Clare Hwang, OD
NPI 1831085570 · Optometrist · Fullerton, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clare Hwang, OD is a Optometrist provider in Fullerton, CA (NPI 1831085570).
Provider details
- NPI number
- 1831085570
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- Sole proprietor
- No
- License
- 36018 (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 tenure38% of score
1 yr 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
Mailing address
Registry dates
- Enumerated
- 2025-06-17
- Last updated
- 2025-06-17
- Certified
- 2025-06-09
Frequently asked questions
- What is Clare Hwang's NPI number?
- Clare Hwang's National Provider Identifier (NPI) is 1831085570, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clare Hwang's specialty?
- Clare Hwang is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Clare Hwang located?
- Clare Hwang's practice location on file with NPPES is 2575 Yorba Linda Blvd, Fullerton, CA 92831-1615.
- What is Clare Hwang's phone number?
- The practice phone number listed in the NPPES registry for Clare Hwang is (714) 449-7400.
- Does Clare Hwang accept Medicare?
- Clare Hwang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Clare Hwang's NPI active?
- Yes — Clare Hwang's NPI (1831085570) is active in the NPPES registry as of the last update on 2025-06-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.