TRUNG HIEU NGUYEN MD
NPI 1932307766
Internal Medicine in Marshall, TX
About Trung Hieu Nguyen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TRUNG HIEU NGUYEN MD (NPI 1932307766) is an individual internal medicine provider in Marshall, Texas, licensed in Texas (N6537) and active in the NPI registry since July 2007. He is enrolled in Medicare PECOS, is affiliated with Willis Knighton Medical Center, and is a graduate of Brody School Of Medicine At East Carolina University (2007).
NPPES Registry Identity
Specialties & Licenses
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
Trung Hieu Nguyen 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 Trung Nguyen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Longview, TX 75605
- Reassigned Medicare billing, Texas enrollment
Longview, TX 75601
- Reassigned Medicare billing, Texas enrollment
- 334 clinicians in this Medicare group
Tyler, TX 75702
- Reassigned Medicare billing, Texas enrollment
- 2,745 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 9
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Willis Knighton Medical Center
Acute Care Hospitals · Shreveport, LAChristus Good Shepherd Medical Center
Acute Care Hospitals · Longview, TXUt Health East Texas Tyler Regional Hospital
Acute Care Hospitals · Tyler, TXChristus Mother Frances Hospital
Acute Care Hospitals · Tyler, TXLongview Regional Medical Center
Acute Care Hospitals · Longview, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 75670 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 8
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 18
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MARSHALL, TX 75670
MARSHALL, TX 75670
MARSHALL, TX 75670
MARSHALL, TX 75670
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 Trung Nguyen's NPI number?
The NPI number for Trung Nguyen is 1932307766. It was assigned to this individual provider in the NPPES registry on July 3, 2007.
Where is Trung Nguyen located?
Trung Nguyen practices at 811 S Washington Ave, Marshall, TX 75670. The listed phone number is (903) 315-1488.
What is Trung Nguyen's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Trung Nguyen enrolled in Medicare?
Yes. Trung 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 organizations bill Medicare for Trung Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Trung Nguyen reassigns Medicare benefits to 3 organizations: Longview Internal Medicine Physicians PLLC (Longview, TX), North Texas Physician Services, PLLC (Longview, TX) and Christus Trinity Clinic Texas (Tyler, 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 Trung Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Trung Nguyen accept?
Health plans from Blue Cross and Blue Shield of Texas and CHRISTUS Health Plan list Trung 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 Trung Nguyen affiliated with any hospitals?
According to CMS data, Trung Nguyen is affiliated with Willis Knighton Medical Center, Christus Good Shepherd Medical Center, Ut Health East Texas Tyler Regional Hospital, Christus Mother Frances Hospital and Longview Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Trung Nguyen was last updated on January 2, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Trung Hieu Nguyen, MD · NPI 1932307766
Internal Medicine physician in Marshall, Texas. Individual provider, active in the CMS NPPES registry since July 3, 2007.
## Identity
- **NPI:** 1932307766 (Entity type: Individual)
- **Enumerated:** July 3, 2007
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** N6537 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 811 S WASHINGTON AVE, Marshall, TX 75670-5336
- **Phone:** (903) 315-1488 · **Fax:** (903) 315-1656
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Longview Internal Medicine Physicians PLLC (NPI 1346871902, Longview, TX); North Texas Physician Services, PLLC (NPI 1992586150, Longview, TX); Christus Trinity Clinic Texas (NPI 1285684225, Tyler, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Brody School Of Medicine At East Carolina University, class of 2007
## Record status
- **NPPES last updated:** January 2, 2014
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Source: [NPI Profile](https://npiprofile.com/npi/1932307766) · Data from the CMS NPPES public registry.