Payer Directory

How to check Medicaid Maryland eligibility

A portal or phone check takes a front-desk staffer 10–15 minutes per patient. A real-time 270/271 check returns plan status, copays, deductibles, and out-of-pocket maximums in seconds.

Payer ID 100198Real-time 270/271Enrollment required · daysMedicaid

Three ways to verify Medicaid Maryland coverage

Payer portal — free, but one patient at a time and 10–15 minutes each with logins.
Phone (IVR) — hold times vary; no written record for the chart.
Automated 270/271 check — full benefit detail in seconds, batched for the whole schedule, from $0.50 per check.

Medicaid Maryland at a glance

What billers need before running a check.

Payer ID

100198

Also known as 10289, 1488, 526002033, A5260

Real-time eligibility

After enrollment

A one-time enrollment is required before checks can run (about days).

Coverage

dental, medical

Medicaid

Operating area

Maryland

Payer website

health.maryland.gov

Supported transactions

What can be exchanged electronically with Medicaid Maryland today.

Transaction	Status
Eligibility (270/271) Real-time benefit and coverage checks	ENROLLMENT REQUIRED
Claim status (276/277) Where a submitted claim stands	SUPPORTED
Professional claims (837P) Physician and outpatient claims	ENROLLMENT REQUIRED
Institutional claims (837I) Facility claims	ENROLLMENT REQUIRED
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

Portal vs. phone vs. automated

The same verification, three ways.

	Payer portal	Phone / IVR	Automated check
Time per patient	10–15 min	15–30 min	Seconds
Cost per check	~$6.72 staff time*	~$6.72+ staff time*	from $0.50
Record for the chart	Screenshot	None	Full audit trail
Whole-day schedule	One at a time	One at a time	Batched overnight

*CAQH Index benchmark for a manual eligibility verification.

Frequently asked questions

What is the payer ID for Medicaid Maryland?+

Medicaid Maryland uses payer ID 100198. It also appears as 10289, 1488, 526002033, A5260 in some systems.

Does Medicaid Maryland support real-time eligibility verification?+

Yes. Medicaid Maryland supports real-time 270/271 eligibility checks after a one-time enrollment that typically takes days. Once enrolled, checks return in seconds.

How long does a Medicaid Maryland eligibility check take?+

A portal check takes 10–15 minutes of staff time per patient. An automated real-time check returns in seconds and can run for an entire day's schedule overnight.