MyChart Patient Portal » Signature OB/GYN, a community specialty practice of Johns Hopkins Medicine, offers a diverse group of practitioners who care for women throughout their lifetime. Voted Best in Howard County for 16 years by Howard Magazine, we pride ourselves on the relationships and bonds we build with our patients.Contact Us‧About Us‧Patient Information‧Conditions and Treatments‧Established Patients‧Signature OB/GYN.