Diem-Khanh Nguyen, MD
NPI 1265282149 · Psychiatry Physician · Los Angeles, CA
Enrolled with Medicare as Order and Referring Only - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diem-Khanh Nguyen, MD is a Psychiatry Physician provider in Los Angeles, CA (NPI 1265282149).
Provider details
- NPI number
- 1265282149
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
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
2 yrs in NPPES registry
- Profile completeness38% of score
83% 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
Mailing address
Registry dates
- Enumerated
- 2024-03-25
- Last updated
- 2025-07-29
- Certified
- 2025-07-29
Frequently asked questions
- What is Diem-Khanh Nguyen's NPI number?
- Diem-Khanh Nguyen's National Provider Identifier (NPI) is 1265282149, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diem-Khanh Nguyen's specialty?
- Diem-Khanh Nguyen is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Diem-Khanh Nguyen located?
- Diem-Khanh Nguyen's practice location on file with NPPES is 1200 N State St, Los Angeles, CA 90033-1029.
- What is Diem-Khanh Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Diem-Khanh Nguyen is (323) 409-5555.
- Does Diem-Khanh Nguyen accept Medicare?
- Diem-Khanh Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diem-Khanh Nguyen's NPI active?
- Yes — Diem-Khanh Nguyen's NPI (1265282149) is active in the NPPES registry as of the last update on 2025-07-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.