Highmark for Behavioral Health Providers

Highmark

Highmark Inc.

Highmark BCBS provider guide for behavioral health — credentialing, VOB, prior auth, billing across PA, DE, WV, and NY (Highmark Health network).

Quick Reference

Payer Type

Blue Cross Blue Shield

Parent Company

Highmark Health

Headquarters

Pittsburgh, PA

BH Division

Highmark Behavioral Health

Provider Portal

Open Portal

Portal Guide

View Guide →

Credentialing

CAQH ProView

Timeline

60-120 days

Coverage

4 states

Last Verified

Apr 19, 2026

Published

Apr 19, 2026

Reading Time

8 min

Covered Levels of Care

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

Medical Necessity Criteria

• MCG (Milliman Care Guidelines)
• ASAM Criteria (for substance use disorders)
• Highmark Medical Policy

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Overview

Highmark Inc. is one of the largest Blue Cross Blue Shield licensees in the United States and serves as the Blue plan for four states: Pennsylvania (western and central), Delaware, West Virginia, and New York (western and northeastern). Highmark is part of Highmark Health ↗, a nonprofit integrated healthcare organization headquartered in Pittsburgh, Pennsylvania.

Highmark operates under multiple regional brand names reflecting its BCBS licensure areas: Highmark Blue Cross Blue Shield covers 29 western Pennsylvania counties, Highmark Blue Shield covers 21 central Pennsylvania counties and the Lehigh Valley, Highmark BCBS Delaware covers Delaware, Highmark BCBS West Virginia covers West Virginia, and Highmark Blue Cross Blue Shield of Western New York and Highmark BCBS of Northeastern New York serve their respective New York regions.

What distinguishes Highmark from most other BCBS licensees is its integrated delivery network structure. Highmark Health also owns Allegheny Health Network (AHN), a multi-hospital system across western Pennsylvania and parts of New York. This integrated payer-provider arrangement means that Highmark’s behavioral health strategy frequently overlaps with AHN’s clinical programs, which can affect in-network steering, contracting leverage, and referral dynamics for independent treatment centers operating in the Highmark footprint.

Behavioral Health Coverage

Highmark covers behavioral health services across multiple levels of care, including medically managed detoxification, residential treatment, partial hospitalization programs (PHP), intensive outpatient programs (IOP), and standard outpatient treatment. Coverage specifics depend on the individual member’s plan design, with employer-sponsored plans, individual marketplace plans, Medicare Advantage plans, and Medicaid managed care plans all having different benefit structures and cost-sharing arrangements.

Highmark generally evaluates medical necessity using MCG (Milliman Care Guidelines) for mental health admissions, supplemented by the ASAM Criteria for substance use disorder placements and Highmark’s own medical policy bulletins. State-specific requirements apply on top of these baseline criteria, particularly for Medicaid managed care products and state marketplace plans.

For treatment centers operating across multiple Highmark states, it is worth noting that while the Highmark BCBS plans share common infrastructure and medical policies, regulatory differences between states (licensure, Medicaid contracts, state insurance commissioner rules) can produce operational differences in authorization turnaround, covered services, and appeal rights. Pennsylvania, Delaware, West Virginia, and New York each have distinct behavioral health parity enforcement environments that affect how Highmark administers benefits in each market.

Credentialing and Provider Enrollment

Highmark uses CAQH ProView as the foundation of its credentialing process. Before applying to join the Highmark network, ensure your CAQH ProView profile is complete, attested, and up to date. You can then submit a participation request through the Highmark Provider Resource Center ↗ or directly through Highmark’s provider enrollment team.

The credentialing timeline for Highmark typically ranges from approximately 60 to 120 days, though timelines can vary based on application completeness, state-specific regulatory requirements, and volume. If you operate in multiple Highmark states, expect to complete separate credentialing in each state because each BCBS license operates under its own state regulatory framework. Commonly required documents include current state facility licenses (issued by the state where services are delivered), individual clinical staff licenses, professional liability insurance with adequate coverage limits, accreditation documentation (CARF or Joint Commission), DEA registrations for prescribing providers, an organizational NPI, a completed W-9, and a current program description.

Highmark generally conducts site visits as part of facility credentialing, particularly for residential treatment centers and detox programs. Be prepared to demonstrate compliance with state licensing requirements, accreditation standards, and Highmark’s facility quality standards. Recredentialing generally occurs every 36 months. Maintain your CAQH ProView attestation every 120 days and report any material changes to your facility, licensure, or staffing promptly, as specific reporting timelines vary by plan and contract.

Verification of Benefits (VOB)

Verification of benefits for Highmark members should be performed through the Highmark Provider Resource Center ↗, which authenticates through Availity for secured transactions. VOB can also be performed by calling the provider services number on the back of the member’s insurance card or electronically through EDI 270/271 transactions via your clearinghouse.

When verifying benefits, confirm: active coverage status and effective dates, behavioral health benefit availability, covered levels of care for both mental health and substance use disorders, deductible amounts and year-to-date accumulations, coinsurance or copay requirements for each level of care, out-of-pocket maximum and current status, any day or visit limitations, prior authorization requirements by level of care, whether the member has out-of-network benefits, and whether the member’s plan is a BlueCard plan administered by a different BCBS licensee.

Highmark’s plan designs vary significantly between employers and product types. Self-funded employer plans can have very different behavioral health benefit structures than fully insured plans. Never rely on assumptions based on previous Highmark patients. Verify benefits individually for every admission and document the verification date, time, reference number, and representative name. For Medicaid managed care and Medicare Advantage plans administered by Highmark, benefits are determined by the government program rather than Highmark’s commercial benefit structures.

Prior Authorization Requirements

Highmark generally requires prior authorization for residential treatment, partial hospitalization, intensive outpatient programs, and inpatient detoxification services across its commercial plans, though specific requirements vary by plan design and state. Outpatient services generally do not require prior authorization for in-network providers, though some plan designs may have session thresholds or notification requirements.

Prior authorization requests can be submitted through the Highmark Provider Resource Center ↗, by calling Highmark’s behavioral health utilization management line, or through electronic prior authorization platforms. The request should include a comprehensive clinical assessment, DSM-5 diagnoses, the recommended level of care with clinical justification, a treatment plan with measurable objectives, and documentation addressing MCG criteria for mental health cases or all relevant ASAM dimensions for substance use disorder cases.

Concurrent review is a standard component of Highmark’s authorization process. For residential treatment, reviews typically occur approximately every 5 to 7 days. For PHP, concurrent reviews are generally conducted every 7 to 14 days. For IOP, reviews may occur every 2 to 4 weeks. These intervals can vary by plan and clinical circumstances. Each concurrent review requires updated clinical documentation demonstrating progress, ongoing medical necessity, and plans for continued treatment or step-down.

If a prior authorization request is denied, request a peer-to-peer review promptly so your treating clinician can discuss the case directly with the Highmark medical director. Document all peer-to-peer conversations including the date, participants, and outcome.

Claims and Billing

Highmark accepts claims through electronic submission and paper submission. Electronic claims should be submitted in 837I (institutional) or 837P (professional) format through your clearinghouse or through Availity. Paper claims use the UB-04 form for institutional claims and CMS-1500 for professional claims. Each Highmark regional entity may operate its own payer ID, so confirm the correct ID with your clearinghouse for each specific member’s plan.

Timely filing windows for Highmark generally range from 180 days to 365 days from the date of service, though this varies by plan type, state, and contract. Commercial plans often use a 365-day window for in-network claims, while Medicare Advantage plans follow CMS requirements and Medicaid managed care plans follow state-specific deadlines. Out-of-network claims often have a shorter filing window. BlueCard claims for out-of-state Blue plan members are billed through Highmark but follow the member’s home plan processing rules. Always check the applicable plan’s requirements to ensure compliance, as claims submitted after the timely filing deadline are typically denied without appeal rights.

Common denial reasons for behavioral health claims with Highmark include lack of prior authorization, medical necessity not established, timely filing exceeded, coding errors, coordination of benefits issues, and services rendered by non-credentialed providers. Highmark’s appeal process generally includes internal appeal levels, with first-level appeals typically filed within 180 days of the adverse determination, though timeframes may vary by plan and state. External review through an independent review organization is typically available after exhausting internal appeals, as required by applicable state and federal regulations.

Key Contact Information

• Provider Portal: https://providers.highmark.com ↗ (Highmark Provider Resource Center, authenticated via Availity)
• Credentialing: CAQH ProView ( https://proview.caqh.org ↗ ) for application; contact Highmark provider enrollment for status
• Prior Authorization: Contact Highmark behavioral health utilization management at the number on the member’s insurance card or submit through the Provider Resource Center
• Verification of Benefits: Call the provider services number on the member’s insurance card or use the Provider Resource Center for electronic verification
• Claims Submission: Electronic via clearinghouse (confirm correct Highmark payer ID with your clearinghouse for each state and product type)
• Claims Mailing Address: Varies by regional plan and product; refer to the member’s insurance card or the Provider Resource Center for the correct address
• Corporate Parent: Highmark Health ( https://www.highmarkhealth.org ↗ )

Frequently Asked Questions

Highmark is an independent Blue Cross Blue Shield licensee in four states: Pennsylvania (western and central PA, plus the Lehigh Valley), Delaware, West Virginia, and New York (western and northeastern NY). Within Pennsylvania, Highmark operates as Highmark Blue Cross Blue Shield in 29 western counties and as Highmark Blue Shield in 21 central PA and Lehigh Valley counties. In New York, Highmark operates through separate regional subsidiaries. Because Highmark's footprint includes multiple state regulatory environments, treatment centers working across the Highmark region should expect some state-level differences in Medicaid contracts, marketplace products, and utilization management. Always verify which specific Highmark entity administers each member's benefits through the [Highmark provider portal](https://providers.highmark.com).

Highmark generally requires prior authorization for residential treatment, partial hospitalization, intensive outpatient programs, and inpatient detox across its commercial BCBS plans, though specific requirements vary by plan design and state. Authorization requests are typically submitted through the [Highmark Provider Resource Center](https://providers.highmark.com), which integrates with [Availity](https://www.availity.com) for authenticated transactions. Highmark generally evaluates medical necessity using MCG (Milliman Care Guidelines) for mental health admissions and the ASAM Criteria for substance use disorder placements, supplemented by Highmark's own medical policies. Concurrent review for residential and PHP care generally occurs on a fixed interval, with clinical documentation required at each review point. Always verify the current authorization requirements for each specific member.

Highmark credentialing uses CAQH ProView as the foundation. Before applying, ensure your [CAQH ProView](https://proview.caqh.org) profile is complete, attested, and up to date. Applications and facility-level enrollment are submitted through Highmark's provider enrollment team, with ongoing transactions managed through the [Highmark Provider Resource Center](https://providers.highmark.com) and Availity. The timeline generally runs approximately 60 to 120 days, though it can vary based on application completeness, state-specific regulatory requirements, and volume. Commonly required documents include state facility licenses, individual clinician licenses, professional liability insurance, accreditation (CARF or Joint Commission), DEA registrations for prescribers, an organizational NPI, and a completed W-9. For facility-level credentialing, expect a site visit for residential and detox programs. Recredentialing generally occurs every 36 months.

Highmark Inc. is part of Highmark Health, an integrated nonprofit organization that also owns Allegheny Health Network (AHN), a multi-hospital delivery system across western Pennsylvania and parts of New York. This integrated payer-provider structure means that Highmark members receiving care within the Allegheny Health Network are generally treated in-network, and some clinical programs (including behavioral health) are coordinated between Highmark and AHN. For independent treatment centers outside of AHN, this has practical implications: Highmark may direct members toward AHN programs for certain levels of care, and out-of-network rates for competing facilities may be meaningfully different from in-network rates. Understanding Highmark's integrated delivery footprint is important when negotiating contracts and marketing to referral sources.

Timely filing windows for Highmark generally range from 180 days to 365 days from the date of service, though specific deadlines vary by plan, product type, and contract. Commercial and employer-sponsored plans typically use a 365-day window for in-network claims, while Medicare Advantage plans follow CMS timely filing requirements, and Medicaid managed care plans follow state-specific deadlines that can be shorter. Out-of-network claims often have a shorter filing window than in-network claims. BlueCard claims for out-of-state Blue plan members are billed through Highmark but follow the member's home plan processing rules. Always verify the applicable plan's requirements through the [Highmark Provider Resource Center](https://providers.highmark.com) before submitting, as claims filed after the deadline are typically denied without appeal rights.

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