Ngai Nguyen, MD
NPI 1205883501 · Cardiovascular Disease Physician · San Jose, CA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ngai Nguyen, MD is a Cardiovascular Disease Physician provider in San Jose, CA (NPI 1205883501).
Provider details
- NPI number
- 1205883501
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A390570 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
2,500 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 998 | $164 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 351 | $117 |
| Technetium Tc-99m Sestamibi, Diagnostic, Per Study DoseA9500 | 286 | $84 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 157 | $274 |
| Nuclear Medicine Studies of Heart Muscle at Rest and With Stress and Spect78452 | 143 | $625 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Supervision and Review By Physician |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 77 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 489 | 201 |
| Metoprolol Succinate | 445 | 167 |
| Amlodipine Besylate | 335 | 139 |
| Atorvastatin Calcium | 255 | 107 |
| Apixabanbrand: Eliquis | 230 | 60 |
| Icosapent Ethylbrand: Vascepa | 207 | 80 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$446 across 10 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
- 2006-05-30
- Last updated
- 2025-09-23
- Certified
- 2025-09-23
Frequently asked questions
- What is Ngai Nguyen's NPI number?
- Ngai Nguyen's National Provider Identifier (NPI) is 1205883501, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ngai Nguyen's specialty?
- Ngai Nguyen is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Ngai Nguyen located?
- Ngai Nguyen's practice location on file with NPPES is 696 E Santa Clara St, San Jose, CA 95112-1911.
- What is Ngai Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Ngai Nguyen is (408) 971-8441.
- Does Ngai Nguyen accept Medicare?
- Ngai Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ngai Nguyen's NPI active?
- Yes — Ngai Nguyen's NPI (1205883501) is active in the NPPES registry as of the last update on 2025-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.