Suggest an Edit Name* Categories* Doctor Hospital Pharmacy Add category State* Locality* ZIP* Street address* Phone* Website Opening hours Monday: 09:00 am — 05:00 pm Tuesday: 09:00 am — 05:00 pm Wednesday: 09:00 am — 05:00 pm Thursday: 09:00 am — 05:00 pm Friday: 09:00 am — 05:00 pm Saturday: 09:00 am — 03:00 pm Company description Dr. John J Van Aalst located in the city of Chicago, state Illinois. The legal address of the Doctor 966 W 21st St. Directions to the Doctor Dr. John J Van Aalst can be found on our interactive map. Ask your questions by calling 7736501209 on workdays.</br></br></br>NPI number: Data not provided</br>Provider's gender: Data not provided</br>Practice names: Data not provided</br>Board certifications: Data not provided Your comments (not for publishing) * — Required information Dr. John J Van Aalst - Chicago ← View details 966 W 21st St, Illinois, Chicago, 60608, Chicago, Illinois 60608 7736501209