Carmen Yu
NPI 1619433745 · Optometrist · Antioch, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carmen Yu is a Optometrist provider in Antioch, CA (NPI 1619433745).
Provider details
- NPI number
- 1619433745
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 191583 (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
7 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)
- 2284 Oak Hills DrPittsburg, CA 94565-4202Phone: (925) 303-7695
- 2284 Oak Hills DrPittsburg, CA 94565-4202Phone: (925) 303-7695
Registry dates
- Enumerated
- 2019-02-13
- Last updated
- 2022-02-03
- Certified
- 2022-02-03
Frequently asked questions
- What is Carmen Yu's NPI number?
- Carmen Yu's National Provider Identifier (NPI) is 1619433745, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carmen Yu's specialty?
- Carmen Yu is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Carmen Yu located?
- Carmen Yu's practice location on file with NPPES is 4893 Lone Tree Way, Antioch, CA 94531.
- What is Carmen Yu's phone number?
- The practice phone number listed in the NPPES registry for Carmen Yu is (925) 978-0615.
- Does Carmen Yu accept Medicare?
- Carmen Yu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carmen Yu's NPI active?
- Yes — Carmen Yu's NPI (1619433745) is active in the NPPES registry as of the last update on 2022-02-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.