Duy Nguyen
NPI 1639788425 · Student in an Organized Health Care Education/Training Program · Fresno, CA
Duy Nguyen is a Student in an Organized Health Care Education/Training Program provider in Fresno, CA (NPI 1639788425).
Provider details
- NPI number
- 1639788425
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Sex
- Male
- Sole proprietor
- No
- License
- 188952 (CA)
Specialties & taxonomies
Student, Health Care
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Lorazepam | 14 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 999 Baker Way Ste 150San Mateo, CA 94404-1581Phone: (855) 501-1004
Registry dates
- Enumerated
- 2020-07-28
- Last updated
- 2026-01-30
- Certified
- 2026-01-30
Frequently asked questions
- What is Duy Nguyen's NPI number?
- Duy Nguyen's National Provider Identifier (NPI) is 1639788425, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Duy Nguyen's specialty?
- Duy Nguyen is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Duy Nguyen located?
- Duy Nguyen's practice location on file with NPPES is 155 N Fresno St, Fresno, CA 93701-2302.
- What is Duy Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Duy Nguyen is (279) 204-5314.
- Is Duy Nguyen's NPI active?
- Yes — Duy Nguyen's NPI (1639788425) is active in the NPPES registry as of the last update on 2026-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.