M
Payer Directory

Medpay First One: payer ID and claims support

Medpay First One uses payer ID MP001. Real-time eligibility isn't available for this payer today — here's what transactions it does support, and how to reach them.

Payer ID MP001

Medpay First One at a glance

What billers need before running a check.

Payer ID
MP001
Real-time eligibility
Not available
Verify coverage through the payer’s portal or phone line.
Coverage
medical
Operating area
Not published

Supported transactions

What can be exchanged electronically with Medpay First One today.

TransactionStatus
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
SUPPORTED
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 Medpay First One?+
Medpay First One uses payer ID MP001.
Does Medpay First One support real-time eligibility verification?+
Not electronically today. Coverage for Medpay First One has to be confirmed through the payer's own portal or phone line.

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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