What is William Nguyen's NPI number?

William Nguyen's National Provider Identifier (NPI) is 1518255447, 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 Psychiatry Physician (Allopathic & Osteopathic Physicians).

Where is William Nguyen located?

William Nguyen's practice location on file with NPPES is 2 Overhill Rd Ste 400, Scarsdale, NY 10583-5316.

What is William Nguyen's phone number?

The practice phone number listed in the NPPES registry for William Nguyen is (646) 954-2400.

Is William Nguyen's NPI active?

Yes — William Nguyen's NPI (1518255447) is active in the NPPES registry as of the last update on 2026-02-10.

IndividualActive

William Nguyen, M.D.

NPI 1518255447 · Psychiatry Physician · Scarsdale, NY

William Nguyen, M.D. is a Psychiatry Physician provider in Scarsdale, NY (NPI 1518255447).

Provider details

NPI number: 1518255447
Entity type: Individual
Primary specialty: Psychiatry PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: Yes
License: 275126 (NY)

Specialties & taxonomies

Psychiatry PhysicianPrimary2084P0800XLicense 275126 (NY)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(81/100 index)

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

Registry tenure38% of score
14 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.

Practice location

2 Overhill Rd Ste 400

Scarsdale, NY 10583-5316

Phone: (646) 954-2400

Street-level locationGet directions

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Mailing address