IndividualActive
Diem Nguyen, RDN
NPI 1972000685 · Registered Dietitian · Simi Valley, CA
Diem Nguyen, RDN is a Registered Dietitian provider in Simi Valley, CA (NPI 1972000685).
Provider details
- NPI number
- 1972000685
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RDN
- Sex
- Female
- Sole proprietor
- Yes
- License
- 86072366 (CA)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
Established profile(73/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 yrs in NPPES registry
- Profile completeness38% of score
100% 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
1667 Moonseed Ln
Simi Valley, CA 93065-7421
Phone: (818) 274-2969
Street-level locationGet directions
Mailing address
1667 Moonseed Ln
Simi Valley, CA 93065-7421
Additional practice locations (1)
- 1667 Moonseed LnSimi Valley, CA 93065-7421Phone: (818) 274-2969
Registry dates
- Enumerated
- 2018-04-09
- Last updated
- 2018-04-09
Frequently asked questions
- What is Diem Nguyen's NPI number?
- Diem Nguyen's National Provider Identifier (NPI) is 1972000685, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diem Nguyen's specialty?
- Diem Nguyen is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Diem Nguyen located?
- Diem Nguyen's practice location on file with NPPES is 1667 Moonseed Ln, Simi Valley, CA 93065-7421.
- What is Diem Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Diem Nguyen is (818) 274-2969.
- Is Diem Nguyen's NPI active?
- Yes — Diem Nguyen's NPI (1972000685) is active in the NPPES registry as of the last update on 2018-04-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.