How to Bill Fidelis Care: Prior Auth, Timelines, and Denials in 2026

:::info Quick answer Fidelis Care prior authorization requirements depend heavily on the service. Use the ProviderAccess Online portal for standard medical auths, Evolent for advanced imaging, and TurningPoint for orthopedics. Standard Medicaid PA requests take up to three business days, while expedited requests must process within 72 hours. :::

If you bill medical claims in New York State in October 2026, Fidelis Care represents a massive chunk of your accounts receivable. You cannot operate a medical practice in the five boroughs, Long Island, or Upstate without bumping into their Medicaid Managed Care, Essential Plan, or Medicare Advantage products.

Since Centene fully integrated Fidelis into its national backend over the last few years, the payer operates like a hybrid. It retains strict compliance with the New York State Department of Health (NYS DOH) Medicaid guidelines but uses Centene’s third-party vendor matrix for utilization management.

Billing Fidelis Care successfully requires setting up the right portals, understanding exactly which vendor holds the keys to your authorization, and never missing a 90-day filing deadline. Here is how to handle their system this year.

How Fidelis Care Works in the New York Market

Fidelis Care is not a monolith. It is an umbrella covering several highly distinct lines of business, and your front desk must identify exactly which plan the patient holds before you even think about generating an encounter.

The plan types dictate your reimbursement rates, your timely filing windows, and your prior authorization pathways.

Medicaid Managed Care (MMC) and HARP

This is the bread and butter of Fidelis. MMC covers standard Medicaid beneficiaries. The Health and Recovery Plan (HARP) covers Medicaid adults with severe mental illness or substance use disorders. Both operate under strict NYS DOH rules. You cannot balance-bill these patients. If you fail to get an auth, the liability falls on the provider, and you must write off the charge.

The Essential Plan (EP)

New York’s Essential Plan caters to lower-income adults who do not quite qualify for Medicaid. From a billing perspective, treat the Essential Plan just like Medicaid. The fee schedules are similar, the 90-day timely filing limit applies, and the auth rules mirror the MMC requirements.

Child Health Plus (CHP)

CHP provides coverage for children under 19. While the benefits packages look a bit different, particularly regarding dental and vision carve-outs, the core medical billing logic is identical to Fidelis Medicaid.

Medicare Advantage and Dual Advantage

Fidelis runs standard Medicare Advantage (Wellcare by Fidelis Care) and Dual Advantage (Medicare and Medicaid combined) plans. These plans follow Centers for Medicare & Medicaid Services (CMS) rules first, meaning you often get longer timely filing limits (like 120 or 365 days, depending on your contract) and different denial codes than the state plans.

Fidelis Care Prior Authorization Requirements and Vendors

You cannot guess your way through a Fidelis authorization. Sending a clinical fax to the generic Fidelis utilization management department when the CPT code actually routes to a third-party vendor is the fastest way to get a technical denial.

Fidelis Care prior authorization requirements divide your services into specific silos. Before you treat the patient, you must check the 2026 Fidelis Care Authorization Grid (updated quarterly on their provider site) to see which entity controls the CPT code.

Standard Medical and Surgical Services

For standard inpatient admissions, basic outpatient surgeries, and most in-office procedures that require approval, you will submit directly to Fidelis. Do not rely on faxing. In 2026, paper auths are a liability. Use ProviderAccess Online (the Fidelis provider portal).

You will need:

• The member’s Fidelis ID number.
• The ordering and servicing NPIs.
• Diagnosis codes (ICD-10) and exact CPT/HCPCS codes.
• Attached PDF clinicals proving medical necessity (office notes, lab results, conservative treatment history).

Advanced Imaging and Cardiology (Evolent / NIA)

Fidelis outsources heavy radiology—MRIs, CT scans, PET scans, nuclear medicine, and echocardiography—to Evolent (formerly National Imaging Associates or NIA).

You must initiate these authorizations through RadMD.com. Evolent utilizes strict clinical algorithms. If your patient needs a lumbar MRI (CPT 72148), Evolent expects to see documentation of six weeks of failed conservative therapy (physical therapy, NSAIDs) before they will approve the scan. If you submit the request without those notes, Evolent will issue an immediate pend or denial.

Orthopedic and MSK Surgeries (TurningPoint)

If your orthopedic surgeon is doing joint replacements, spinal fusions, or major MSK interventions, Fidelis utilizes TurningPoint Healthcare Solutions. TurningPoint not only reviews the medical necessity of the surgery but often reviews the specific medical devices and hardware the surgeon plans to implant. You must upload the operative plan and hardware requests directly into the TurningPoint portal.

Pharmacy and Part B Drugs

Retail pharmacy runs through Express Scripts. However, physician-administered drugs (buy-and-bill biologics, infusions, injectables in the clinic) often require authorization through the Fidelis medical benefit. High-cost oncology drugs typically route through New Century Health, another Centene partner. Always verify if the J-code requires a medical auth or a pharmacy auth.

Enrollment and Credentialing Under Centene

Getting in-network with Fidelis takes time. You are dealing with NYS DOH regulations layered on top of Centene’s corporate credentialing department. Plan for a 90 to 120-day turnaround from the moment you submit a clean application.

The OPRA Requirement

Before Fidelis will even look at your credentialing packet, the provider must be actively enrolled in New York State fee-for-service Medicaid as an OPRA (Ordering, Prescribing, Referring, Attending) provider.

This is non-negotiable under the 21st Century Cures Act. If your new physician does not have an active NYS Medicaid Management Information System (MMIS) ID, Fidelis will reject the application immediately. Get the state enrollment done first via the eMedNY portal.

CAQH ProView

Fidelis utilizes CAQH ProView for primary source verification. Ensure your CAQH profile is fully attested, and that the authorization allows Fidelis Care (or Centene) to pull the data. Your malpractice insurance, DEA, state license, and board certifications must be current in the system.

Once enrolled, keep your roster updated. In 2026, health plans face massive fines from the state for inaccurate provider directories. If you fail to terminate a departed provider within 30 days, or fail to notify Fidelis of a new billing address, your claims will deny for "provider not found" or mismatched NPIs.

Claim Submission and Timelines

Fidelis operates on tight deadlines. If you are billing the Medicaid, Child Health Plus, or Essential Plan lines of business, your timely filing limit is notoriously short.

EDI Submission

You should be submitting 99% of your claims electronically. The Fidelis Care Payer ID is 11315.

Ensure your clearinghouse is mapping the taxonomy codes correctly. New York Medicaid rules often require the provider's taxonomy code in Box 33b (or the EDI equivalent, Loop 2000A PRV segment) for claims to pass the front-end edits.

If you must drop paper (which you should only do with attachments that absolutely cannot go through the portal), mail them to the specific PO Box listed on the back of the patient's current ID card. Do not use an old address from 2023; Centene frequently consolidates lockboxes.

2026 Timelines for Fidelis Care

Missing a deadline with Fidelis means writing off the revenue. Medicaid rules do not forgive administrative delays on the provider's end.

Note: If you blow the 90-day timely filing window on a Medicaid claim, you cannot simply appeal and say you were short-staffed. You must have a valid exception, such as retroactive Medicaid eligibility or an error caused solely by Fidelis.

Handling Denials and Appeals

Fidelis Care utilizes aggressive auto-adjudication edits. When a claim denies, you need to read the precise ANSI remark codes on the 835/ERA to determine your next step. Do not blindly resubmit a denied claim; that just creates a duplicate denial.

Front-End Rejections vs. Adjudicated Denials

If a claim rejects at the clearinghouse (e.g., "Member not found for Date of Service"), Fidelis never saw it. You do not appeal this. You fix the typo in the patient's ID or DOB and submit it as a new, initial claim within your 90-day window.

If the claim makes it to the Fidelis remittance advice and denies (e.g., CO-50 for lack of medical necessity, or CO-16 for missing information), you are now on the clock for a corrected claim or an appeal.

Filing Reconsiderations and Appeals

For coding errors, missing modifiers, or wrong diagnosis codes, submit a Corrected Claim via EDI using frequency code '7'. Do not send an appeal letter for a simple typo.

For clinical denials—where Fidelis claims the service was experimental or lacked prior authorization—you must file a formal Medical Necessity Appeal.

• Where to file: Use ProviderAccess Online. The portal allows you to attach your dispute form and medical records directly to the claim number, creating a trackable reference number.
• Peer-to-Peer: If an authorization is denied clinically, the ordering physician usually has 14 days to request a peer-to-peer review with a Fidelis medical director. You must schedule this immediately. If you miss the 14-day window, the peer-to-peer option expires, and you are forced into a lengthy written appeal process.

When appealing an auth denial, do not just send a generic letter. Address the exact reason for the denial. If Fidelis denied the surgery because the patient "did not try six weeks of physical therapy," your appeal must include the specific therapy flowsheets proving they actually did. Highlight the dates. Make it impossible for the reviewer to miss the data.

Frequently asked questions

What is the Fidelis Care Payer ID for electronic claims?

The electronic Payer ID for Fidelis Care is 11315. Always verify this with your clearinghouse, as routing can occasionally depend on the specific Medicare or Medicaid product line.

How long do I have to submit an initial claim to Fidelis Care?

For Medicaid Managed Care, Essential Plan, and Child Health Plus, you have exactly 90 days from the date of service. For Medicare Advantage lines, the limit is typically 120 or 365 days, depending on your specific provider contract.

Who handles radiology prior authorizations for Fidelis?

Fidelis Care delegates advanced imaging authorizations (like CTs, MRIs, and PET scans) to Evolent, formerly known as National Imaging Associates (NIA). You must request these auths via RadMD.com.

Does Fidelis Care allow retro-authorizations?

Rarely. Retrospective authorizations are generally only permitted in specific emergency situations where obtaining prior approval was clinically impossible, or if a member was granted retroactive Medicaid eligibility covering the date of service.

How do I request a peer-to-peer review with Fidelis Care?

You must request a peer-to-peer review within 14 days of receiving a clinical denial for a prior authorization. This can be scheduled by calling the Fidelis Care utilization management department or via ProviderAccess Online.