New Reservations / Southern California: Request a Quote/Make a Reservation Online or call: ATLS (Calif. TCP #22143-P) 1104 Oneonta Drive, Los Angeles, CA 90065 Phone: (323) 259-5330 Fax: (323) 340-8894 or use this Click2Talk box to get a call from us: Other Questions / Southern California: Please Read our FAQ webpage for the answers to common questions. If you cannot find the answer, use the contact info above, or fill out the Question/ Comment Form at the bottom of the FAQ webpage.