MAILING ADDRESS: Dr. Diana O'Connor 9809 S. Pennsylvania Avenue Oklahoma City, OK, 73159 Telephone: (405) 692-1557 Fax: (405) 692-4490. OFFICE HOURS: Monday through Thursday 8AM-12PM, 1:30PM-5PM Phones are answered from 8:15am -12:00pm and from 1:45-5pm Friday 8AM-12PM Phones are answered from 8:15am -12:00pm. New patient paperwork is ....