What is William Nguyen's NPI number?

William Nguyen's National Provider Identifier (NPI) is 1558340570, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Nguyen's specialty?

William Nguyen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).

Where is William Nguyen located?

William Nguyen's practice location on file with NPPES is U.S. Naval Hospital, Gricignano Di Aversa, 81030.

What is William Nguyen's phone number?

The practice phone number listed in the NPPES registry for William Nguyen is (081) 811-6000.

Is William Nguyen's NPI active?

Yes — William Nguyen's NPI (1558340570) is active in the NPPES registry as of the last update on 2025-07-23.

IndividualActive

William Nguyen, MD

NPI 1558340570 · Family Medicine Physician · Gricignano Di Aversa

William Nguyen, MD is a Family Medicine Physician provider in Gricignano Di Aversa (NPI 1558340570).

Provider details

NPI number: 1558340570
Entity type: Individual
Primary specialty: Family Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: 26656 (SC)

Specialties & taxonomies

Family Medicine PhysicianPrimary207Q00000XLicense 26656 (SC)
Allopathic & Osteopathic Physicians
Aerospace Medicine Physician2083A0100XLicense 26656 (SC)
Allopathic & Osteopathic Physicians
General Practice Physician208D00000XLicense 26656 (SC)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(89/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
20 yrs in NPPES registry
Profile completeness38% of score
83% 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.

Practice location

U.S. Naval Hospital

Via Contrada Boscariello

Gricignano Di Aversa, 81030

Phone: (081) 811-6000

Approximate (ZIP-level) locationGet directions

Mailing address

Psc 808 Box 19

Fpo, AE 09618-0001

Additional practice locations (1)

1 Pinckney Blvd Naval Hospital Beaufort
Attn Professional Affairs Coordinator
Beaufort, SC 29902-6148
Phone: (843) 228-5577
Fax: (843) 228-5196

Enumerated: 2006-01-10
Last updated: 2025-07-23
Certified: 2025-07-23

Frequently asked questions

What is William Nguyen's NPI number?: William Nguyen's National Provider Identifier (NPI) is 1558340570, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is William Nguyen's specialty?: William Nguyen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
Where is William Nguyen located?: William Nguyen's practice location on file with NPPES is U.S. Naval Hospital, Gricignano Di Aversa, 81030.
What is William Nguyen's phone number?: The practice phone number listed in the NPPES registry for William Nguyen is (081) 811-6000.
Is William Nguyen's NPI active?: Yes — William Nguyen's NPI (1558340570) is active in the NPPES registry as of the last update on 2025-07-23.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.