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Aaron Chang
NPI 1306172697 · Optician · San Mateo, CA
Aaron Chang is a Optician provider in San Mateo, CA (NPI 1306172697).
Provider details
- NPI number
- 1306172697
- Entity type
- Individual
- Primary specialty
- OpticianEye and Vision Services Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 208451147 (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
Detailed profile(84/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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
200a 2nd Ave
San Mateo, CA 94401-3904
Phone: (650) 685-8828
Fax: (650) 685-0101
Street-level locationGet directions
Mailing address
200a 2nd Ave
San Mateo, CA 94401-3904
Registry dates
- Enumerated
- 2009-10-22
- Last updated
- 2009-10-22
Frequently asked questions
- What is Aaron Chang's NPI number?
- Aaron Chang's National Provider Identifier (NPI) is 1306172697, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Aaron Chang's specialty?
- Aaron Chang is listed in the NPPES registry with a primary specialty of Optician (Eye and Vision Services Providers).
- Where is Aaron Chang located?
- Aaron Chang's practice location on file with NPPES is 200a 2nd Ave, San Mateo, CA 94401-3904.
- What is Aaron Chang's phone number?
- The practice phone number listed in the NPPES registry for Aaron Chang is (650) 685-8828.
- Is Aaron Chang's NPI active?
- Yes — Aaron Chang's NPI (1306172697) is active in the NPPES registry as of the last update on 2009-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.