Payer Directory

Mississippi Medicaid Medicare Advantage Crossovers: payer ID and claims support

Mississippi Medicaid Medicare Advantage Crossovers uses payer ID 12K18. Real-time eligibility isn't available for this payer today — here's what transactions it does support, and how to reach them.

Payer ID 12K18Medicaid

Mississippi Medicaid Medicare Advantage Crossovers at a glance

What billers need before running a check.

Payer ID

12K18

Real-time eligibility

Not available

Verify coverage through the payer’s portal or phone line.

Coverage

medical

Medicaid

Operating area

Not published

Supported transactions

What can be exchanged electronically with Mississippi Medicaid Medicare Advantage Crossovers 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	NOT AVAILABLE
Institutional claims (837I) Facility claims	ENROLLMENT REQUIRED
Dental claims (837D) Dental claims	NOT AVAILABLE
Remittance (835 ERA) Electronic remittance advice	NOT AVAILABLE
Coordination of benefits Secondary-payer routing	NOT AVAILABLE
Claim attachments (275) Supporting documentation	NOT AVAILABLE

Frequently asked questions

What is the payer ID for Mississippi Medicaid Medicare Advantage Crossovers?+

Mississippi Medicaid Medicare Advantage Crossovers uses payer ID 12K18.

Does Mississippi Medicaid Medicare Advantage Crossovers support real-time eligibility verification?+

Not electronically today. Coverage for Mississippi Medicaid Medicare Advantage Crossovers has to be confirmed through the payer's own portal or phone line.