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TERESA THUY NGUYEN CAA
NPI 1821837964
Anesthesiologist Assistant in Dallas, TX

Active since May 20, 2024Accepts 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: May 20, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Teresa Thuy Nguyen Caa NPPES

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

TERESA THUY NGUYEN CAA (NPI 1821837964) is an individual anesthesiologist assistant in Dallas, Texas and active in the NPI registry since May 2024. She is affiliated with Memorial Hermann - Texas Medical Center and is a graduate of Other (2024).

NPPES Registry Identity

NPI1821837964
Entity TypeIndividualFemale
Primary Taxonomy367H00000X
Provider Legal NameTERESA THUY NGUYENCredential: CAA
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 CMSOtherGraduated 2024
Enumeration DateMay 20, 2024
NPPES CertifiedMay 20, 2024
✔ NPI 1821837964 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologist AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367H00000X
Definition
An individual certified by the state to perform anesthesia services under the direct supervision of an anesthesiologist. Anesthesiologist Assistants are required to have a bachelor's degree with a premed curriculum prior to entering a two-year anesthesiology assistant program, which is focused upon the delivery and maintenance of anesthesia care as well as advanced patient monitoring techniques. An Anesthesiologist Assistant must work as a member of the anesthesia care team under the direction of a qualified Anesthesiologist.
12222 MERIT DR STE 600, Dallas, TX 75251
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Oscar Insurance Company.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

Teresa Thuy Nguyen Caa 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 ID6608302039
PECOS Enrollment IDI20241209004105

Medicare Billing Reassignment

Medicare enrollment records show Teresa Nguyen 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.

Areas of Expertise CMS Part B claims

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.

Anesthesia for lens surgery 00142
Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.
20 services18 patients

Hospital Affiliations CMS Care Compare 3

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

Memorial Hermann - Texas Medical Center

Acute Care Hospitals · Houston, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450068
Location6411 FanninHouston, TX 77030 · Harris County
Emergency services Birthing friendly

Memorial Hermann Hospital System

Acute Care Hospitals · Houston, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450184
Location1635 North Loop WestHouston, TX 77008 · Harris County
Emergency services Birthing friendly

Memorial Hermann Sugar Land Hospital

Acute Care Hospitals · Sugar Land, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450848
Location17500 W Grand Parkway SouthSugar Land, TX 77479 · Fort Bend County
Emergency services Birthing friendly

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 Teresa Nguyen's NPI number?

The NPI number for Teresa Nguyen is 1821837964. It was assigned to this individual provider in the NPPES registry on May 20, 2024.

Where is Teresa Nguyen located?

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

What is Teresa Nguyen's specialty?

The primary specialty registered for this NPI is Anesthesiologist Assistant with taxonomy code 367H00000X.

Is Teresa Nguyen enrolled in Medicare?

Yes. Teresa Nguyen 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 Teresa Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Teresa Nguyen 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 Teresa Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Teresa Nguyen accept?

Health plans from Blue Cross and Blue Shield of Texas and Oscar Insurance Company list Teresa Nguyen 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 Teresa Nguyen affiliated with any hospitals?

According to CMS data, Teresa Nguyen is affiliated with Memorial Hermann - Texas Medical Center, Memorial Hermann Hospital System and Memorial Hermann Sugar Land Hospital.

When was this NPI record last updated?

The NPPES record for Teresa Nguyen was last updated on May 20, 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.