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. Ronald James Koch located in the city of Torrance, state California. The legal address of the Doctor 23451 Madison Street. Directions to the Doctor Dr. Ronald James Koch can be found on our interactive map. Ask your questions by calling (310) 375-9994 on workdays.</br></br></br>NPI number: 1568876142</br>Provider's gender: Male</br>Practice names: California Skin Institute</br>Board certifications: American Board of Otolaryngology Your comments (not for publishing) * — Required information Dr. Ronald James Koch - Torrance ← View details 23451 Madison Street, California, Torrance, 90505, Torrance, California 90505 (310) 375-9994