City · Illinois · DuPage County
Pharmacies in Oak Brook, IL
2 pharmacies. Community/retail pharmacy: 1 · Pharmacy: 1.
- Costco Wholesale Corporation(630) 928‑0220Community/retail pharmacy · 1901 W 22nd St
- Walgreen Co(630) 928‑0386Pharmacy · 2205 W 22nd St
Nearest emergency rooms
- Elmhurst Memorial Hospital2.0 mi · Elmhurst, IL
- UChicago Medicine AdventHealth Hinsdale2.7 mi · Hinsdale, IL
- Advocate Good Samaritan Hospital3.2 mi · Downers Grove, IL
Common questions
How many pharmacies are in Oak Brook, Illinois?
Our directory lists 2 pharmacies in Oak Brook: Costco Wholesale Corporation and Walgreen Co.
Where is the nearest emergency room to Oak Brook?
Hospitals that list emergency services in Medicare data, near Oak Brook: Elmhurst Memorial Hospital, Elmhurst (2.0 mi), UChicago Medicine AdventHealth Hinsdale, Hinsdale (2.7 mi) and Advocate Good Samaritan Hospital, Downers Grove (3.2 mi). In a medical emergency, call 911.
Pharmacies fill prescriptions, and many also give vaccines and answer questions about your medicines. This list comes from the federal NPI Registry, where every pharmacy that bills health insurance must be registered.
Sources: NPI Registry monthly file, NPPES (updated 2026-11-01, retrieved 2026-11-07). Methodology