The Patient portal is a secure, web-based portal that allows for better communication with your child/ren(s) physician’s office by providing convenient 24 X 7 access from the comfort and privacy of your own home. ... POTOMAC PEDIATRICS. 15204 Omega Drive 301-279-6750 Suite #100 301-208-8953 Rockville, MD 20850 question@potomacpediatrics.com ....