What is the mailing address for utmb? A. UTMB has four campuses and dozens of clinical sites throughout the state. (These can be reviewed on our online campus map .) However, the main mailing address for the university is: The University of Texas Medical Branch; 301 University Boulevard; Galveston, TX 77555.How do i call utmb galveston from outside the campus? If dialing from a UTMB Health telephone from inside the UTMB Galveston Campus John Sealy Hospital, dial the 5-digit bolded numbers listed below; otherwise, dial the entire number as listed. For outside calls, dial 9 + the area code and the number. When calling from outside the campus or on your mobile phone, please use the full number as shown.How do i contact the utmb health mychart patient support team? The UTMB Health MyChart Patient Support team is available 24/7 at (409) 772-4278. Loading...What does utmb stand for? For more than a century, the University of Texas Medical Branch (UTMB Health) has served the needs of Texas and Texans from its large Galveston campus, long anchored by the John Sealy Hospital.