Hieu Nguyen
NPI 1891444725 · Psychiatry Physician · Ladera Ranch, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hieu Nguyen is a Psychiatry Physician provider in Ladera Ranch, CA (NPI 1891444725).
Provider details
- NPI number
- 1891444725
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- MD61588870 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
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
3 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
Mailing address
Additional practice locations (2)
- 1959 Ne Pacific St # 356560Seattle, WA 98195-3321Phone: (206) 543-4292
- 6400 Southcenter BlvdTukwila, WA 98188-2547Phone: (206) 901-2000Fax: (206) 901-2010
Registry dates
- Enumerated
- 2022-03-18
- Last updated
- 2026-01-08
- Certified
- 2026-01-08
Frequently asked questions
- What is Hieu Nguyen's NPI number?
- Hieu Nguyen's National Provider Identifier (NPI) is 1891444725, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hieu Nguyen's specialty?
- Hieu Nguyen is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Hieu Nguyen located?
- Hieu Nguyen's practice location on file with NPPES is 333 Corporate Dr Ste 260, Ladera Ranch, CA 92694-2180.
- What is Hieu Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Hieu Nguyen is (949) 768-2988.
- Does Hieu Nguyen accept Medicare?
- Hieu Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hieu Nguyen's NPI active?
- Yes — Hieu Nguyen's NPI (1891444725) is active in the NPPES registry as of the last update on 2026-01-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.