Valley Health Lab Services - Front Royal (Commerce Ave.) Address 120 N. Commerce Avenue, Suite 102 Front Royal, VA 22630 Phone (540) 635-0713 Fax (540) 635-0710 Hours of Operation M-F: 7am - 5 pm, Sat: 8 am - 12 Noon Get Directions Latitude new Valley Health Lab Services - Front Royal (Commerce Ave.) Address 120 N. Commerce Avenue, Suite 102 Front Royal, VA 22630 Phone (540) 635-0713 Fax (540) 635-0710