Loi Nguyen, MD
NPI 1275528481 · Cardiovascular Disease Physician · Houston, TX
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Loi Nguyen, MD is a Cardiovascular Disease Physician provider in Houston, TX (NPI 1275528481).
Provider details
- NPI number
- 1275528481
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- H3275 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
977 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 374 | $91 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 346 | $14 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 75 | $195 |
| Ultrasound of Both Sides of Head and Neck Blood Flow93880 | 74 | $189 |
| Ultrasound of Heart Blood Flow, Valves and Chambers93320 | 28 | $50 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate and Valve Function93325 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ranolazinebrand: Ranolazine Er | 506 | 161 |
| Carvedilol | 480 | 152 |
| Atorvastatin Calcium | 321 | 120 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 272 | 88 |
| Losartan Potassium | 243 | 89 |
| Isosorbide Mononitratebrand: Isosorbide Mononitrate Er | 216 | 69 |
| Icosapent Ethyl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-14
- Last updated
- 2015-04-11
Frequently asked questions
- What is Loi Nguyen's NPI number?
- Loi Nguyen's National Provider Identifier (NPI) is 1275528481, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Loi Nguyen's specialty?
- Loi Nguyen is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Loi Nguyen located?
- Loi Nguyen's practice location on file with NPPES is 12168 Bellaire Blvd Ste 108, Houston, TX 77072-2644.
- What is Loi Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Loi Nguyen is (281) 988-6462.
- Does Loi Nguyen accept Medicare?
- Loi Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Loi Nguyen's NPI active?
- Yes — Loi Nguyen's NPI (1275528481) is active in the NPPES registry as of the last update on 2015-04-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.