Lucas Chang
NPI 1821621731 · Ambulatory Care Pharmacist · Union City, CA
Lucas Chang is a Ambulatory Care Pharmacist provider in Union City, CA (NPI 1821621731).
Provider details
- NPI number
- 1821621731
- Entity type
- Individual
- Primary specialty
- Ambulatory Care PharmacistPharmacy Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 78810 (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
6 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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Semaglutidebrand: Ozempic | 49 | 21 |
| Atorvastatin Calcium | 36 | 28 |
| Metformin Hclbrand: Metformin Hcl Er | 33 | 25 |
| Glipizidebrand: Glipizide Er | 32 | 21 |
| Glipizide | 20 | 14 |
| Metformin Hcl | 20 | 12 |
| Insulin Nph Human Isophane |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-02-19
- Last updated
- 2021-12-20
- Certified
- 2021-12-20
Frequently asked questions
- What is Lucas Chang's NPI number?
- Lucas Chang's National Provider Identifier (NPI) is 1821621731, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lucas Chang's specialty?
- Lucas Chang is listed in the NPPES registry with a primary specialty of Ambulatory Care Pharmacist (Pharmacy Service Providers).
- Where is Lucas Chang located?
- Lucas Chang's practice location on file with NPPES is 30116 Eigenbrodt Way, Union City, CA 94587-1225.
- What is Lucas Chang's phone number?
- The practice phone number listed in the NPPES registry for Lucas Chang is (510) 566-3220.
- Is Lucas Chang's NPI active?
- Yes — Lucas Chang's NPI (1821621731) is active in the NPPES registry as of the last update on 2021-12-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.