New Mexico’s Centennial Care 2.0 program operates through two statewide MCOs with a unique tribal/Indian Health Service provider enrollment pathway that no other state replicates at the same scale.
What Is the NM MMIS Portal?
The New Mexico MMIS portal is the centralized provider enrollment platform operated by the Human Services Department (HSD).
Step-by-Step NM Medicaid Enrollment
NM enrollment requires MMIS registration followed by Centennial Care MCO credentialing.
Register on NM MMIS
Create account with NPI, Tax ID, NM license, and practice information.
Complete Application
Demographics, NM license, specialties, locations, ownership disclosures, billing config.
Upload Documents
NM license, NPI, W-9, EIN, liability insurance, DEA, voided check, ownership forms.
Complete Screening
OIG/SAM checks, NM licensing board verification, DPS background checks for high-risk.
Submit
Processing: 30–45 days.
Credential with Centennial Care MCOs
Credential with both Blue Cross Blue Shield NM and Presbyterian Health Plan.
Centennial Care 2.0: Two-MCO System
| MCO | Parent | Key Details |
|---|---|---|
| Blue Cross Blue Shield of NM | HCSC | Statewide; strong in Albuquerque |
| Presbyterian Health Plan | Presbyterian Healthcare | Statewide; NM-based, strong rural networks |
✔ Simplicity: Only two MCOs statewide. Credential with both for full access. Presbyterian’s local NM roots give them strong rural networks.
Tribal/IHS Provider Enrollment
New Mexico has the 5th-largest Native American population in the US, and tribal/IHS providers have unique enrollment pathways under federal law.
- IHS and tribal providers can enroll through a streamlined federal pathway
- Tribal members can receive services from any Medicaid-enrolled provider regardless of MCO assignment
- The 100% FMAP (Federal Medical Assistance Percentage) for IHS/tribal services creates distinct billing rules
- Providers serving tribal populations should understand the IHS/tribal billing crossover
⚠ Tribal Billing: Services provided to American Indian/Alaska Native Medicaid members through IHS/tribal facilities are reimbursed at the IHS encounter rate, not the standard Medicaid fee schedule. Ensure your billing system is configured for the correct rate structure.
Frequently Asked Questions
How long does NM enrollment take?
MMIS: 30–45 days. MCO: 30–60 days. Total: 60–105 days.
How many MCOs?
Two statewide: BCBS NM and Presbyterian. Credential with both.
Are there special tribal enrollment rules?
Yes. IHS/tribal providers have streamlined federal enrollment and different reimbursement rates under 100% FMAP.
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