Humana Billing Guide for Treatment Centers

Humana

Humana Inc.

Guide for behavioral health providers working with Humana, covering credentialing, prior authorization, VOB, and claims billing for treatment facilities.

Quick Reference

Payer Type

National Commercial

Parent Company

Humana Inc.

Headquarters

Louisville, KY

Provider Portal

Open Portal

Portal Guide

View Guide →

Credentialing

CAQH ProView

Timeline

60-90 days

Coverage

1 states

Last Verified

Mar 15, 2026

Published

Mar 15, 2026

Reading Time

12 min

Covered Levels of Care

• Detoxification (Medically Managed and Monitored)
• Residential Treatment
• Partial Hospitalization (PHP)
• Intensive Outpatient (IOP)
• Outpatient Treatment

Medical Necessity Criteria

• Humana Proprietary Clinical Guidelines
• ASAM Criteria (for SUD level of care placement)

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Overview

Humana Inc. is one of the largest health insurance companies in the United States, headquartered in Louisville, Kentucky. Founded in 1961, the company serves approximately 15 million medical members as of 2025 through a diversified portfolio of commercial group, individual, Medicare Advantage, Medicaid, and military (TRICARE) plans. Humana has grown significantly through its Medicare Advantage business, which represents a substantial portion of its membership base.

For behavioral health treatment providers, Humana represents a meaningful payer across multiple lines of business. The company covers substance use disorder (SUD) treatment and mental health services across its commercial and government plans, subject to medical necessity and plan-specific benefit designs. Humana’s behavioral health operations coordinate utilization management, network development, and clinical review for both mental health and addiction treatment services.

Humana operates nationwide and contracts with a broad network of behavioral health facilities, including residential treatment centers, detox facilities, and outpatient programs. The company has invested in value-based care arrangements and population health management initiatives that increasingly affect how behavioral health providers interact with the plan around quality metrics and outcomes reporting.

Behavioral Health Coverage

Humana covers behavioral health services across multiple levels of care for both substance use disorders and mental health conditions. Covered levels of care include medically managed detoxification, residential treatment, partial hospitalization programs (PHP), intensive outpatient programs (IOP), and standard outpatient treatment. Coverage is subject to the member’s specific benefit plan, medical necessity determination, and applicable state mandates.

For substance use disorder treatment, Humana uses a combination of proprietary clinical guidelines and the American Society of Addiction Medicine (ASAM) Criteria to determine appropriate level of care placement. Medical necessity reviews assess the severity of the condition, functional impairment, treatment history, and the least restrictive level of care that can safely and effectively address the member’s needs. Mental health services are evaluated using Humana’s internal clinical criteria, which incorporate evidence-based standards.

Federal mental health parity law (MHPAEA) requires Humana to apply behavioral health benefits on par with medical and surgical benefits. This means quantitative treatment limits, financial requirements, and non-quantitative treatment limitations for behavioral health cannot be more restrictive than those applied to medical benefits. However, specific benefit designs vary by plan, and providers should verify each member’s individual coverage before admission.

Medicare Advantage

Humana is the second-largest Medicare Advantage carrier in the United States, serving approximately 5.5 million MA members as of 2025. Behavioral health benefits on Humana MA plans follow the CMS Medicare parity framework: all MA plans must cover outpatient mental health at parity with Original Medicare Part B (typically 20 percent coinsurance after the deductible or the plan’s equivalent cost-share), and Humana’s MA plan designs generally match or improve on that baseline. Inpatient psychiatric hospitalization follows Medicare’s 190-day lifetime limit for services in freestanding psychiatric hospitals — a nuance that does not exist on Humana commercial plans.

Operationally, several rules diverge from Humana commercial. Timely filing for non-contracted providers on Humana MA is one calendar year from the date of service per CMS rules; contracted providers follow the contract terms, most commonly 90 days. Appeals follow the CMS five-level Medicare Advantage appeals pipeline — reconsideration, Independent Review Entity (IRE), Administrative Law Judge (ALJ), Medicare Appeals Council, and federal court — not Humana’s internal commercial appeal process. Prior authorization is required for inpatient and most partial-hospitalization admissions; Humana still uses Availity for real-time MA transactions. The CMS two-midnight rule applies to MA inpatient admissions beginning contract year 2024 and should inform admission-decision documentation for Humana MA members. When a member is dual-eligible for Medicare and Medicaid, coordinate benefits per the member’s Medicaid state rules because Humana MA is primary for Medicare-covered services.

Credentialing and Provider Enrollment

Humana uses CAQH ProView as its primary credentialing platform. Providers seeking to join the Humana network must maintain a current, attested CAQH ProView profile with complete information including licensure, malpractice insurance, education, work history, and facility-specific details. The credentialing process typically takes approximately 60 to 90 days from the date Humana receives a complete application, though timelines can vary.

To initiate credentialing, contact Humana’s provider recruitment or network development team to confirm network need in your geographic area. Humana periodically evaluates network adequacy by region and specialty, and acceptance of new providers may depend on current network capacity. Once a network need is confirmed, Humana will pull your CAQH ProView data and begin the verification process.

Facility credentialing requires additional documentation beyond individual provider credentials. Treatment centers should be prepared to submit current state licenses, accreditation certificates (Joint Commission, CARF, or state equivalent), Medicare and Medicaid certification where applicable, professional liability insurance, and organizational structure documents. Ensure all licenses are current and that your CAQH profile reflects the most recent attestation date.

Recredentialing generally occurs on a three-year cycle. Humana will typically notify providers in advance of recredentialing deadlines, but maintaining a continuously current CAQH ProView profile is the best way to ensure smooth recredentialing without gaps in network participation.

Verification of Benefits (VOB)

Verifying member benefits before admission is essential for behavioral health facilities working with Humana. Benefits verification confirms coverage status, plan type, deductible and out-of-pocket amounts, coinsurance or copay requirements, covered levels of care, and any plan-specific exclusions or limitations.

The primary method for verifying Humana benefits is through the Availity portal at availity.com. Availity provides real-time eligibility and benefits inquiries that return plan-level detail for behavioral health services. Providers can also submit HIPAA 270/271 electronic eligibility transactions through their clearinghouse or practice management system.

For complex cases or when electronic verification does not return sufficient detail, providers can call Humana’s provider services line. Contact provider services for current phone numbers, as Humana routes calls based on the member’s plan type (commercial, Medicare Advantage, or Medicaid). When calling, have the member ID number, date of birth, and the specific CPT or revenue codes you plan to bill available for the representative.

Keep in mind that a benefits verification is not a guarantee of payment. Authorization requirements, medical necessity determinations, and claims adjudication processes still apply. Document all VOB details including the representative name, reference number, date, and specific benefits quoted for your records.

Prior Authorization Requirements

Humana requires prior authorization for most inpatient and residential behavioral health admissions, including medically managed detoxification, residential treatment, and in some cases partial hospitalization programs. Outpatient and intensive outpatient services may not require prior authorization under all plans, but providers should verify authorization requirements for each member’s specific benefit.

Authorization requests can be submitted through the Availity portal or by contacting Humana’s behavioral health utilization management team by phone. When submitting a request, include comprehensive clinical documentation: current diagnosis, presenting symptoms, substance use history, previous treatment episodes, current medications, functional assessment, and the proposed treatment plan with anticipated length of stay.

Concurrent reviews are required for continued stay authorization. The frequency of concurrent review varies by level of care, typically approximately every three to seven days for residential treatment and more frequently for detoxification services, though intervals can vary. Providers must submit updated clinical information demonstrating ongoing medical necessity, treatment progress, and discharge planning.

When an authorization request is denied, Humana issues a written determination letter outlining the denial reason and the clinical criteria that were not met. Providers can request a peer-to-peer review with a Humana medical director to discuss the clinical rationale before pursuing a formal appeal. Peer-to-peer reviews are a valuable opportunity to present additional clinical context that may not have been captured in the initial documentation.

Claims and Billing

Humana accepts electronic claims submission through Availity and through standard EDI 837 transactions via clearinghouses. Facilities submit institutional claims (UB-04/837I format), and professional claims use the CMS-1500/837P format. Electronic submission is strongly preferred and typically results in faster adjudication.

Timely filing deadlines for Humana vary by plan type but are generally approximately 365 days from the date of service for commercial plans, though specific deadlines may vary. Medicare Advantage plans follow CMS timely filing rules. Providers should confirm the specific timely filing window for each claim, as contract terms may specify shorter deadlines. Missing the timely filing deadline results in automatic denial with limited appeal rights.

Common denial reasons for behavioral health claims include lack of prior authorization, medical necessity not met, missing or incorrect diagnosis codes, billing for non-covered services, and coordination of benefits issues. Ensure that authorization numbers are included on all claims, diagnosis codes accurately reflect the clinical presentation, and revenue codes align with the authorized level of care.

For denied claims, Humana’s standard appeals process generally allows providers to submit a first-level appeal within approximately 180 days of the denial date, though this timeframe can vary by plan and state. Appeals should be accompanied by the original claim, the denial letter, and supporting clinical documentation. If the first-level appeal is unsuccessful, providers may pursue additional levels of appeal or request external review depending on the plan type and applicable state regulations.

Payer Operations Quick Reference

Mid-task operational data for Humana billers. Two framing facts: Availity is Humana’s designated provider portal (eligibility, auth, claims, ERA all run through it), and Humana’s book is Medicare Advantage-heavy, so CMS rules — not Humana’s commercial terms — govern many of your claims. Phone numbers and payer IDs change; confirm against humana.com/provider ↗ and availity.com ↗ before relying on any value here.

Provider phone numbers

Phone-tree shortcuts are intentionally omitted: we only publish IVR navigation verified first-hand with a date.

Payer IDs and EDI

• Primary Humana payer ID: 61101, professional and institutional, most plans.
• Some Humana products and delegated vendor arrangements use separate IDs — match the member card against your clearinghouse payer list.
• ERA/ 835 and EFT enrollment run through Availity.

Timely filing limits

Cross-payer table: /denial-code-timely-filing.

Claims and appeals addresses

• Electronic first: 837P/837I via Availity or clearinghouse under payer ID 61101; paper claim addresses vary by plan — use the member ID card or EOP.
• Appeals: commercial first-level appeals generally due within ~180 days of denial at the address on the EOP. Medicare Advantage denials follow the CMS five-level appeals pipeline (reconsideration → IRE → ALJ → Appeals Council → federal court) with CMS deadlines — do not run MA appeals through commercial workflows. Expedited appeals are available when continued treatment is at risk.

Credentialing contacts

• CAQH ProView ↗ + network-need confirmation from Humana network development before applying; recredentialing every 36 months. See insurance credentialing.
• TRICARE East is Humana Military — a separate contract, separate credentialing, separate rules; see TRICARE.

Prior-auth quirks for behavioral health levels of care

Operational data last reviewed 2026-06-11; quarterly re-verification cadence applies. See /rcm for how automates Humana eligibility, MA-vs-commercial routing, and appeal deadline tracking.

• Detox and residential require prior authorization on nearly all plans; PHP frequently does; IOP/outpatient vary by plan — verify per member.
• Concurrent review cadence: roughly every 3–7 days for residential and more frequently for detox — faster than most national payers.
• Criteria: Humana proprietary guidelines plus ASAM Criteria for SUD placement.
• Medicare Advantage quirks: the two-midnight rule applies to MA inpatient admissions; freestanding psychiatric hospital stays count against Medicare’s 190-day lifetime limit; dual-eligibles coordinate with state Medicaid as secondary.
• Facility claims bill 837I/UB-04 with the authorization number on the claim.

Frequently Asked Questions

Humana generally covers a range of behavioral health services including medically managed detoxification, residential treatment, partial hospitalization programs, intensive outpatient programs, and outpatient therapy. Coverage depends on the member's specific plan, medical necessity, and whether the provider is in-network. Substance use disorder and mental health services are subject to federal parity requirements.

Humana generally requires prior authorization for most inpatient and residential behavioral health admissions, though specific requirements may vary by plan. Providers typically submit clinical documentation through the Availity portal or by calling Humana's behavioral health utilization management line. Concurrent reviews are typically required approximately every 3 to 7 days depending on the level of care, though intervals can vary. Peer-to-peer reviews are generally available when initial requests are denied.

Humana Military is a separate division that administers the TRICARE East Region contract for the Department of Defense. TRICARE benefits, networks, and authorization requirements are distinct from commercial Humana plans. Providers must credential separately for TRICARE through Humana Military, and clinical criteria follow Department of Defense guidelines rather than Humana's commercial policies.

Credentialing with Humana through CAQH ProView typically takes approximately 60 to 90 days from the date of a complete application, though timelines can vary. Delays commonly occur due to incomplete CAQH profiles, missing malpractice documentation, or pending state license verifications. Keeping your CAQH profile current and responding promptly to requests for additional information helps avoid extended timelines.

Humana generally allows providers to submit first-level appeals within approximately 180 days of a claim denial, though this timeframe can vary by plan and state. Appeals should include the denial letter reference number, supporting clinical documentation, and a written explanation of medical necessity. External review is generally available after internal appeal exhaustion. Providers can typically request expedited appeals for urgent situations where continued treatment is at risk.

Humana's main provider services line is 800-457-4708, with calls routed by the member's plan type (commercial, Medicare Advantage, or Medicaid). Behavioral health utilization management may route to a dedicated line shown on the member's ID card. Availity chat is often faster for claims-status questions. Confirm current numbers at humana.com/provider before calling, as payer phone numbers change.

Humana's primary electronic payer ID is 61101 for both professional and institutional claims on most plans. Some Humana products and delegated arrangements use different IDs, so match the member card against your clearinghouse payer list before submitting. Humana transacts through Availity as its designated provider portal.

Humana commercial plans generally allow approximately 365 days from the date of service, but contracted providers should check their agreement — contract terms commonly specify shorter windows such as 90 days. Medicare Advantage follows CMS rules: one calendar year for non-contracted providers, contract terms for contracted providers.

Key Billing Concepts

Revenue Cycle Resources

This guide is provided for informational purposes only and does not constitute legal, regulatory, or professional advice. Payer requirements, phone numbers, and portal URLs are subject to change. Always verify current information directly with the payer. is not affiliated with the insurance companies described on this page.

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Reference tables

Common questions

Official sources

• humana.com/providerhumana.com