If you are trying to convert a legacy patient portal: You should have received an email (one for each child) to activate your new HoCo Peds OP Portal by Intelichart. The email(s) contained a unique PIN that is specific for your each child. ... 9501 Old Annapolis Road Suite 101 Ellicott City, MD 21042 Fax: 410-964-5150. Directions. Office Hours ....