Joyce Luk, PHARM.D.
NPI 1861777534 · Pharmacist · Union City, CA
Joyce Luk, PHARM.D. is a Pharmacist provider in Union City, CA (NPI 1861777534).
Provider details
- NPI number
- 1861777534
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Credential
- PHARM.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 66160 (CA)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Famotidine | 54 | 54 |
| Insulin Nph Human Isophanebrand: Humulin N | 27 | 27 |
| Atorvastatin Calcium | 25 | 23 |
| Metformin Hclbrand: Metformin Hcl Er | 15 | 15 |
| Insulin Nph Human Isophanebrand: Humulin N Kwikpen | 13 | 12 |
| Insulin Glargine-Yfgn | 13 | 13 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-10-13
- Last updated
- 2021-11-24
- Certified
- 2021-11-24
Frequently asked questions
- What is Joyce Luk's NPI number?
- Joyce Luk's National Provider Identifier (NPI) is 1861777534, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joyce Luk's specialty?
- Joyce Luk is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is Joyce Luk located?
- Joyce Luk's practice location on file with NPPES is 30116 Eigenbrodt Way, Union City, CA 94587-1225.
- What is Joyce Luk's phone number?
- The practice phone number listed in the NPPES registry for Joyce Luk is (510) 862-4666.
- Is Joyce Luk's NPI active?
- Yes — Joyce Luk's NPI (1861777534) is active in the NPPES registry as of the last update on 2021-11-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.