Alvin Fung, FNP
NPI 1497426233 · Primary Care Nurse Practitioner · Irvine, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alvin Fung, FNP is a Primary Care Nurse Practitioner provider in Irvine, CA (NPI 1497426233).
Provider details
- NPI number
- 1497426233
- Entity type
- Individual
- Primary specialty
- Primary Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Male
- Sole proprietor
- No
- License
- 95003246 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 30 | 30 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 28 | 27 |
| Prednisone | 24 | 24 |
| Nirmatrelvir/Ritonavirbrand: Paxlovid (eua) | 20 | 20 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 16 | 16 |
| Azithromycin | 12 | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they include 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 , 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
Registry dates
- Enumerated
- 2021-09-22
- Last updated
- 2023-10-27
- Certified
- 2021-09-17
Frequently asked questions
- What is Alvin Fung's NPI number?
- Alvin Fung's National Provider Identifier (NPI) is 1497426233, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alvin Fung's specialty?
- Alvin Fung is listed in the NPPES registry with a primary specialty of Primary Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Alvin Fung located?
- Alvin Fung's practice location on file with NPPES is 4902 Irvine Center Dr, Irvine, CA 92604-3305.
- What is Alvin Fung's phone number?
- The practice phone number listed in the NPPES registry for Alvin Fung is (949) 651-9671.
- Does Alvin Fung accept Medicare?
- Alvin Fung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alvin Fung's NPI active?
- Yes — Alvin Fung's NPI (1497426233) is active in the NPPES registry as of the last update on 2023-10-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.