Dieu Nga Truong & Tra Mi Truong Optometry Inc
NPI 1972039188 · Corneal and Contact Management Optometrist · Fountain Valley, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dieu Nga Truong & Tra Mi Truong Optometry Inc is a Corneal and Contact Management Optometrist organization in Fountain Valley, CA (NPI 1972039188).
Provider details
- NPI number
- 1972039188
- Entity type
- Organization
- Primary specialty
- Corneal and Contact Management OptometristEye and Vision Services Providers
- Organization subpart
- No
- Authorized official
- Tra Mi Truong, Optometrist/Cfo(714) 507-8222
- License
- 9962T (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
Mailing address
Other names (DBA / former)
- Doing business as
- Istyle Optometry
Registry dates
- Enumerated
- 2017-05-08
- Last updated
- 2017-05-08
Frequently asked questions
- What is Dieu Nga Truong & Tra Mi Truong Optometry Inc's NPI number?
- Dieu Nga Truong & Tra Mi Truong Optometry Inc's National Provider Identifier (NPI) is 1972039188, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Dieu Nga Truong & Tra Mi Truong Optometry Inc?
- Dieu Nga Truong & Tra Mi Truong Optometry Inc is classified in the NPPES registry as Corneal and Contact Management Optometrist (Eye and Vision Services Providers).
- Where is Dieu Nga Truong & Tra Mi Truong Optometry Inc located?
- Dieu Nga Truong & Tra Mi Truong Optometry Inc's practice location on file with NPPES is 9430 Warner Ave Ste M, Fountain Valley, CA 92708-2826.
- What is Dieu Nga Truong & Tra Mi Truong Optometry Inc's phone number?
- The practice phone number listed in the NPPES registry for Dieu Nga Truong & Tra Mi Truong Optometry Inc is (714) 377-2020.
- Does Dieu Nga Truong & Tra Mi Truong Optometry Inc accept Medicare?
- Dieu Nga Truong & Tra Mi Truong Optometry Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Dieu Nga Truong & Tra Mi Truong Optometry Inc?
- The authorized official listed on Dieu Nga Truong & Tra Mi Truong Optometry Inc's NPPES record is Tra Mi Truong, Optometrist/Cfo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Dieu Nga Truong & Tra Mi Truong Optometry Inc's NPI active?
- Yes — Dieu Nga Truong & Tra Mi Truong Optometry Inc's NPI (1972039188) is active in the NPPES registry as of the last update on 2017-05-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.