Peggy Chen, O.D
NPI 1598780561 · Optometrist · Fremont, CA
Peggy Chen, O.D is a Optometrist provider in Fremont, CA (NPI 1598780561).
Provider details
- NPI number
- 1598780561
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D
- Sex
- Female
- Sole proprietor
- Yes
- License
- 007032 (NY)
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 tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- 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.
$37 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
Registry dates
- Enumerated
- 2006-07-12
- Last updated
- 2009-08-27
Frequently asked questions
- What is Peggy Chen's NPI number?
- Peggy Chen's National Provider Identifier (NPI) is 1598780561, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peggy Chen's specialty?
- Peggy Chen is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Peggy Chen located?
- Peggy Chen's practice location on file with NPPES is 38024 Martha Ave, Fremont, CA 94536-3809.
- What is Peggy Chen's phone number?
- The practice phone number listed in the NPPES registry for Peggy Chen is (510) 791-2233.
- Is Peggy Chen's NPI active?
- Yes — Peggy Chen's NPI (1598780561) is active in the NPPES registry as of the last update on 2009-08-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.