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Bradford Chang, O.D.
NPI 1770658619 · Optometrist · San Francisco, CA
Bradford Chang, O.D. is a Optometrist provider in San Francisco, CA (NPI 1770658619).
Provider details
- NPI number
- 1770658619
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 10262T (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs 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
929 Clay St Ste 203
San Francisco, CA 94108-1556
Phone: (415) 982-1700
Street-level locationGet directions
Mailing address
929 Clay St Ste 203
San Francisco, CA 94108-1556
Registry dates
- Enumerated
- 2006-11-22
- Last updated
- 2023-02-15
- Certified
- 2023-02-15
Frequently asked questions
- What is Bradford Chang's NPI number?
- Bradford Chang's National Provider Identifier (NPI) is 1770658619, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Bradford Chang's specialty?
- Bradford Chang is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Bradford Chang located?
- Bradford Chang's practice location on file with NPPES is 929 Clay St Ste 203, San Francisco, CA 94108-1556.
- What is Bradford Chang's phone number?
- The practice phone number listed in the NPPES registry for Bradford Chang is (415) 982-1700.
- Is Bradford Chang's NPI active?
- Yes — Bradford Chang's NPI (1770658619) is active in the NPPES registry as of the last update on 2023-02-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.