Thuan Nguyen, MD
NPI 1659421535 · Specialist · Houston, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thuan Nguyen, MD is a Specialist provider in Houston, TX (NPI 1659421535).
Provider details
- NPI number
- 1659421535
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- J2237 (TX)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
501 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 181 | $91 |
| Complete Ultrasound Scan of Abdomen76700 | 128 | $116 |
| Diagnostic Exam of Anus Using an Endoscope46600 | 67 | $117 |
| Removal of External Hemorrhoids By Rubber Banding46221 | 53 | $285 |
| Measurement of Hydrogen in Breath to Test for Stomach and Bowel Symptoms91065 | 38 | $73 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 21 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Famotidine | 100 | 40 |
| Tenofovir Alafenamidebrand: Vemlidy | 96 | — |
| Linaclotidebrand: Linzess | 69 | 26 |
| Pantoprazole Sodium | 40 | 22 |
| Omeprazole | 31 | — |
| Metoclopramide Hcl | 29 | — |
| Dexlansoprazolebrand: Dexlansoprazole Dr | 28 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$19,219 across 47 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-11
- Last updated
- 2007-07-08
Frequently asked questions
- What is Thuan Nguyen's NPI number?
- Thuan Nguyen's National Provider Identifier (NPI) is 1659421535, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thuan Nguyen's specialty?
- Thuan Nguyen is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Thuan Nguyen located?
- Thuan Nguyen's practice location on file with NPPES is 12060 Bellaire Blvd, Houston, TX 77072-2569.
- What is Thuan Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Thuan Nguyen is (281) 983-0205.
- Does Thuan Nguyen accept Medicare?
- Thuan Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thuan Nguyen's NPI active?
- Yes — Thuan Nguyen's NPI (1659421535) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.