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 – Friday, January 1, 2021
Memorial Day – Monday, May 31, 2021
Independence Day – Monday, July 5, 2021
Labor Day – Monday, September 6, 2021
Thanksgiving Day – Thursday, November 25, 2021
Friday after Thanksgiving – Friday, November 26, 2021
Christmas – Friday, December 24, 2021
New Year’s Day – Friday, December 31, 2021

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