National Medical Enterprises will hold its annual meeting today at 10 a.m. in the Versailles Room of the Beverly Hilton Hotel in Beverly Hills . . . GlenFed Inc., parent company of Glendale Federal Savings & Loan, said it received final approval from the Federal Home Loan Bank Board for its merger with Guarantee Financial Corp., parent company of Guarantee Savings of Fresno . . . Telex Corp., the object of a takeover offer by companies controlled by financier Asher B. Edelman, said it asked stockholders to defer a decision on the offer until the Telex board evaluates it . . . Baker Hughes Inc. reported that the number of oil and gas drilling rigs working in the United States last week fell to 1,104, down 23 from the week before, but up from 814 a year ago.