What are the 7 elements of a 2026 OIG chiropractic compliance program?

The seven elements are: (1) written policies and procedures, (2) compliance leadership and oversight, (3) training and education, (4) effective lines of communication with the compliance officer and disclosure program, (5) enforcing standards through consequences and incentives, (6) risk assessment, auditing, and monitoring, and (7) responding to detected offenses and developing corrective action initiatives. These elements were updated in the November 2023 General Compliance Program Guidance (GCPG) and apply to all healthcare entities, including chiropractic practices billing Medicare.

What triggers an OIG audit for a chiropractic practice in 2026?

Common OIG audit triggers include statistical outliers in billing patterns, high volumes of 98942 (5-region manipulation) claims, billing maintenance care as active treatment with the AT modifier, repeated use of identical diagnosis codes over extended periods, prolonged care without documented improvement, missing or incomplete PART documentation, and employing individuals on the OIG exclusion list. The OIG uses data analytics to identify practices with unusual claim patterns.

Does the OIG audit Medicare Advantage chiropractic claims differently than Fee-for-Service?

Yes. The February 2026 Medicare Advantage Industry Compliance Program Guidance (ICPG) introduced new oversight standards specifically for the Medicare Advantage ecosystem. While traditional Fee-for-Service claims are reviewed through MACs and CERT audits, Medicare Advantage claims now face additional scrutiny around risk adjustment accuracy, encounter data integrity, and third-party oversight. Chiropractic practices serving Medicare Advantage patients may be subject to compliance reviews from both the OIG and the MA organization itself.

How often should I check my employees against the OIG Exclusion List in 2026?

The OIG recommends monthly checks against the List of Excluded Individuals and Entities (LEIE). While there is no statutory requirement specifying monthly frequency, the LEIE is updated monthly, and the OIG has stated that providers conducting monthly checks are in a stronger position to defend themselves if excluded persons are found on staff. Many state Medicaid contracts explicitly require monthly screening, and failure to check can result in civil monetary penalties.

What is the penalty for insufficient documentation in a 2026 OIG audit?

Penalties range from recoupment of overpayments on specific claims to civil monetary penalties of up to $50,000 or more per violation under the False Claims Act. In severe cases involving patterns of fraudulent billing, providers can face exclusion from all federal healthcare programs. With the 2024 CERT data showing a 33.6% improper payment rate for chiropractic services—with 95.5% of those errors due to insufficient documentation—the financial exposure is significant for any practice that hasn't addressed documentation gaps.

How do I use the PART criteria to defend a 98942 claim in 2026?

PART stands for Pain, Asymmetry, Range of motion, and Tissue/tone changes. To defend a 98942 (5-region) claim, you need subluxation documentation for each spinal region billed, supported by at least two of the four PART criteria—one of which must be asymmetry/misalignment or range of motion abnormality. Each region requires its own primary and secondary diagnosis codes, a chief complaint linked to the subluxation level, and clear documentation of medical necessity showing the patient is in an active treatment phase with measurable functional improvement.

What is the difference between the OIG's GCPG and the new 2026 ICPG?

The General Compliance Program Guidance (GCPG), released November 2023, provides universal compliance recommendations for all healthcare entities. The Industry Compliance Program Guidance (ICPG), released February 3, 2026, is specific to the Medicare Advantage program and addresses risk areas unique to MA organizations and their contracted providers. While the GCPG gives you the framework for building a compliance program, the ICPG adds MA-specific requirements around risk adjustment, encounter data accuracy, and third-party oversight that affect any provider treating Medicare Advantage patients.

Can a small chiropractic practice realistically build an OIG compliance program?

Yes. The OIG explicitly acknowledges that small entities have different resources and recommends scaled adaptations. For example, a solo practitioner can designate a compliance contact instead of hiring a full compliance officer. The key is documenting your policies, training staff regularly, conducting internal audits (even informal chart reviews), maintaining open communication channels for reporting concerns, and checking the LEIE monthly. A billing partner with compliance expertise can also serve as a significant compliance resource without requiring additional in-house staff.

Original Medicare vs. Medicare Advantage: A Guide to Billing & Billing Rules for Chiropractors

If you’ve ever sat in a room full of chiropractors or practice managers, you’ve probably heard this debate come up:

"Do I have to bill this Medicare Advantage plan?"

"Can I just charge my cash rate if I’m out-of-network?"

"What about the Medicare limiting charge?"

The intersection of Original Medicare Part B, private insurance contracts, and Medicare Advantage (MA) plans causes a lot of confusion.

This guide breaks down every scenario—from fully participating to completely out-of-network—so you can stay compliant, collect appropriate payment, and protect your practice.

3 Foundational Rules Every Chiropractor Must Know

Before diving into specific scenarios, you must understand three federal foundation rules:

1. Chiropractors Cannot "Opt Out" of Medicare

Medical doctors (MDs) and doctors of osteopathy (DOs) can legally "opt out" of Medicare and sign private cash contracts with Medicare patients. Chiropractors (DCs) cannot do this under federal law. You only have two choices: Participating (PAR) or Non-Participating (Non-PAR). Treating a Medicare beneficiary without enrolling in Medicare or attempting to privately contract for covered services is a compliance violation.

Source: CMS Medicare Benefit Policy Manual, Chapter 15, § 40.4 (Physicians and Practitioners Who May Not Opt Out)

2. The Mandatory Claim Submission Rule

If a Medicare beneficiary receives a service that Medicare covers (such as active spinal manipulation), you are legally required under federal law to submit a claim on their behalf. You cannot refuse to file a claim and simply collect cash.

Source: Social Security Act § 1848(g)(4) & CMS Medicare Claims Processing Manual, Chapter 1, § 70.8.8

3. Medicare Advantage (Part C) Is Federally Regulated Medicare

Medicare Advantage plans (administered by commercial carriers like Blue Cross Blue Shield, Humana, or UnitedHealthcare) are federally funded Medicare plans. Even when you treat a patient out-of-network under an Advantage plan, federal balance-billing and payment cap rules apply.

Source: Code of Federal Regulations, 42 CFR § 422.214 (Special Rules for Services Furnished by Noncontract Providers)

💡 The Commercial vs. Medicare Advantage Contracting Trap

Before reviewing the four billing scenarios, there is one crucial distinction every clinic billing department must understand:

Being "In-Network" with an insurance company’s Commercial plan does NOT mean you are "In-Network" with their Medicare Advantage plan.

Commercial insurance companies manage completely separate provider networks (panels) for their commercial lines of business versus their Medicare Advantage lines of business:

Commercial Contract: Applies to under-65, employer-sponsored, and individual commercial plans.
Medicare Advantage Rider/Contract: A separate, specific network agreement governing Medicare Advantage (Part C) beneficiaries.

Why Non-PAR Status Impacts Your Network Eligibility

Most major health insurance plans (including Blue Cross Blue Shield, Aetna, and UnitedHealthcare) require a provider to be actively enrolled as a Participating (PAR) provider in the Original Medicare Part B before they will allow you into their Medicare Advantage network.

If you choose to be Non-PAR with Original Medicare Part B, the insurer will frequently exclude you from their Medicare Advantage panel. As a result, you will be considered OUT-OF-NETWORK for their Medicare Advantage patients—even if you are fully in-network for their commercial patients!

Source Citation: CMS Managed Care Manual, Chapter 11 (Network Contracting Rules) & KMC University Compliance Directives

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Scenario Walkthrough: What Do You Do?

Original part b PAR vs Medcare adv IN NETWORK

PAR with Original Medicare | In-Network with Medicare Advantage

The Setup: You are a Participating (PAR) provider with Original Medicare AND you signed a specific provider contract for the insurer’s Medicare Advantage panel (e.g., BCBS MA).
Do You Have to Bill? YES. You are contractually and legally required to bill the Medicare Advantage plan.
How Pricing Works: Your signed network contract overrides everything else. You bill the Advantage plan and collect only the copayment, coinsurance, or deductible specified by the patient’s plan.
Can You Charge Cash Rates? NO. Balance-billing or charging self-pay rates is strictly prohibited by your provider agreement.

Source Citation: CMS Managed Care Manual, Chapter 4 (Benefits and Beneficiary Protections) & KMC University Compliance Directives

Original part b PAR vs Medicare adv OUT OF NETWORK

PAR with Original Medicare | Out-of-Network with Medicare Advantage

Sub-Scenario A: The Plan HAS Out-of-Network Benefits (e.g., PPO or PFFS)

Do You Have to Bill? YES. Because out-of-network coverage exists, a billable benefit is available under the patient's plan.
How Pricing Works: You submit the claim to the Advantage plan as an out-of-network provider. However, federal law protects the enrollee. Because you are PAR with Original Medicare, the total combined payment (from insurance and patient cost-sharing) cannot exceed the Original Medicare Allowed Fee.
Can You Charge Cash Rates? NO. You cannot charge standard cash prices if they exceed the Original Medicare allowed rate.

Sub-Scenario B: The Plan HAS NO Out-of-Network Benefits (e.g., HMO)

Do You Have to Bill? NO.
How Pricing Works: Because the HMO plan provides zero coverage for out-of-network providers, no billable insurance benefit exists under their plan.
Can You Charge Cash Rates? YES. You may treat the patient on a self-pay basis and charge your usual office cash rate.
Required Protocol: Formally verify zero out-of-network benefits with the carrier, note the verification in the patient’s chart, and have the patient sign a Financial Responsibility Form / Good Faith Estimate acknowledging they are out-of-network and choosing self-pay before care is delivered.

Source: 42 CFR § 422.214; CMS Medicare Advantage Out-of-Network Payment Guide

Original Med part B NON PAR vs Med Adv IN NETWORK

Non-PAR with Original Medicare | In-Network with Medicare Advantage

The Setup: You chose Non-Participating (Non-PAR) status with Original Medicare Part B, but you signed an in-network provider contract with the commercial carrier’s Medicare Advantage plan (e.g., BCBS MA).
Do You Have to Bill? YES.
How Pricing Works: Your signed commercial contract with the Advantage plan overrides your Non-PAR Medicare status. You must bill the Advantage plan as an in-network provider and collect only the in-network copay or deductible.
Can You Charge the Medicare Limiting Charge or Cash? NO. Your network agreement governs your fee structure. You cannot apply Medicare's 115% limiting charge or self-pay cash prices.

Source: CMS Managed Care Manual, Chapter 11; KMC University Guidelines on MA Network Overrides

Org Med part b NON PAR vs Med adv OUT OF NETWORK

Non-PAR with Original Medicare | Out-of-Network with Medicare Advantage

Sub-Scenario 4A: The Plan HAS Out-of-Network Benefits (e.g., PPO or PFFS)

Do You Have to Bill? YES.
How Pricing Works: As a non-contracted provider treating an Advantage PPO patient, federal law caps what you can collect. You cannot collect more than the Medicare Limiting Charge (which is 115% of the Non-PAR Medicare allowed fee).
Can You Charge Cash Rates? NO. You cannot charge standard office cash prices if they exceed the Medicare limiting charge. You collect up to the limiting charge from the patient (or bill unassigned), submit the claim to the Advantage plan, and the plan reimburses the patient based on their out-of-network benefit tier.

Sub-Scenario 4B: The Plan HAS NO Out-of-Network Benefits (e.g., HMO)

Do You Have to Bill? NO.
How Pricing Works: Because the HMO plan offers zero out-of-network coverage, no billable insurance benefit exists.
Can You Charge Cash Rates? YES. You may charge your standard practice cash rates.
Required Protocol: Verify $0 out-of-network coverage, document the call in the patient’s record, and obtain a signed Financial Responsibility agreement / Good Faith Estimate prior to rendering care.

Source: Social Security Act § 1848(g); 42 CFR § 422.214; CMS Medicare Claims Processing Manual, Ch. 1 § 70.8.8

Quick Reference Billing Matrix

Important Note: Chiropractic vs. Physical Therapy (PT)

Chiropractic Covered Scope: Original Medicare Part B only covers manual manipulation of the spine to correct a subluxation (CPT 98940–98942). Examinations, X-rays, modalities, and maintenance care are non-covered under Original Medicare Part B. However, many Medicare Advantage plans DO cover exams, X-rays, and therapy modalities. Always verify coverage benefits with the Advantage carrier.
Physical Therapy (PT): Private practice physical therapists are also mandatory Medicare providers. Unlike chiropractic care, PT evaluations and therapeutic procedures are covered Part B benefits. PT practices follow these identical Medicare Advantage in-network vs. out-of-network billing rules.

Source: CMS Medicare Benefit Policy Manual, Chapter 15, § 30.5 (Chiropractic) & § 220 (Physical Therapy)

Want to Keep This Guide Handy at Your Practice?

Managing Medicare Advantage billing isn't just about getting paid—it's about protecting your practice from costly compliance audits and front-desk mistakes. Whether you need a quick-reference guide for your staff or personalized expert guidance on your contracts, we’ve got you covered.

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Source Directory & Citations

Centers for Medicare & Medicaid Services (CMS):
- Social Security Act § 1802 (Opt-Out Provisions)
- Social Security Act § 1848(g)(4) (Mandatory Claim Submission)
- 42 CFR § 422.214 (Rules for Non-Contracted
- Providers Treating MA Enrollees)
- CMS Medicare Benefit Policy Manual, Chapter 15 (§ 30.5, § 40.4, § 220)
- CMS Medicare Claims Processing Manual, Chapter 1 (§ 70.8.8)
- CMS Medicare Managed Care Manual, Chapter 4 (Benefits and Beneficiary Protections)
Healthcare Compliance & Legal Resources:
- KMC University (Kathy Mills Chang) — Chiropractic Medicare & Medicare Advantage Compliance Guidelines
- ChiroHealthUSA — Provider Status in Medicare Advantage Plans
- American Chiropractic Association (ACA) — Participating vs. Non-Participating Guidelines