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Third Party Administration

​​Third-Party Administrators

​Intercare Insurance Holding, Inc.

PO Box 579​
Roseville, CA 95661
Toll Free: 800-771-5454
Phone: 916-677-2500
Fax:  916-677-2610


Drug & Alcohol Testing

Preferred Alliance

16960 S. Harlan Rd., Bldg. 2, Suite 2D
Lathrop, CA 95330-8738
Toll Free: (877) 272-5227
Fax: (209) 858-2669

​​For program questions or problems:  Support Desk

​​Problems with testing, positive test results, MRO questions or serious problems call:


Changes in your district personnel lists can be made by fax (209) 858-2669 or e-mail to Support Desk.

If there is ever a problem, contact Nannette Mendez:  cell (787) 509-0896 or (877) 272-5227.