What is Rex Chuang's NPI number?

Rex Chuang's National Provider Identifier (NPI) is 1316257371, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Rex Chuang's specialty?

Rex Chuang is listed in the NPPES registry with a primary specialty of Pediatric Dentistry (Dental Providers).

Where is Rex Chuang located?

Rex Chuang's practice location on file with NPPES is 23321 El Toro Rd Ste C, Lake Forest, CA 92630-4825.

What is Rex Chuang's phone number?

The practice phone number listed in the NPPES registry for Rex Chuang is (949) 916-9798.

Is Rex Chuang's NPI active?

Yes — Rex Chuang's NPI (1316257371) is active in the NPPES registry as of the last update on 2026-02-18.

IndividualActive

Rex Chuang, D.D.S.

NPI 1316257371 · Pediatric Dentistry · Lake Forest, CA

Rex Chuang, D.D.S. is a Pediatric Dentistry provider in Lake Forest, CA (NPI 1316257371).

Provider details

NPI number: 1316257371
Entity type: Individual
Primary specialty: Pediatric DentistryDental Providers
Credential: D.D.S.
Sex: Male
Sole proprietor: No
License: 59880 (CA)

Specialties & taxonomies

Pediatric DentistryPrimary1223P0221XLicense 59880 (CA)
Dental Providers

Profile Score

Detailed profile(83/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
15 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

23321 El Toro Rd Ste C

Lake Forest, CA 92630-4825

Phone: (949) 916-9798

Fax: (949) 916-9797

Street-level locationGet directions

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Mailing address