GI of Norman Patient Portal; Plan Your Visit. Meet Our Providers. Satish Arora (MD) 405-515-2777 1125 N. Porter Ave., Suite 301 Norman, OK 73071. Philip C Bird (MD) 405-515-2777 1125 N. Porter Ave., Suite 301 Norman, OK 73071. Robert Holbrook (MD) 405-366-8619 1515 N. Porter Ave., Suite 200.