Huy Nguyen, MD
NPI 1851514640 · Cardiovascular Disease Physician · Mission Viejo, CA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Huy Nguyen, MD is a Cardiovascular Disease Physician provider in Mission Viejo, CA (NPI 1851514640).
Provider details
- NPI number
- 1851514640
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A89993 (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
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
2,669 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 510 | $8 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 478 | $141 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 291 | $17 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 212 | $225 |
| Evaluation of Cardiac Rhythm Monitor System, Remote Up to 30 Days93298 | 193 | $26 |
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 |
|---|---|---|
| Metoprolol Succinate | 291 | 86 |
| Rosuvastatin Calcium | 269 | 100 |
| Apixabanbrand: Eliquis | 256 | 70 |
| Losartan Potassium | 230 | 64 |
| Carvedilol | 197 | 69 |
| Atorvastatin Calcium | 179 | 53 |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,277 across 60 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
- 2007-04-10
- Last updated
- 2015-07-20
Frequently asked questions
- What is Huy Nguyen's NPI number?
- Huy Nguyen's National Provider Identifier (NPI) is 1851514640, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Huy Nguyen's specialty?
- Huy Nguyen is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Huy Nguyen located?
- Huy Nguyen's practice location on file with NPPES is 27800 Medical Center Rd, Mission Viejo, CA 92691-6410.
- What is Huy Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Huy Nguyen is (949) 276-2446.
- Does Huy Nguyen accept Medicare?
- Huy Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Huy Nguyen's NPI active?
- Yes — Huy Nguyen's NPI (1851514640) is active in the NPPES registry as of the last update on 2015-07-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.