IndividualActive
David Chuang
NPI 1811798390 · Pharmacist · Castro Valley, CA
David Chuang is a Pharmacist provider in Castro Valley, CA (NPI 1811798390).
Provider details
- NPI number
- 1811798390
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 72417 (CA)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
Established profile(55/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr 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
20103 Lake Chabot Rd
Castro Valley, CA 94546-5305
Phone: (510) 727-3028
Street-level locationGet directions
Mailing address
3101 Palermo Way
Dublin, CA 94568-7362
Registry dates
- Enumerated
- 2025-03-21
- Last updated
- 2025-03-21
- Certified
- 2025-03-21
Frequently asked questions
- What is David Chuang's NPI number?
- David Chuang's National Provider Identifier (NPI) is 1811798390, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Chuang's specialty?
- David Chuang is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is David Chuang located?
- David Chuang's practice location on file with NPPES is 20103 Lake Chabot Rd, Castro Valley, CA 94546-5305.
- What is David Chuang's phone number?
- The practice phone number listed in the NPPES registry for David Chuang is (510) 727-3028.
- Is David Chuang's NPI active?
- Yes — David Chuang's NPI (1811798390) is active in the NPPES registry as of the last update on 2025-03-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.