Cathy Nguyen, O.D.
NPI 1912260878 · Optometrist · Fontana, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cathy Nguyen, O.D. is a Optometrist provider in Fontana, CA (NPI 1912260878).
Provider details
- NPI number
- 1912260878
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 14390 (CA)
Specialties & taxonomies
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
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
Mailing address
Registry dates
- Enumerated
- 2012-06-15
- Last updated
- 2022-01-18
- Certified
- 2022-01-18
Frequently asked questions
- What is Cathy Nguyen's NPI number?
- Cathy Nguyen's National Provider Identifier (NPI) is 1912260878, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cathy Nguyen's specialty?
- Cathy Nguyen is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Cathy Nguyen located?
- Cathy Nguyen's practice location on file with NPPES is 8190 Mango Ave, Fontana, CA 92335-3610.
- What is Cathy Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Cathy Nguyen is (909) 350-2020.
- Does Cathy Nguyen accept Medicare?
- Cathy Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cathy Nguyen's NPI active?
- Yes — Cathy Nguyen's NPI (1912260878) is active in the NPPES registry as of the last update on 2022-01-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.