Coverage profile
Work Maine Medicaid across every published route
Use the current payer record to choose the right claim-status, eligibility, portal, phone, or appeals workflow. Substrate only marks routes that are published for this payer.
Claim status
EDI 276/277The Substrate Claim Status Agent can check clearinghouse claim status for your practice with Maine Medicaid.
Eligibility
EDI 270/271The Substrate Eligibility Agent can verify patient benefits, identify TPAs and carve-outs, and more with Maine Medicaid.
Other aliases
Also known as
- 10121
- 12K13
- 5259
- CKME0
- CKME1
- MEMCD
- ME_MES_4_MMS_IG
- ME_MMIS_4_DXCMS
- SKME0
- SKME1
- Maine Department of Health and Human Services
- MaineCare
- Medicaid Maine
Payer intelligence
Observed adjudication timing
How long completed claims in Substrate’s aggregate network took from payer receipt to the 835 payment date.
Median time to payment
8 days- 10% of adjudications by
- 6 days
- 90% of adjudications by
- 12 days
- Applicable state coverage
- ME
- Current As Of
- July 2026
Five-month median trend
Days to 835 paymentA trend needs at least two qualified service months.
View chart data as a table
| Service month | Median | 10% of adjudications by | 90% of adjudications by | Completed claims | Coverage |
|---|---|---|---|---|---|
| Apr | No qualified data | ||||
| May | 13 days | 8 days | 34 days | 106 | ME |
| Jun | No qualified data | ||||
| Jul | 8 days | 6 days | 12 days | 103 | ME |
| Aug | No qualified data | ||||
2027 maternity billing research
When does Maine Medicaid change OB/GYN billing?
Transition begins 2026-09-01. Use expected delivery and remaining visits to move from global/bundled care to encounter E/M; append TH to all maternity E/M.
- Transition start
- 2026-09-01
- Billing start
- 2026-09-01
- Published
- 2026-08-06
- Current As Of
- August 2026
Scope: state Medicaid guidance; plan-specific operational guidance not located
Addition of TH modifier to support national maternity care coding changes. Verify the payer source before claim submission.
Frequently asked questions
Maine Medicaid payer FAQs
How do I check claim status with Maine Medicaid?
Providers check Maine Medicaid via EDI 276/277 when the payer ID is accepted. Substrate automates claim status across 3,500+ payers.
What is the payer ID for Maine Medicaid?
The primary payer ID for Maine Medicaid is SKME0. The correct routing ID can differ by clearinghouse and transaction, so compare the 837P, 837I, 835, 270, and 276 entries before submitting.
What are the 837 payer IDs for Maine Medicaid?
The 837P and 837I payer ID for Maine Medicaid is SKME0 via Stedi.
What is the 835 payer ID for Maine Medicaid?
The 835 payer ID for Maine Medicaid is SKME0 via Stedi.
What is the 270 payer ID for Maine Medicaid?
The 270 payer IDs for Maine Medicaid are SKME0 via Stedi and SKME0 via Availity.
What is the 276 payer ID for Maine Medicaid?
The 276 payer ID for Maine Medicaid is SKME0 via Stedi.
What state does Maine Medicaid operate in?
Maine Medicaid operates in ME.
Routing reference
Maine Medicaid payer IDs and operating states
Use the payer ID listed for the transaction you are submitting. Verify current routing and enrollment requirements with your clearinghouse.
| Payer name | Maine MedicaidSource: Substrate payer directory · data last changed |
|---|---|
| Operating states | MESource: Substrate payer directory · data last changed |
| 837P professional claims payer IDStedi | SKME0Source: Stedi payer catalog · catalog dated · matched by payer ID |
| 837I institutional claims payer IDStedi | SKME0Source: Stedi payer catalog · catalog dated · matched by payer ID |
| 835 ERA payer IDStedi | SKME0Enrollment requiredSource: Stedi payer catalog · catalog dated · matched by payer ID |
| 270 eligibility payer IDStedi | SKME0Source: Stedi payer catalog · catalog dated · matched by payer ID |
| 270 eligibility payer IDAvaility | SKME0Source: Availity payer catalog · catalog dated · matched by payer ID |
| 276 claim status payer IDStedi | SKME0Source: Stedi payer catalog · catalog dated · matched by payer ID |
Routing sources and verification
- Substrate payer directoryPayer identity, aliases, operating states, and vendor IDs. Data last changed ; checked .Open payer website ↗
- Stedi payer catalogMatched by payer ID; matched record: Maine Medicaid. Source dated .PrimaryPayerId is used as the transaction payer ID when the corresponding Stedi support flag is true.Open current Stedi reference ↗
- Availity payer catalogMatched by payer ID; matched record: MEDICAID MAINE. Source dated .The attached API workbook supplies 270 and 276 payer IDs only. It does not supply 837P, 837I, or 835 IDs.Open current Availity reference ↗
Clearinghouse payer IDs are transaction-specific and can change. Confirm the current payer list and the member’s ID card before submission.