Incident-to billing: Medicare rules for care management staff

Incident to billing is a coverage and supervision arrangement, not a separate code that makes any staff activity billable. The practice must match the personnel, setting, treatment relationship and supervision to the actual service.

For monthly care management, start with the program requirements and then check the incident-to arrangement. A staff contract, completed phone call or practitioner name on a claim does not establish all of those conditions by itself.

Incident to billing rules: the foundation before the claim

CMS defines incident-to services as auxiliary-personnel services or supplies that form an integral, although incidental, part of physician or non-physician practitioner professional services. The current conditions appear in 42 CFR 410.26. That regulation addresses Medicare Part B services furnished in a noninstitutional setting to noninstitutional patients.

The CMS overview says the physician or other eligible practitioner personally performs an initial service and remains actively involved in the treatment course. It also identifies the expense relationship, office or clinic service type, applicable state law and supervision. Do not reduce this to a rule about whose name appears on the bill.

Eligible non-physician practitioners can also supervise and bill qualifying incident-to services within the applicable requirements. CMS identifies nurse practitioners, clinical nurse specialists, certified nurse-midwives and physician assistants among the relevant practitioners. The authority comes from the benefit and applicable law, rather than a job title chosen by the practice.

Use the service-specific CMS instructions when applying the rule. A hospital or skilled nursing facility service should not be treated as an ordinary office incident-to service under this provision. If the setting or benefit is uncertain, resolve it before selecting the billing arrangement.

Incident to billing: direct supervision and the CCM exception

The regulation generally requires direct supervision, but permits designated care-management services to be furnished under general supervision. CMS specifically assigns clinical-staff CCM codes 99487, 99489, 99490 and 99439 to general supervision. The practitioner’s overall direction and control remain required.

Decision	Ordinary office incident-to service	Clinical-staff CCM
Minimum supervision	Generally direct supervision	General supervision under the CCM rule
Practitioner presence	Immediate availability under applicable direct-supervision conditions	Presence during performance is not required
2026 virtual presence	Qualifying direct supervision may use live audio-video; 010 and 090 global indicators excluded	A live video connection is not a condition of general supervision
Code selection	Use the code and requirements for the actual service	Use the appropriate monthly CCM code and qualifying time
Retained responsibility	Supervising practitioner bills and applicable conditions remain	Supervising practitioner bills; eligibility, consent and scope remain

In 2026, applicable virtual direct supervision can use real-time audio and video; audio-only is excluded. This flexibility does not change the general-supervision rule for CCM. The general supervision vs direct supervision comparison explains the current presence requirements and exclusions.

Do not infer that general supervision means independent staff practice. Staff still work under practitioner direction, and their activities must fit applicable state law, licensure and scope. The supervision category answers one part of the billing question.

Employees, contractors and whose time counts

CMS allows CCM clinical staff to be employees or people working under contract with the billing practitioner. The current auxiliary-personnel definition also recognizes specified employee, leased-employee and independent-contractor relationships. The arrangement must satisfy the applicable incident-to and state requirements.

CMS permits external clinical staff to furnish CCM, but the billing practitioner cannot fully delegate the service. The practitioner must retain the required involvement. CMS also says CCM cannot be billed when furnished by staff located outside the United States.

Time follows the code and the actual qualifying work. Codes 99487, 99489, 99490 and 99439 can include time directly spent by the billing practitioner or clinical staff, subject to the applicable rules. Practitioner time counted toward these thresholds cannot also be used to report 99491.

A staff member’s participation in a call does not establish that every minute meets the code. Review the activity, personnel qualifications and time record together. Which team members’ time counts toward each code is set in your services agreement.

Separate the contract review from the monthly service review. The agreement can describe who performs outreach, how questions reach the practitioner and who prepares documentation. It cannot make an otherwise ineligible patient or nonqualifying activity billable.

How incident-to CCM works month to month

Step 1: Confirm the patient’s CCM prerequisites

CCM requires two or more chronic conditions expected to last at least 12 months or until death, with significant risk of death, acute exacerbation or decompensation, or functional decline. Document the individual basis for eligibility. Two diagnoses on a list are not the complete eligibility assessment.

Step 2: Complete the initiating visit and consent when required

An initiating visit is required for new patients and patients not seen within the preceding year. Document written or verbal informed consent separately, including the required disclosures. Without consent, neither Medicare nor the patient can be billed for CCM.

Step 3: Assign practitioner and staff responsibilities

Identify the supervising and billing practitioner, qualified staff and the work they will perform. Confirm applicable state requirements and establish how staff obtain direction when questions arise. For contracted staff, make the practice’s review and escalation responsibilities explicit.

Step 4: Furnish and record the monthly service

Maintain the comprehensive care plan and furnish the required CCM scope elements unless a particular element is not medically indicated. Record qualifying activities, staff identity and time so the practice can assess the selected code. A monthly time total alone does not show that the service requirements were met.

Step 5: Review the claim before release

Check the code, qualifying time, consent, care-plan work and applicable same-month restrictions. Confirm that the supervising practitioner identified for the incident-to service is the appropriate biller. Resolve an unclear entry with the people who furnished the work instead of inferring missing facts.

The CCM requirements checklist provides the broader program review. Use the incident-to review alongside it, so a supervision check does not become a substitute for the full service requirements.

Consent, time and concurrent billing still need their own checks

CCM consent covers service availability, possible cost sharing, the one-practitioner-per-calendar-month rule and the right to stop services effective at month end. A staffing agreement is a different document serving a different purpose. It does not communicate those disclosures to the patient.

For example, 99490 describes the first 20 minutes of qualifying clinical-staff CCM per calendar month. That time threshold does not replace the required service scope. Conversely, a useful care-management contact does not justify a monthly code when its time and other requirements are unmet.

CMS does not allow the same practitioner to bill CCM and PCM for the same patient in the same month. Some other combinations are permitted when their separate requirements are met, but time and effort cannot be counted twice. Check the combination rather than assuming that different code labels make overlapping work reportable.

Complex CCM adds another responsibility: the billing practitioner must perform the required moderate- or high-complexity medical decision-making. Contracting with staff does not transfer that requirement away from the practitioner. Keep the practitioner’s contribution identifiable in the record.

Misreadings that lead to the wrong incident-to decision

A useful internal review asks what happened, who furnished it, who directed it and which service rule applies. Keep those answers with the underlying record. A generic supervised checkbox cannot answer every one of those questions.

If a question concerns an unfamiliar service or setting, use the current regulation and the MAC’s service-specific instructions. The CCM exception should not be extended to unrelated procedures. Equally, a general office-service summary should not erase an express care-management exception.

Define the practice’s responsibilities before the handoff

Practices considering support for chronic care management should agree on the supervision and record-review workflow before enrollment begins. Your team refers; we handle enrollment, outreach and documentation. You bill monthly under your license.

Which team members’ time counts toward each code is set in your services agreement. Keep the supervising practitioner, retained clinical responsibilities and claim review clear in the practice’s process.

Key takeaways

• Incident-to services are integral, incidental parts of a practitioner’s professional care.
• Direct supervision is the general rule; designated care-management services have an exception.
• Clinical-staff CCM uses general supervision with overall practitioner direction and control.
• Employees and contractors can qualify when the applicable requirements are met.
• The supervising practitioner bills; consent, time and service scope still apply.

Frequently asked questions about incident to billing

Who bills Medicare for an incident-to service?

Only the supervising physician or eligible practitioner may bill the incident-to service. The auxiliary staff member’s involvement does not transfer that responsibility.

Can contractors furnish incident-to CCM?

Yes, CMS permits qualifying clinical staff working under contract with the billing practitioner. Applicable state law, licensure, scope and incident-to conditions still apply.

Does CCM require the practitioner to be in the office suite?

Clinical-staff CCM codes use general supervision. That requires overall direction and control without presence during performance.

Can incident-to CCM be fully delegated?

No. CMS retains required responsibilities with the billing practitioner and does not permit complete delegation.

Can the practice count every outreach minute?

No. Time must meet the applicable code and personnel requirements, and it cannot be counted again toward another reported service.

Does an incident-to contract replace CCM consent?

No. CCM requires documented patient consent with the required disclosures. A staff agreement serves a separate purpose.

For physician practices evaluating Companian, Medicare Part B chronic care management codes 99490 and 99439 follow the CMS program requirements. Your team refers; we handle enrollment, outreach and documentation. You bill monthly under your license.

Read more: General vs direct supervision · CCM requirements

Disclosures

Companian supplies Care Advocates and documentation to physician practices nationwide. Companian is not a medical practice and does not bill Medicare. The billing practitioner keeps the care plan, every clinical decision and the claim. Patients pay the usual Medicare Part B deductible and coinsurance for these services unless other coverage pays it.

This guide summarizes CMS rules for practices nationwide and is not legal or billing advice.