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. James P Ostrenga located in the city of Naperville, state Illinois. The legal address of the Doctor 100 Spalding Dr. Directions to the Doctor Dr. James P Ostrenga can be found on our interactive map. Ask your questions by calling 6303574111 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: American Board of Internal Medicine Certification in Internal Medicine American Board of Internal Medicine Sub-certificate in Cardiovascular Disease (Internal Medicine) Your comments (not for publishing) * — Required information Dr. James P Ostrenga - Naperville ← View details 100 Spalding Dr, Illinois, Naperville, 60540, Naperville, Illinois 60540 6303574111