NY offices: (212) 868-4720 ext 600. When Logging in please be sure to include the umhs-sk.net extension to your username: Example: John Doe's email address: jdoe@umhs-sk.net. Wayne Williams. CTO. University of Medicine & Health Sciences. 275, 7th Ave, 26th Floor, New York, NY 10001. Office: (212) 868-4720 ext 600..