLAS, TX 75251
Dallas County (972) 715-5000
DR. ELVIS TSANG MD
Anesthesiology
12222 MERIT DR STE 600
DALLAS, TX 75251
Dallas County (972) 715-5000
BINU RAJAN ABRAHAM MD
Anesthesiology
12222 MERIT DR STE 600
DALLAS, TX 75251
Dallas County (972) 715-5000
LAUREN CARTER SEGERSON CRNA
Nurse Anesthetist, Certified Registered
12222 MERIT DR STE 600
DALLAS, TX 75251
Dallas County (972) 715-5000
SARAH KATHARINA JUNGNITSCH
Nurse Anesthetist, Certified Registered
12222 MERIT DR STE 600
DALLAS, TX 75251
Dallas County (972) 715-5000
ABIGAIL PINTO WOOD CRNA
Nurse Anesthetist, Certified Registered
12222 MERIT DR STE 600
DALLAS, TX 75251
Dallas County (972) 715-5000
HANNAH NEIPP MURDOCK CRNA
Nurse Anesthetist, Certified Registered
12222 MERIT DR STE 600
DALLAS, TX 75251
Dallas County (972) 715-5000
THOMAS ADAMS MD
Anesthesiology
12222 MERIT DR STE 600
DALLAS, TX 75251
Dallas County (972) 715-5000

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 Vivian Yen-xu's NPI number?

The NPI number for Vivian Yen-xu is 1891324463. It was assigned to this individual provider in the NPPES registry on April 6, 2020. The provider is also known as Vivian Chang Xu MD.

Where is Vivian Yen-xu located?

Vivian Yen-xu practices at 12222 Merit Dr Ste 600, Dallas, TX 75251. The listed phone number is (972) 715-5000.

What is Vivian Yen-xu's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Vivian Yen-xu enrolled in Medicare?

Yes. Vivian Yen-xu 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 Vivian Yen-xu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Vivian Yen-xu reassigns Medicare benefits to U. S. Anesthesia Partners Of Texas, P.A., (Houston, 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 Vivian Yen-xu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Vivian Yen-xu accept?

Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Molina Healthcare and Oscar Insurance Company list Vivian Yen-xu 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 Vivian Yen-xu affiliated with any hospitals?

According to CMS data, Vivian Yen-xu is affiliated with Medical City Denton, Medical City Dallas Hospital, Baylor Scott & White Medical Center Plano, The Heart Hospital Baylor Denton and Baylor Scott & White The Heart Hospital - Plano.

When was this NPI record last updated?

The NPPES record for Vivian Yen-xu was last updated on November 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.