How To Submit Claims To Imperial Health Plan

For Imperial Health Plan, the practical claims workflow usually starts with electronic submission guidance and only falls back to paper instructions when the payer documents a mailing address for specific claim types or exceptions. The details below keep the workflow broad instead of reducing it to a single address.

At a glance

• Imperial accepts electronic and paper claims. Official provider materials indicate Imperial prefers electronic submission, partners with Office Ally for claims submission, and uses specific Office Ally payer IDs by state/LOB. Paper claim mailing addresses differ by state/plan. Provider portals also expose claims status.

Submission channels

• Electronic via Office Ally
• Paper/mail
• Provider portal for claims status and related functions

Electronic claims payer IDs

• IHP01
• IHHMG
• IEXAZ
• IEXTX
• IEXNV
• IEXUT

Paper claims addresses

• Imperial Health Plan of California, Inc. / P.O. Box 60874, Pasadena, CA 91116-6874
• Imperial Health Holdings Medical Group / P.O. Box 60075, Pasadena, CA 91116-6874
• Arizona Exchange Claims Department / P.O. Box 60567, Pasadena, CA 91116
• Texas Exchange Claims Department / P.O. Box 61300, Pasadena, CA 91116
• Nevada Exchange Claims Department / P.O. Box 60590, Pasadena, CA 91116
• Utah Exchange Claims Department / P.O. Box 60190, Pasadena, CA 91116

Corrected claims and follow-up

• Claim payment disputes for denials related to untimely filing, bundling, incidental procedures, unlisted codes, non-covered codes, etc. must be submitted in writing within 60 calendar days of the EOP denial date using the provider dispute resolution form (contracted providers).

• Contracted providers must mail the provider dispute resolution form to the address on the form; do not send it to the appeals department.

• For overpayment disputes, written notice must be sent within 30 working days of the overpayment notice.

• Claims status resource 1

• Claims status resource 2

• Claims status resource 3

Caveats

• Claim submission details vary significantly by state and product; the addresses and payer IDs above are the ones explicitly listed in official materials reviewed.
• I did not find a verified electronic payer ID for every possible Imperial product beyond the IDs listed in the provider manuals.
• The exact corrected-claim/void-bill mechanics were not clearly spelled out in the reviewed official sources; the dispute process is the clearest official path for claim reconsideration.

Provider resources

• California provider page (official)
• Texas provider page (official)
• Provider manual (California / Imperial Health Plan of California, Inc.) (official)
• Exchange provider manual (2025) (official)
• Updated Exchange provider manual (2025) (official)
• Texas Marketplace prior authorization document (official)
• Transparency in Coverage / claim filing time limits (official)
• Provider portal (official)

Sources