Monica Nguyen, O.D.
NPI 1356959258 · Optometrist · San Leandro, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Monica Nguyen, O.D. is a Optometrist provider in San Leandro, CA (NPI 1356959258).
Provider details
- NPI number
- 1356959258
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Eye and Vision Services Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
5 yrs in NPPES registry
- Profile completeness33% of score
83% 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.
$49 across 2 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)
- 130 S Sunnyvale AveSunnyvale, CA 94086-6249Phone: (380) 736-3802
Registry dates
- Enumerated
- 2020-07-16
- Last updated
- 2023-01-28
- Certified
- 2021-08-22
Frequently asked questions
- What is Monica Nguyen's NPI number?
- Monica Nguyen's National Provider Identifier (NPI) is 1356959258, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Monica Nguyen's specialty?
- Monica Nguyen is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Monica Nguyen located?
- Monica Nguyen's practice location on file with NPPES is 157 Parrott St, San Leandro, CA 94577-4813.
- What is Monica Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Monica Nguyen is (510) 488-4770.
- Does Monica Nguyen accept Medicare?
- Monica Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Monica Nguyen's NPI active?
- Yes — Monica Nguyen's NPI (1356959258) is active in the NPPES registry as of the last update on 2023-01-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.