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For more information about our company, contact our corporate office: 

NAMM California Corporate Office
3990 Concours, Suite 500
Ontario, CA 91764
1-909-605-8000

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Provider disputes and appeals

Provider dispute resolution department
P.O. Box 6902
Rancho Cucamonga, CA 91729-6902

 

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Claims addresses – Southern California 

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PrimeCare (All IPAs)
P.O. Box 6903
Rancho Cucamonga, CA 91729-6903

 

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Mercy Physicians Medical Group
P.O. Box 6907
Rancho Cucamonga, CA 91729-6907

 

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Primary Care Associates
P.O. Box 6906
Rancho Cucamonga, CA 91729-6906

 

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Valley Physicians Network
P.O. Box 6903
Rancho Cucamonga, CA 91729-6903

 

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Humana & SCAN PO2
P.O. Box 6904
Rancho Cucamonga, CA 91729-6904

 

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Healthplan Forwards
P.O. Box 6901
Rancho Cucamonga, CA 91729-6901

 

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Helpful resources

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Downstream provider notice

View claims submission information for physicians and providers.

Claims payment practices

Learn more about the claims payment policies followed by NAMM California.

Contact us

Please contact us with your questions.