Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Thuan K. Nguyen, MD

Works at hospitals in Tomball, TX · Cypress, TX · Houston, TX · Texas

Summary

Dr. Thuan K. Nguyen, MD is an internal medicine doctor at 12609 Louetta Rd, Cypress, TX 77429. Phone: (281) 655-5100. Accepts Medicare assignment. In 2024, Thuan K. Nguyen had 549 Original Medicare patients and 3,939 services. NPI 1841206703. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Thuan K. Nguyen, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Thuan K. Nguyen accept Medicare assignment?
Yes. Medicare's clinician data says Thuan K. Nguyen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Thuan K. Nguyen see?
In 2024, CMS data shows 549 Original Medicare patients and 3,939 services for Thuan K. Nguyen. This counts Original Medicare only and measures volume, not quality.
What is Thuan K. Nguyen's NPI number?
1841206703. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Thuan K. Nguyen, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients549
Services billed to Medicare3,939
Different services or procedures44
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Injection, methylprednisolone acetate, 1 mg (J1010)780 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)670 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)626 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)280 services
  5. Annual depression screening, 5 to 15 minutes (G0444)268 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis45%
  • Diabetes40%
  • Ischemic heart disease34%
  • Chronic kidney disease30%

Hospitals where Thuan K. Nguyen works

Medicare's Facility Affiliation Data lists Thuan K. Nguyen at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Thuan K. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Thuan K. Nguyen as a member of this group (CMS data updated October 2, 2026).

  • St Michael Medical Clinic P A3 clinicians in the group

Specialties

Find other Internal Medicine doctors in Texas →

Other internal medicine doctors in Cypress

Clinicians with the same Medicare primary specialty in Cypress, TX — not a recommendation.

All internal medicine doctors in Cypress →

Other clinicians in St Michael Medical Clinic P A

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Medical School At Houston
Graduation year1995 (31 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1841206703
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians