Patient Portal. How to Create & Update your Patient Portal Account. New patients - use the SADIO app to: Enter your medical history, medications, allergies, preferred pharmacy, AND ... River Oaks Dermatology. 3730 Kirby Drive Suite 601 Houston, Texas 77098. Contact. 713-581-9119. info@riveroaksderm.com. Fax: 713-489-7096. Follow; Hours ....