IndividualActive
Tracy Nguyen, OD
NPI 1659857910 · Optometrist · Livermore, CA
Tracy Nguyen, OD is a Optometrist provider in Livermore, CA (NPI 1659857910).
Provider details
- NPI number
- 1659857910
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- Sole proprietor
- No
- License
- OPT33998 (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
Established profile(68/100 index)
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
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
2700 Las Positas Rd
Livermore, CA 94551-9619
Phone: (925) 315-5659
Street-level locationGet directions
Mailing address
Po Box 4148
San Jose, CA 95150-4148
Registry dates
- Enumerated
- 2018-07-19
- Last updated
- 2020-10-15
- Certified
- 2020-10-15
Frequently asked questions
- What is Tracy Nguyen's NPI number?
- Tracy Nguyen's National Provider Identifier (NPI) is 1659857910, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tracy Nguyen's specialty?
- Tracy Nguyen is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Tracy Nguyen located?
- Tracy Nguyen's practice location on file with NPPES is 2700 Las Positas Rd, Livermore, CA 94551-9619.
- What is Tracy Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Tracy Nguyen is (925) 315-5659.
- Is Tracy Nguyen's NPI active?
- Yes — Tracy Nguyen's NPI (1659857910) is active in the NPPES registry as of the last update on 2020-10-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.