How to become a Medicaid provider in Maryland
To bill Maryland Medicaid, enroll through Maryland Provider Registration and Information Management Enterprise (MPRIME), replacing ePREP in October 2026. The process has 4 steps, listed below with the documents the state asks for.
- Enrollment portal
- Maryland Provider Registration and Information Management Enterprise (MPRIME), replacing ePREP in October 2026
- Steps
- 4
- Documents
- 5
- Plans listed
- 9
On this page
Maryland Medicaid enrollment at a glance
To bill Maryland Medicaid, enroll through Maryland Provider Registration and Information Management Enterprise (MPRIME), replacing ePREP in October 2026. The process has 4 steps, listed below with the documents the state asks for.
- Program
- Maryland Medicaid (Maryland Medical Assistance Program, Maryland Department of Health) — HealthChoice
- Enrollment portal
- Maryland Provider Registration and Information Management Enterprise (MPRIME), replacing ePREP in October 2026
- Application fee
- Federal rule (42 CFR 455.460): the state must collect the CMS application fee from institutional providers that are newly enrolling or re-enrolling; individual physicians and non-physician practitioners are exempt, as are providers already enrolled in (or that already paid the fee to) Medicare or another state's Medicaid/CHIP. CMS set the fee at $750 for calendar year 2026.
- Fingerprinting
- Federal rule (42 CFR 455.434, 455.450(c)): providers the state places in the 'high' categorical risk level, and anyone owning 5% or more of such a provider, must submit fingerprints for a criminal background check.
- Site visit
- Federal rule (42 CFR 455.432, 455.450(b)-(c)): the state must do site visits before and after enrollment for providers in the 'moderate' or 'high' risk levels, and any enrolled provider must allow unannounced on-site inspections.
- Revalidation
- To prepare for MPRIME, Maryland moved revalidations due May-October 2026 earlier (notices February-April 2026, 90 days to finish) and put new or updated applications on hold from July 1 (moderate/high risk) and August 1 (limited risk) until the October 2026 go-live. Federal rule (42 CFR 455.414): every enrolled provider must be revalidated at least once every 5 years.
- Provider manual
- Provider manual
Steps
- Enroll (or re-enroll/revalidate) through MPRIME, Maryland Medicaid's one-stop enrollment portal (ePREP until the October 2026 cutover)
- Complete the application with any provider-type addendum and the required documents
- Complete risk-based screening that applies to the provider type
- To serve HealthChoice members, contract with and get credentialed by each MCO; MCOs must accept the Maryland Uniform Credentialing Form
Documents the state asks for
Joining managed-care plan networks
- Credentialing
- HealthChoice MCOs each credential their own networks, but Maryland's CY2026 MCO agreement requires every MCO to accept the Maryland Uniform Credentialing Form and to follow Insurance Article §15-112 when credentialing. There is a common application form but no single verification body. Centralized credentialing: no (uniform form, plan-by-plan credentialing).
- Plans (state list)
- Aetna Better Health of Maryland
- CareFirst Community Health Plan Maryland
- Jai Medical Systems
- Kaiser Permanente of the Mid-Atlantic States
- Maryland Physicians Care
- MedStar Family Choice
- Priority Partners MCO
- UnitedHealthcare
- Wellpoint Maryland
Frequently asked questions
How do I become a Medicaid provider in Maryland?
To bill Maryland Medicaid, enroll through Maryland Provider Registration and Information Management Enterprise (MPRIME), replacing ePREP in October 2026. The process has 4 steps, listed below with the documents the state asks for.
Is there an application fee to enroll in Maryland Medicaid?
Federal rule (42 CFR 455.460): the state must collect the CMS application fee from institutional providers that are newly enrolling or re-enrolling; individual physicians and non-physician practitioners are exempt, as are providers already enrolled in (or that already paid the fee to) Medicare or another state's Medicaid/CHIP. CMS set the fee at $750 for calendar year 2026.
How often must Maryland Medicaid providers revalidate?
To prepare for MPRIME, Maryland moved revalidations due May-October 2026 earlier (notices February-April 2026, 90 days to finish) and put new or updated applications on hold from July 1 (moderate/high risk) and August 1 (limited risk) until the October 2026 go-live. Federal rule (42 CFR 455.414): every enrolled provider must be revalidated at least once every 5 years.