ID: IP079
Managed Care Organization
CA

North American Medical Management California, Inc. (Updated for 2026)

North American Medical Management California, Inc. (NAMM California) is a regional medical management/physician network that operates provider networks and manages care in Southern California; it is now part of Optum/PrimeCare and provides care coordination and network management for primary and specialist services.

Capabilities

Professional Claims (1500)
Institutional Claims (UB-04)
Electronic Attachments
Workers' Comp
ERA/Remittance
Eligibility Verification
Claim Status Inquiry
Prior Authorization
Dental Claims
Secondary Claims
Real-Time Processing

Alternative Names

Name Payer ID
North American Medical Management - Southern California (NAMM) IP079
PrimeCare Medical Network / Primary Care Associates Medical Group (listed under IP079) IP079
Optum (formerly NAMM California) —

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