Joseph Wu, MD Internal Medicine (205) 397-8921; Nancy Zumstein, MD Pediatrics (205) 397-8904; Contact Us Phone: (205) 780-7053 Fax: (205) 206-8300 Monday - Friday (8 AM to 5 PM) Our Location. Simon-Williamson Clinic, P.C. 832 Princeton Avenue SW Birmingham, AL 35211 Directions. Parking is maintained by the hospital, adjacent to the SWC building ....