W
Payer Directory
West PACE: payer ID and claims support
West PACE uses payer ID GMWP1. Real-time eligibility isn't available for this payer today — here's what transactions it does support, and how to reach them.
Payer ID
GMWP1Medicare · MedicaidWest PACE at a glance
What billers need before running a check.
Payer ID
GMWP1Real-time eligibility
Not available
Verify coverage through the payer’s portal or phone line.
Coverage
medical
Medicare · Medicaid
Operating area
California
Payer website
westpace.netSupported transactions
What can be exchanged electronically with West PACE today.
| Transaction | Status |
|---|---|
Eligibility (270/271) Real-time benefit and coverage checks | NOT AVAILABLE |
Claim status (276/277) Where a submitted claim stands | NOT AVAILABLE |
Professional claims (837P) Physician and outpatient claims | SUPPORTED |
Institutional claims (837I) Facility claims | SUPPORTED |
Dental claims (837D) Dental claims | NOT AVAILABLE |
Remittance (835 ERA) Electronic remittance advice | ENROLLMENT REQUIRED |
Coordination of benefits Secondary-payer routing | NOT AVAILABLE |
Claim attachments (275) Supporting documentation | NOT AVAILABLE |
Frequently asked questions
What is the payer ID for West PACE?+–
West PACE uses payer ID GMWP1.
Does West PACE support real-time eligibility verification?+–
Not electronically today. Coverage for West PACE has to be confirmed through the payer's own portal or phone line. Claims, however, can be submitted electronically.
Automate the rest of your revenue cycle
From $0.50 per check, pay-as-you-go. No contract, no implementation project.
65%
fewer denials at Valley Diabetes & Obesity
90%
of eligibility checks fully automated
$107–149K
annual savings, small specialty practice
24 mo
in production
