What is Hoi Ying Chu's NPI number?

Hoi Ying Chu's National Provider Identifier (NPI) is 1609747088, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Hoi Ying Chu's specialty?

Hoi Ying Chu is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).

Where is Hoi Ying Chu located?

Hoi Ying Chu's practice location on file with NPPES is 680 55th St Apt D, Oakland, CA 94609-1652.

What is Hoi Ying Chu's phone number?

The practice phone number listed in the NPPES registry for Hoi Ying Chu is (510) 394-8620.

Is Hoi Ying Chu's NPI active?

Yes — Hoi Ying Chu's NPI (1609747088) is active in the NPPES registry as of the last update on 2025-09-17.

IndividualActive

Hoi Ying Chu, RDN

NPI 1609747088 · Registered Dietitian · Oakland, CA

Hoi Ying Chu, RDN is a Registered Dietitian provider in Oakland, CA (NPI 1609747088).

Provider details

NPI number: 1609747088
Entity type: Individual
Primary specialty: Registered DietitianDietary & Nutritional Service Providers
Credential: RDN
Sex: Female
Sole proprietor: Yes
License: 86117540 (CA)

Specialties & taxonomies

Registered DietitianPrimary133V00000XLicense 86117540 (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

680 55th St Apt D

Oakland, CA 94609-1652

Phone: (510) 394-8620

Street-level locationGet directions

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Mailing address