Authorizations

Preferred IPA UM Department
P.O. Box 4449
Chatsworth, CA 91313
Phone: (800) 874-2091
Fax: (800) 874-2093
Office Hours: Monday through Friday 8:30 A.M. – 5:00 P.M.

Authorization for Admission
Nurse Case Managers are available 24/7 to facilitate transfers to in network facilities and/or provide authorization for admission. Refer to attached contact list or call:
Monday – Friday 8:30 A.M. – 5:00 P.M (800) 874-2091
Monday – Friday 5:00 P.M. – 8:30 P.M. + Weekend & Holidays (800) 280-8008
Hospital Admit – ER Contact Notification

2021 UM Holiday Schedule (After hours Phone Open)
New Year’s Day – Monday, January 2, 2022
Memorial Day – Monday, May 30, 2022
Independence Day – Monday, July 4, 2022
Labor Day – Monday, September 5, 2022
Thanksgiving Day – Thursday, November 24, 2022
Friday after Thanksgiving – Friday, November 25, 2022
Christmas – Monday, December 26, 2022