Mar 13, 2019 · With the Esse Health Patient Portal, you now have 24/7 access to your physician’s office. ... Click here to register and login to the new Patient Portal! ... To reach our Patient Portal Help Desk, call 314.851.1118 or toll-free at 855.287.ESSE (3773), Monday-Friday: 8am to 5pm. If you call after hours, your message will be returned the next ....