MBI lookup for CMS eligibility checks
Feb 21, 2025
A Medicare Beneficiary Identifier (MBI) is a unique, randomly-generated identifier assigned to individuals enrolled in Medicare. You must include the patient’s MBI in every eligibility check you submit to the Centers for Medicare and Medicaid Services (Payer ID: CMS). When patients don’t know their MBI, you can use Stedi's eligibility check APIs to perform an MBI lookup using their Social Security Number (SSN) instead.
To perform an MBI lookup:
Construct an eligibility check request with the patient’s first name, last name, date of birth, and Social Security Number (SSN).
Set the
tradingPartnerServiceIdtoMBILU. This is a special Payer ID that tells Stedi to perform an MBI lookup for the patient in addition to a standard eligibility check.Stedi returns a complete benefits response from CMS with the patient's MBI in the
subscriberobject for future reference.
Visit our Medicare Beneficiary Identifier (MBI) lookup docs for complete details.
A Medicare Beneficiary Identifier (MBI) is a unique, randomly-generated identifier assigned to individuals enrolled in Medicare. You must include the patient’s MBI in every eligibility check you submit to the Centers for Medicare and Medicaid Services (Payer ID: CMS). When patients don’t know their MBI, you can use Stedi's eligibility check APIs to perform an MBI lookup using their Social Security Number (SSN) instead.
To perform an MBI lookup:
Construct an eligibility check request with the patient’s first name, last name, date of birth, and Social Security Number (SSN).
Set the
tradingPartnerServiceIdtoMBILU. This is a special Payer ID that tells Stedi to perform an MBI lookup for the patient in addition to a standard eligibility check.Stedi returns a complete benefits response from CMS with the patient's MBI in the
subscriberobject for future reference.
Visit our Medicare Beneficiary Identifier (MBI) lookup docs for complete details.
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Stedi is a registered trademark of Stedi, Inc. All names, logos, and brands of third parties listed on our site are trademarks of their respective owners (including “X12”, which is a trademark of X12 Incorporated). Stedi, Inc. and its products and services are not endorsed by, sponsored by, or affiliated with these third parties. Our use of these names, logos, and brands is for identification purposes only, and does not imply any such endorsement, sponsorship, or affiliation.
Backed by
Stedi is a registered trademark of Stedi, Inc. All names, logos, and brands of third parties listed on our site are trademarks of their respective owners (including “X12”, which is a trademark of X12 Incorporated). Stedi, Inc. and its products and services are not endorsed by, sponsored by, or affiliated with these third parties. Our use of these names, logos, and brands is for identification purposes only, and does not imply any such endorsement, sponsorship, or affiliation.
Backed by
Stedi is a registered trademark of Stedi, Inc. All names, logos, and brands of third parties listed on our site are trademarks of their respective owners (including “X12”, which is a trademark of X12 Incorporated). Stedi, Inc. and its products and services are not endorsed by, sponsored by, or affiliated with these third parties. Our use of these names, logos, and brands is for identification purposes only, and does not imply any such endorsement, sponsorship, or affiliation.