DR. MINH THU THI NGUYEN MD
NPI 1629633474
Internal Medicine - Gastroenterology in San Marcos, TX

Q: What is Minh Thu Nguyen's NPI number?

The NPI number for Minh Thu Nguyen is 1629633474. It was assigned to this individual provider in the NPPES registry on May 7, 2019. The provider is also known as Minh Thi Nguyen MD.

Q: What is Minh Thu Nguyen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Minh Thu Nguyen was last updated on July 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.

Active since May 07, 2019PECOS EnrolledAccepts Medicare Assignment

1305 WONDER WORLD DR STE 200, SAN MARCOS, TX 78666(512) 754-8676(512) 371-6891 Get Directions Write a Review

NPPES record last updated: July 18, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 5, 2023, May 7, 2022, May 7, 2019 (3 updates tracked since 2019).

On this page

About Dr. Minh Thu Thi Nguyen Md NPPES

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

DR. MINH THU THI NGUYEN MD (NPI 1629633474) is an individual gastroenterology provider in San Marcos, Texas, licensed in Texas (V5315) and active in the NPI registry since May 2019. She is enrolled in Medicare PECOS, is affiliated with Christus Santa Rosa Hospital-san Marcos, and is a graduate of University Of Texas Medical Branch At Galveston (2019).

NPPES Registry Identity

NPI1629633474

Entity TypeIndividualFemale

Primary Taxonomy207RG0100X

Provider Legal NameDR. MINH THU THI NGUYENCredential: MD

Location Address1305 WONDER WORLD DR STE 200San Marcos, TX 78666-7502

Mailing Address950 E State Highway 114 Ste 200Southlake, TX 76092-5261 · (214) 424-2200 · Fax (214) 231-2159

Phone(512) 754-8676

Fax(512) 371-6891

Sole ProprietorNo

Medical School CMSUniversity Of Texas Medical Branch At GalvestonGraduated 2019

Enumeration DateMay 7, 2019

Last NPPES UpdateJuly 18, 20253 updates tracked since enumeration

NPPES CertifiedJuly 18, 2025

✔ NPI 1629633474 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in TX · V5315

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

1305 WONDER WORLD DR STE 200, San Marcos, TX 78666

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Other Names 1

Other Name (5)Minh Thi Nguyen Md

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections 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

Dr. Minh Thu Thi 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.

PECOS PAC ID3476889106

PECOS Enrollment IDI20250724002399

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 Reassignments

Medicare enrollment records show Minh Thu Nguyen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Austin Gastroenterology, PLLC

38 mi

Gastroenterology

9211 WATERFORD CENTRE BLVD, STE 200
Austin, TX 78758

Reassigned Medicare billing, Texas enrollment
85 clinicians in this Medicare group

NPI 1316998016 (512) 485-5872

Texas Digestive Disease Consultants, PLLC

153 mi

Gastroenterology

4100 S SHEPHERD DR
Houston, TX 77098

Reassigned Medicare billing, Texas enrollment
575 clinicians in this Medicare group

NPI 1013429968 (832) 255-5681

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

82 services47 patients

Hospital Affiliations CMS Care Compare 2

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

Christus Santa Rosa Hospital-San Marcos

Acute Care Hospitals · San Marcos, TX

2/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number450272

Location1301 Wonder World DriveSan Marcos, TX 78666 · Hays County

Emergency services Birthing friendly

Resolute Health Hospital

Acute Care Hospitals · New Braunfels, TX

3/5 CMS rating

OwnershipProprietary

CMS Certification Number670098

Location555 Creekside Xing,New Braunfels, TX 78130 · Comal County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78666 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

$126.40 typical visit price

range $54.84 – $166.88

Typical copayment $31.60 (range $13.71 – $41.72)

Most-billed visit code 99204

Established Patient

$97.05 typical visit price

range $17.52 – $136.11

Typical copayment $24.26 (range $4.38 – $34.02)

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 2

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

BIANCA BLACKSTONE

Nurse Practitioner

1305 WONDER WORLD DR STE 200
SAN MARCOS, TX 78666

Hays County (512) 754-8676

DR. ANITA BHAGAVATHULA DO

Internal Medicine (Gastroenterology)

1305 WONDER WORLD DR STE 200
SAN MARCOS, TX 78666

Hays County (512) 754-8676

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 Minh Thu Nguyen's NPI number?

The NPI number for Minh Thu Nguyen is 1629633474. It was assigned to this individual provider in the NPPES registry on May 7, 2019. The provider is also known as Minh Thi Nguyen MD.

Where is Minh Thu Nguyen located?

Minh Thu Nguyen practices at 1305 Wonder World Dr Ste 200, San Marcos, TX 78666. The listed phone number is (512) 754-8676.

What is Minh Thu Nguyen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Minh Thu Nguyen enrolled in Medicare?

Yes. Minh Thu 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 Minh Thu Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Minh Thu Nguyen reassigns Medicare benefits to 2 organizations: Austin Gastroenterology, PLLC (Austin, TX) and Texas Digestive Disease Consultants, PLLC (Houston, 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 Minh Thu Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Minh Thu Nguyen accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 5 other insurers list Minh Thu 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 Minh Thu Nguyen affiliated with any hospitals?

According to CMS data, Minh Thu Nguyen is affiliated with Christus Santa Rosa Hospital-San Marcos and Resolute Health Hospital.

When was this NPI record last updated?

The NPPES record for Minh Thu Nguyen was last updated on July 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.