What is Doris Chang's NPI number?

Doris Chang's National Provider Identifier (NPI) is 1720120769, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Doris Chang's specialty?

Doris Chang is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).

Where is Doris Chang located?

Doris Chang's practice location on file with NPPES is 4051 Lone Tree Way, Antioch, CA 94531-6204.

What is Doris Chang's phone number?

The practice phone number listed in the NPPES registry for Doris Chang is (925) 757-7676.

Is Doris Chang's NPI active?

Yes — Doris Chang's NPI (1720120769) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Doris Chang, O.D.

NPI 1720120769 · Optometrist · Antioch, CA

Doris Chang, O.D. is a Optometrist provider in Antioch, CA (NPI 1720120769).

Provider details

NPI number: 1720120769
Entity type: Individual
Primary specialty: OptometristEye and Vision Services Providers
Credential: O.D.
Sex: Female
Sole proprietor: Yes
License: 12522T (CA)

Specialties & taxonomies

OptometristPrimary152W00000XLicense 12522T (CA)
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

4051 Lone Tree Way

Suite E

Antioch, CA 94531-6204

Phone: (925) 757-7676

Fax: (925) 757-0652

Street-level locationGet directions

More CA providers

Mailing address