What is Joy Woon-Chin's NPI number?

Joy Woon-Chin's National Provider Identifier (NPI) is 1356231054, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Joy Woon-Chin's specialty?

Joy Woon-Chin is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).

Where is Joy Woon-Chin located?

Joy Woon-Chin's practice location on file with NPPES is 1820 Barossa Dr, San Ramon, CA 94582-4675.

What is Joy Woon-Chin's phone number?

The practice phone number listed in the NPPES registry for Joy Woon-Chin is (925) 785-9423.

Is Joy Woon-Chin's NPI active?

Yes — Joy Woon-Chin's NPI (1356231054) is active in the NPPES registry as of the last update on 2025-07-07.

IndividualActive

Joy Woon-Chin, RDN

NPI 1356231054 · Registered Dietitian · San Ramon, CA

Joy Woon-Chin, RDN is a Registered Dietitian provider in San Ramon, CA (NPI 1356231054).

Provider details

NPI number: 1356231054
Entity type: Individual
Primary specialty: Registered DietitianDietary & Nutritional Service Providers
Credential: RDN
Sex: Female
Sole proprietor: Yes
License: 805020 (CA)

Specialties & taxonomies

Registered DietitianPrimary133V00000XLicense 805020 (CA)
Dietary & Nutritional Service Providers

Profile Score

Established profile(54/100 index)

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

Registry tenure38% of score
Under 1 yr in 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

1820 Barossa Dr

San Ramon, CA 94582-4675

Phone: (925) 785-9423

Street-level locationGet directions

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Mailing address