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TERESA TRANG NGUYEN D.C., L. AC. NP
NPI 1831336593
Nurse Practitioner - Primary Care in Wilmington, CA

Active since January 15, 2009PECOS Enrolled
803 FIGUEROA ST, WILMINGTON, CA 90744(310) 830-0863 Get Directions Write a Review

NPPES record last updated: October 23, 2017. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Teresa Trang Nguyen D.c., L. Ac. Np NPPES

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

TERESA TRANG NGUYEN D.C., L. AC. NP (NPI 1831336593) is an individual primary care provider in Wilmington, California, licensed in California (NP95000667) and active in the NPI registry since January 2009. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1831336593
Entity TypeIndividualFemale
Primary Taxonomy363LP2300X
Provider Legal NameTERESA TRANG NGUYENCredential: D.C., L. AC. NP
Location Address803 FIGUEROA STWilmington, CA 90744-2300
Mailing Address803 Figueroa StWilmington, CA 90744-2300 · (310) 830-0863
Phone(310) 830-0863
Sole ProprietorNo
Enumeration DateJanuary 15, 2009
Last NPPES UpdateOctober 23, 2017
✔ NPI 1831336593 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyNurse Practitioner · Primary CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP2300X
License✔ Licensed in CA · NP95000667
Also ListedChiropractorTaxonomy 111N00000X · License DC27500 (CA)
Also ListedAcupuncturistTaxonomy 171100000X · License 8980 (CA)
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License NP95000667 (CA)
803 FIGUEROA ST, Wilmington, CA 90744
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Teresa Trang Nguyen D.c., L. Ac. Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Teresa Nguyen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Dao Medical Group Inc
18 mi
Internal Medicine
9191 WESTMINSTER AVE
Garden Grove, CA 92844
  • Reassigned Medicare billing, California enrollment
  • 22 clinicians in this Medicare group
NPI 1073957239 (714) 899-2000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90744 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

HARBOR COMPREHENSIVE HEALTH INC
General Practice
803 FIGUEROA ST
WILMINGTON, CA 90744
Los Angeles County (310) 830-0863
CANNON CHIROPRACTIC GROUP DBA COLLINS CHIROPRACTIC GROUP
Chiropractor
803 FIGUEROA ST
WILMINGTON, CA 90744
Los Angeles County (310) 830-0863
LUIS A GONZALEZ CHIROPRACTIC INC
Chiropractor
803 FIGUEROA ST
WILMINGTON, CA 90744
Los Angeles County (310) 830-0863
INTEGRATED WOUND CARE AND SUPPORT SERVICES
General Practice
803 FIGUEROA ST
WILMINGTON, CA 90744
Los Angeles County (310) 830-0863
BRIDGET JEMISON PHYSICIAN ASSISTANT
Physician Assistant
803 FIGUEROA ST
WILMINGTON, CA 90744
Los Angeles County (310) 803-0863
DR. TIMOTHY ALLEN GALLO D.C.
Chiropractor
803 FIGUEROA ST
WILMINGTON, CA 90744
Los Angeles County (310) 830-0863
DR. TIMOTHY CORNELIUS COLLINS NP-C, DC
Nurse Practitioner (Family)
803 FIGUEROA ST
WILMINGTON, CA 90744
Los Angeles County (310) 830-0863

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 1831336593. It was assigned to this individual provider in the NPPES registry on January 15, 2009.

Where is Teresa Nguyen located?

Teresa Nguyen practices at 803 Figueroa St, Wilmington, CA 90744. The listed phone number is (310) 830-0863.

What is Teresa Nguyen's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Primary Care, with taxonomy code 363LP2300X.

Is Teresa Nguyen enrolled in Medicare?

Yes. Teresa Nguyen is registered in the Medicare PECOS enrollment system.

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 Dao Medical Group Inc (Garden Grove, CA). 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.

When was this NPI record last updated?

The NPPES record for Teresa Nguyen was last updated on October 23, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.