Chi Quang, O.D.
NPI 1386871705 · Optometrist · Castro Valley, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chi Quang, O.D. is a Optometrist provider in Castro Valley, CA (NPI 1386871705).
Provider details
- NPI number
- 1386871705
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 13373 (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
17 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.
$50 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
- 2009-06-11
- Last updated
- 2011-03-29
Frequently asked questions
- What is Chi Quang's NPI number?
- Chi Quang's National Provider Identifier (NPI) is 1386871705, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chi Quang's specialty?
- Chi Quang is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Chi Quang located?
- Chi Quang's practice location on file with NPPES is 4041 E Castro Valley Blvd, Castro Valley, CA 94552-4840.
- What is Chi Quang's phone number?
- The practice phone number listed in the NPPES registry for Chi Quang is (510) 881-8343.
- Does Chi Quang accept Medicare?
- Chi Quang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chi Quang's NPI active?
- Yes — Chi Quang's NPI (1386871705) is active in the NPPES registry as of the last update on 2011-03-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.