New Mexico medical billing and payer rules
New Mexico Medicaid claims must reach the state within 90 calendar days, Medicare Part A and B go to Novitas in Jurisdiction H, and the state's Surprise Billing Protection Act sets a payment benchmark for fully insured plans while the federal No Surprises Act covers the rest.
Written by Salman Saeed, CEO and Co-Founder · Reviewed by a Certified Medical Coder · Last reviewed October 2026In short: new Mexico Medicaid is run by the Health Care Authority, with most members in Turquoise Care managed care plans, and state-paid claims carry a 90 day filing limit. Medicare claims go to Novitas JH. Fully insured plans follow the state Surprise Billing Protection Act and self-funded plans follow the federal NSA.
Timely filing in New Mexico medical billing and payer rules
| Payer | Filing limit | Source |
|---|---|---|
| Medicaid, state-paid claims | 90 calendar days from date of service | 8.302.2.11 NMAC |
| Medicaid, inpatient facility | 90 calendar days from discharge or transfer | 8.302.2.11 NMAC |
| Medicaid, other payer paid first | 90 days from that payment, within 210 days of service | 8.302.2.11 NMAC |
| Turquoise Care plans | Per plan contract and MCO claims manual | Manual text not read |
| Medicare Part A and B | 1 calendar year after date of service | 42 CFR 424.44 |
| Commercial plans | Per provider contract | Contract |
New Mexico law and the federal NSA
New Mexico's Surprise Billing Protection Act applies to the state-regulated coverage it lists. The federal No Surprises Act governs self-funded plans and anything the state law does not reach.
Major payers
How does New Mexico Medicaid billing work?
New Mexico Medicaid is run by the New Mexico Health Care Authority (HCA), and its Medical Assistance Division oversees provider enrollment and revalidation, according to the HCA providers page. Most members are in managed care under Turquoise Care, which began on July 1, 2024. The rest are paid directly by the state on a fee-for-service basis.
The HCA names four health plans, each a managed care organization (MCO): Blue Cross Blue Shield of New Mexico, Molina Healthcare of New Mexico, Presbyterian Health Plan and United Healthcare Community Plan of New Mexico. Native Americans may opt in to managed care. So the first job on any Medicaid account is to find the patient's plan, if any, on the date of service.
Fee-for-service claims go to Turquoise Claims, which an HCA page says replaces the older Omnicaid system and the NM Medicaid Provider Web Portal, with login through YES.NM.GOV. Managed care claims go to the plan under the plan's contract and the HCA's MCO Turquoise Claims Manual (version 1.13, dated 12.01.2025). We saw only that manual's title, so this page states no rule from it.
Facility claims go on the UB-04 and professional claims on the CMS-1500. Our Medicaid payer guide covers the national picture.
What is the New Mexico Medicaid timely filing limit?
Under 8.302.2.11 NMAC, New Mexico Medicaid claims must be received within 90 calendar days of the date of service unless the rule gives another limit. The date that counts is when the Medical Assistance Division or its claims contractor receives the claim, not when you sent it.
| Situation | Limit under 8.302.2.11 NMAC |
|---|---|
| Most services | 90 calendar days from the date of service |
| Inpatient facility claim | 90 calendar days from discharge, transfer or leaving the facility |
| Another payer paid or denied first | 90 calendar days from that payer's payment or denial, and not later than 210 calendar days from the date of service |
| Retroactive eligibility added later | 90 calendar days from the date eligibility was added |
| Provider not enrolled at the time of service | 90 calendar days from notice of approval, and not later than 210 calendar days from the date of service |
| Claim returned, denied or paid wrong | One-time 90 calendar day grace period to resubmit or request an adjustment |
The provider tracks claims and re-files an apparently missing one within the limit. The rule says the state does not waive a limit for staff shortages or misunderstanding, and that additional 90 day grace periods are not allowed.
The rule describes the state's own limits. Its references to HSD contracted MCOs cover recoupments and claims where an MCO paid first, so we do not read it as the limit for a claim sent to a Turquoise Care plan. Those limits come from each plan's contract and manual.
A hospital discharges a New Mexico Medicaid fee-for-service patient on March 10, 2026. Ninety calendar days later is June 8, 2026, so the claim must be received by then.
How does Medicaid provider revalidation work in New Mexico?
New Mexico Medicaid providers enroll, revalidate and update records in the enrollment system at YES.NM.GOV. The HCA says providers are revalidated on a rolling basis and a selected provider gets a 60-day notice to respond with required documents.
The steps it lists are to log in to the Turquoise Claims provider portal, review and update the information, upload the documents and submit. A provider who does not revalidate may be disenrolled and unable to bill. No cited source says whether each location and rendering provider needs a separate enrollment, so this page does not say. Our credentialing and enrollment service works from the HCA's Provider Enrollment Matrix.
Who is the Medicare MAC for New Mexico?
The Medicare Administrative Contractor (MAC) for New Mexico Part A and Part B claims is Novitas Solutions, Inc., in Jurisdiction H (JH). CMS's list puts Arkansas, Colorado, New Mexico, Oklahoma, Texas, Louisiana and Mississippi in JH, so a hospital in Albuquerque and one in Amarillo bill the same contractor.
Two lines go elsewhere. The same CMS list places New Mexico in the home health and hospice group handled by Palmetto GBA, LLC, and in durable medical equipment jurisdiction C with CGS Administrators, LLC. Our source is the CMS MACs-by-state document dated March 2023, and we recheck the current CMS page before each setup.
Medicare's filing limit is 1 calendar year from the date of service under 42 CFR 424.44(a)(1), much longer than Medicaid's 90 days. See our Medicare payer guide.
What is New Mexico's prompt pay law for health plans?
Section 59A-16-21.1 NMSA 1978 requires a health plan to pay interest of one and one-half percent a month on a clean claim from an eligible provider that was submitted electronically and not paid within 30 days of receipt. For a claim submitted manually the deadline is 45 days. Electronic pharmacy claims for prescription drugs have a 14 day deadline.
A clean claim under the statute has substantially all required data elements, is not materially deficient and has no unusual circumstance that blocks timely payment. Lacking documentation the plan currently requires means it is not clean. A health plan is an HMO, a nonprofit health care plan, a provider service network or a third-party payer, or its agent.
If the plan cannot determine liability or refuses to pay, subsection C requires a good-faith written, fax or electronic notice of all specific reasons within the same 30 or 45 days. Separately, section 59A-16-21 makes an insurer that fails to pay for 45 days after proof of loss liable with interest at one and one-half times the prime lending rate for New Mexico banks, except for claims in arbitration or litigation.
A plan receives a clean electronic claim on March 2, 2026. The 30 days end on April 1, 2026, and interest starts if it is unpaid. On paper the 45 days end on April 16, 2026.
Keep the clearinghouse acceptance report. The clock starts on receipt, and that report proves the date.
Does New Mexico have its own surprise billing law, or does federal IDR apply?
New Mexico has its own law, the Surprise Billing Protection Act, sections 59A-57A-1 to 59A-57A-13 NMSA 1978, effective January 1, 2020. It covers fully insured coverage regulated by the state, and it sets a payment rate instead of an arbitration process. The federal No Surprises Act (NSA) still governs self-funded plans.
The state Act protects patients in two situations. For emergency care, a health insurance carrier must reimburse a nonparticipating provider for care needed to evaluate and stabilize the patient, with no prior authorization before stabilization, and may charge cost sharing only to the extent it applies to in-network providers. For non-emergency care, the patient is not liable for charges when the patient at an in-network facility had no ability or opportunity to choose a participating provider, or when medically necessary care is unavailable in the network.
The payment rule is in section 59A-57A-13. A carrier must directly reimburse the nonparticipating provider at the surprise bill reimbursement rate, which is the sixtieth percentile of the allowed commercial reimbursement rate for that service by a provider in the same or a similar specialty in the same geographic area. It is calculated from 2017 plan year claims data in a benchmarking database kept by a nonprofit organization the superintendent specifies, and it cannot be less than 150 percent of the 2017 Medicare reimbursement rate. The statute lists section 13 as repealed effective July 1, 2028.
The Act applies to specified kinds of coverage delivered or issued in New Mexico: group coverage under the Health Care Purchasing Act, individual policies, multiple-employer welfare arrangements, group and blanket policies, health maintenance organization contracts and nonprofit health plans. It excludes Medicare, Medicaid, TRICARE, workers' compensation and several limited policy types from the definition of a health benefits plan.
| Question | State Act (NMSA 59A-57A) | Federal NSA |
|---|---|---|
| Which plans | Fully insured and other state-regulated coverage listed in section 12 | Self-funded ERISA plans, plus any gap state law leaves |
| How the out-of-network rate is set | 60th percentile benchmark, floor of 150 percent of 2017 Medicare | Qualifying payment amount, open negotiation, then federal IDR |
| Ambulance | Ambulance transportation is excluded from the Act's definitions of emergency care and health care services | Air ambulance follows federal rules even where a state law exists (CMS Q and A) |
| Patient appeal | A covered person may appeal a carrier's surprise bill decision, and may appeal to the Office of Superintendent of Insurance for a refund | See our NSA guides for the federal patient protections |
Under 45 CFR 149.30, where a state has in effect a specified State law, the out-of-network rate is the amount determined under that law. CMS describes a specified State law as one that provides a method for determining the total amount payable to an out-of-network provider or facility. New Mexico's benchmark formula fits that description, but this page cites no CMS state-by-state list, so confirm with the No Surprises Help Desk at 1-800-985-3059 before you apply it to a specific claim.
Under the Act a nonparticipating provider shall not knowingly submit a surprise bill to a covered person, and a provider that has collected more than in-network cost sharing must refund the overage within 45 calendar days of receiving the carrier's payment. Section 59A-16-21.3 also makes it an unfair practice to send a surprise bill to a collection agency. For the full state-by-state view, see our state surprise billing laws guide.
How do I file a complaint with the New Mexico Office of Superintendent of Insurance?
The Office of Superintendent of Insurance (OSI) takes complaints through its Consumer Assistance Bureau and lists a separate Provider Complaint Form for providers filing against health insurers. OSI says not to use that form if you are a treating provider filing for a patient's benefit denial, and to use its Managed Healthcare Complaint Form instead.
OSI also lists what it cannot do, including ordering a company to pay a claim or determining the amount owed. So a complaint does not replace a payment dispute. It is the route for a plan that breaks the prompt pay statute. OSI advises contacting the insurer first and asking what appeal procedures apply.
Which payers matter most in New Mexico?
The four Turquoise Care plans named by the HCA are the Medicaid managed care payers: Blue Cross Blue Shield of New Mexico, Molina Healthcare of New Mexico, Presbyterian Health Plan and United Healthcare Community Plan of New Mexico. The HCA notes that Western Sky Community Care was a plan before July 2024, so older accounts may carry it.
Medicare fee-for-service goes to Novitas, and Medicare Advantage plans are paid by the plan. This page cites no OSI market share report, so it names no commercial payer and no market share. Check each plan's current network status before you bill.
What New Mexico billing rules catch hospitals out?
Section 8.302.2 NMAC lets a provider that is registered and subject to gross receipts tax include that tax in the billed amount when it applies to the item or service, only to the extent the general public is also charged, and not when the provider owes no such tax.
It also limits when a Medicaid patient can be billed. A provider unwilling to accept the patient as fee-for-service or as an MCO member must give written notice of the right to seek another provider and get a signed statement that the patient accepts financial responsibility if a non-approved provider renders the service. Read the full rule before sending a Medicaid patient a bill.
What should a New Mexico billing office check before a claim goes out?
Check payer, clock, plan type and form on every claim.
- Run eligibility and read whether a Turquoise Care plan or fee-for-service shows on the date of service.
- Write the deadline on the account: 90 calendar days for state-paid Medicaid (from discharge for inpatient), 1 calendar year for Medicare, and the contract limit for plans.
- For an out-of-network emergency or facility claim, record whether the plan is fully insured or self-funded.
- Send home health and hospice to Palmetto GBA and DME to CGS, not Novitas.
- Save the clearinghouse acceptance report and payer claim number.
How do neighboring states compare?
New Mexico shares Novitas JH with Texas and Colorado, but Arizona is in Jurisdiction F with Noridian Healthcare Solutions, so a system with sites on both sides of that border bills different contractors. Compare our pages for Texas, Colorado and Arizona, and our hospital and facility billing service.
How we handle billing in New Mexico
We sort every New Mexico claim on day one into Medicare under Novitas, a Turquoise Care plan, fee-for-service Medicaid, fully insured commercial or self-funded. That sets the filing clock and whether the state Act or the federal route applies. Claims go out within 24 hours of charge entry and denials are worked within 48 hours. To talk through your payer mix, book a call.
- New Mexico Health Care Authority, Providers · New Mexico Health Care Authority
- Turquoise Care overview · New Mexico Health Care Authority
- Turquoise Claims · New Mexico Health Care Authority
- New Provider and PED Enrollment System · New Mexico Health Care Authority
- 8.302.2 NMAC, Billing for Medicaid Services · New Mexico State Records Center and Archives
- New Mexico Statutes Annotated, Chapter 59A (Insurance Code) · New Mexico Compilation Commission
- Office of Superintendent of Insurance, File a Complaint · New Mexico Office of Superintendent of Insurance
- Medicare Administrative Contractors by state (MACs) · CMS
- Who are the MACs · CMS
- Questions and Answers on the No Surprises Act and State Laws · CMS
- 42 CFR 424.44, Time limits for filing claims · eCFR
- 45 CFR 149.30, Definitions · eCFR
We check every rule, code and deadline against the official source. See our editorial policy.
Common questions
Straight answers from the team that does the work.
Ask a billing lead directly. A 20-minute call, Monday to Friday, 9am to 5pm Eastern.
01What is the timely filing limit for New Mexico Medicaid claims and how does it differ for managed care plans?
Under 8.302.2.11 NMAC, state-paid Medicaid claims must be received within 90 calendar days of the date of service, or of discharge for inpatient claims. Managed care plans in Turquoise Care set their own limits in their contracts and the MCO claims manual, so confirm each plan's day count.
02Who is the Medicare MAC for New Mexico, and which jurisdiction is it?
Novitas Solutions, Inc. is the Part A and B contractor for New Mexico, in Jurisdiction H, according to the CMS MACs-by-state list. Home health and hospice claims go to Palmetto GBA and durable medical equipment claims to CGS Administrators, so those lines of business do not go to Novitas.
03Does New Mexico have its own surprise billing law, or do out-of-network disputes go to federal IDR?
New Mexico has the Surprise Billing Protection Act, sections 59A-57A-1 to 59A-57A-13 NMSA 1978. It covers state-regulated coverage and sets a payment benchmark, the 60th percentile of allowed commercial rates with a floor of 150 percent of 2017 Medicare. Self-funded plans stay under the federal NSA.
04How do I file a billing complaint or ask a question with the New Mexico Office of Superintendent of Insurance?
Use the OSI complaints page, which lists a Provider Complaint Form for providers against health insurers and a Managed Healthcare Complaint Form for patient benefit denials filed by a treating provider. OSI advises contacting the insurer first. It cannot order a company to pay a claim.
05What is the prompt payment rule for insurers in New Mexico and what interest applies when a claim is paid late?
Under section 59A-16-21.1 NMSA 1978, a health plan owes interest of one and one-half percent a month on a clean claim not paid within 30 days of electronic receipt or 45 days of manual receipt. Pharmacy electronic claims have a 14 day deadline. The plan must give reasons in writing if it cannot pay.
06How do I appeal a denied claim with the New Mexico Health Care Authority and what are the deadlines?
This page cites no HCA provider appeal rule, so it gives no appeal deadlines. What we can source is the resubmission window: 8.302.2.11 NMAC allows one 90 calendar day grace period after a claim is returned, denied or paid incorrectly. Check your plan's manual for its own appeal limits.
07Can an out-of-network ER physician group in New Mexico balance bill a patient for emergency care?
Not for a surprise bill in state-regulated coverage. Section 59A-16-21.3 NMSA 1978 says a provider shall not knowingly submit a surprise bill demanding more than in-network cost sharing, and sending one to a collection agency is an unfair practice. Ambulance transportation is excluded from the Act, and self-funded plans follow the federal NSA.
08How should a New Mexico hospital bill UB-04 claims to New Mexico Medicaid compared with Medicare under Novitas?
Both take the UB-04, but the clocks differ. New Mexico Medicaid measures its 90 days from discharge for inpatient claims, while Medicare allows 1 calendar year from the date of service. Medicaid fee-for-service goes through Turquoise Claims, managed care to the patient's plan, and Medicare to Novitas.
09Do I need to enroll with New Mexico Medicaid separately for each location and each provider?
This page cites no source that answers this, so it does not state it. What the HCA does say is that enrollment, revalidation and updates happen in the YES.NM.GOV system and that selected providers get a 60-day notice to revalidate. Our credentialing team checks the HCA enrollment matrix per client.
10What steps do I follow to dispute an out-of-network underpayment in New Mexico: open negotiation, state process or federal IDR?
First find out if the plan is fully insured or self-funded. For fully insured plans the state benchmark in section 59A-57A-13 sets the rate, so the dispute is whether the carrier paid that rate. For self-funded plans, start federal open negotiation and then IDR. Confirm the route before you start the clock.
Billing in New Mexico medical billing and payer rules? Talk to us.
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