Hoa Nguyen, M.D.
NPI 1427285394 · Internal Medicine Physician · Irvine, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hoa Nguyen, M.D. is a Internal Medicine Physician provider in Irvine, CA (NPI 1427285394).
Provider details
- NPI number
- 1427285394
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A118305 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
17 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Furosemide | 61 |
| Pantoprazole Sodium | 42 |
| Gabapentin | 42 |
| Atorvastatin Calcium | 37 |
| Montelukast Sodium | 33 |
| Levothyroxine Sodium | 30 |
| Amlodipine Besylate | 24 |
| Spironolactone | 23 |
| Omeprazole |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$147 across 2 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
Additional practice locations (1)
- 18173 Santa Adela CirFountain Valley, CA 92708-5608Phone: (562) 412-8863Fax: (562) 412-8863
Registry dates
- Enumerated
- 2009-06-17
- Last updated
- 2023-06-29
- Certified
- 2023-06-29
Frequently asked questions
- What is Hoa Nguyen's NPI number?
- Hoa Nguyen's National Provider Identifier (NPI) is 1427285394, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hoa Nguyen's specialty?
- Hoa Nguyen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Hoa Nguyen located?
- Hoa Nguyen's practice location on file with NPPES is 16100 Sand Canyon Ave Ste 240, Irvine, CA 92618-3724.
- What is Hoa Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Hoa Nguyen is (949) 393-7443.
- Does Hoa Nguyen accept Medicare?
- Hoa Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hoa Nguyen's NPI active?
- Yes — Hoa Nguyen's NPI (1427285394) is active in the NPPES registry as of the last update on 2023-06-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.