Claims Mailing Address: PO BOX 2720, CITY OF INDUSTRY, CA 91746
Group Name Office Ally Payer ID
All United Medical Group – AUMG (CleverCare and Central HP Members ONLY) AUMG2
IN Physician Associates – INPA (for CleverCare and Astiva HP Members ONLY) INPA1
Vitruvian Care IPA – VUIPA VUIPA
Northern California Physician Group – NCPG NCPG1
Guidant GHP01
MedCare Partners, Inc – MCP MCP01
Tri-Valley Medical Group – TVMG TVMG1

Change Healthcare Cyberattack Notification:

For individuals who have been impacted by the Change Healthcare cyberattack, please visit Change Healthcare’s Support website at which provides information regarding support for those who are concerned about their personal data due to the Change Healthcare cyberattack, including free credit monitoring and identity theft protections for those impacted.

To file a complaint with IMS MSO related to this incident, please contact IMS MSO’s Customer Services Department at 323-800-8283.


Submit claims electronically through OfficeAlly or through our Provider Portal.


IMS works directly with CAQH, a NCQA accredited Credentialing Verification Organization.

IN Physicians

Innovative Management Solutions (IMS) is proud to offer a large network of affiliated physicians.


Building, expanding, and maintaining a comprehensive physician and ancillary provider network.







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