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Authorizations

  • All services not listed on the Preferred IPA Direct Referral form require prior authorization. 

  • Contracted PCPs and Specialists may directly refer patients for Direct Referral services to Contracted Providers without first obtaining prior authorization from the Utilization Management Department

  • The current Direct Referral form is available on the Preferred IPA website.

  • To get the Direct Referral form, navigate to:

    • Provider Services

    • Then Authorizations

    • Then Direct Referral form

  • Or by accessing this link: https://www.preferredipa.com/provider-services/authorizations

  • Contracted PCPs and Specialists may also submit Direct Referrals through the Provider Portal.

General Information


Preferred IPA
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 AM – 5:00 PM (800) 874-2091
Monday – Friday 5:00 PM – 8:30 AM + Weekend & Holidays (800) 280-8008

Hospital Admit – ER Contact Notification

2026 Holiday Schedule (After hours Phone Open)
New Year’s Day - Thursday, January 1, 2026

President's Day - Monday, February 16, 2026

Memorial Day - Monday, May 25, 2026

Juneteenth - Friday, June 19, 2026

Independence Day - Friday, July 3, 2026

Labor Day - Monday, September 7, 2026

Thanksgiving Day - Thursday, November 26, 2026

Day After Thanksgiving - Friday, November 27, 2026

Christmas Day - Friday, December 25, 2026

New Year’s Day - Friday, January 1, 2027

Health Plan Referrals and Prescription Drug Prior Authorization Form


Services Requiring Prior Authorization


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