What is Joyce Zhong's NPI number?

Joyce Zhong's National Provider Identifier (NPI) is 1770134975, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Joyce Zhong's specialty?

Joyce Zhong is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).

Where is Joyce Zhong located?

Joyce Zhong's practice location on file with NPPES is 1340 Arnold Dr Ste 110, Martinez, CA 94553-4189.

What is Joyce Zhong's phone number?

The practice phone number listed in the NPPES registry for Joyce Zhong is (925) 387-9808.

Is Joyce Zhong's NPI active?

Yes — Joyce Zhong's NPI (1770134975) is active in the NPPES registry as of the last update on 2026-01-14.

IndividualActive

Joyce Zhong

NPI 1770134975 · Social Worker · Martinez, CA

Joyce Zhong is a Social Worker provider in Martinez, CA (NPI 1770134975).

Provider details

NPI number: 1770134975
Entity type: Individual
Primary specialty: Social WorkerBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Social WorkerPrimary104100000X
Behavioral Health & Social Service Providers

Profile Score

Established profile(59/100 index)

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

Registry tenure38% of score
6 yrs in NPPES registry
Profile completeness38% of score
83% 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

1340 Arnold Dr Ste 110

Martinez, CA 94553-4189

Phone: (925) 387-9808

Street-level locationGet directions

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Mailing address