Teresa Nguyen, OD
NPI 1497237051 · Optometrist · Fremont, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Teresa Nguyen, OD is a Optometrist provider in Fremont, CA (NPI 1497237051).
Provider details
- NPI number
- 1497237051
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- Sole proprietor
- No
- License
- 34085TLG (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 tenure33% of score
7 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$110 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 432 N Capitol AveSan Jose, CA 95133-1938Phone: (408) 964-4128
Registry dates
- Enumerated
- 2018-08-30
- Last updated
- 2020-05-30
- Certified
- 2020-05-30
Frequently asked questions
- What is Teresa Nguyen's NPI number?
- Teresa Nguyen's National Provider Identifier (NPI) is 1497237051, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Teresa Nguyen's specialty?
- Teresa Nguyen is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Teresa Nguyen located?
- Teresa Nguyen's practice location on file with NPPES is 43810 Christy St, Fremont, CA 94538-3280.
- What is Teresa Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Teresa Nguyen is (510) 897-3612.
- Does Teresa Nguyen accept Medicare?
- Teresa Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Teresa Nguyen's NPI active?
- Yes — Teresa Nguyen's NPI (1497237051) is active in the NPPES registry as of the last update on 2020-05-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.