Learn what APCM is in 2026, how it works, HCPCS codes G0556–G0558, eligibility, service elements, reimbursement, and CCM vs PCM differences.
Medicare's care management landscape underwent its most significant structural change in years when Advanced Primary Care Management (APCM) launched on January 1, 2025. Unlike Chronic Care Management or Principal Care Management - which bill by the minute - APCM pays a monthly bundled rate based on what a provider makes available to patients, not how many minutes are logged. For primary care practices managing large Medicare panels, this shift from time-tracking to activity-based billing is clinically and operationally significant. Here is exactly what APCM is, how it works, and what providers need to understand before implementing it in 2026.
What Is APCM?
Advanced Primary Care Management services combine elements of several existing care management and communication technology-based services - including Principal Care Management (PCM), Chronic Care Management (CCM), and Transitional Care Management - into a single bundled monthly payment. The program reflects CMS's vision of what advanced primary care should look like: proactive, coordinated, risk-stratified, and continuously available.
Understanding how APCM fits within the broader shift toward value-based payment models is foundational for practices evaluating whether to participate. The CMS overview of Alternate Payment Models explains how APCM aligns with CMS's broader goal of moving all Medicare beneficiaries into accountable care relationships by 2030.
Who Can Bill APCM and Who Qualifies?
Starting January 1, 2025, APCM can be billed by physicians and qualified non-physician practitioners (NPPs) such as nurse practitioners (NPs), physician assistants (PAs), and clinical nurse specialists (CNSs) who manage a patient’s overall primary care needs. FQHCs and Rural Health Clinics are also eligible to bill APCM services.
APCM is available to all Medicare beneficiaries, including patients with chronic conditions and those needing preventive or coordinated care support. The program focuses on improving care continuity, patient access, and long-term health management.
Eligible Providers
- Physicians
- Nurse Practitioners (NPs)
- Physician Assistants (PAs)
- Clinical Nurse Specialists (CNSs)
- FQHCs and Rural Health Clinics
Eligible Patients
- Medicare beneficiaries with chronic conditions
- Patients needing preventive care coordination
- Individuals requiring ongoing follow-up and medication management
Auxiliary staff may also deliver APCM services under general supervision, allowing practices to provide continuous patient support without requiring the billing provider to be physically present.
The Three APCM Billing Codes and 2026 Reimbursement
CMS established three HCPCS codes for APCM, stratified by patient complexity:
The 2026 Medicare Physician Fee Schedule delivered approximately 10% reimbursement increases across all three APCM codes - and CMS also introduced new optional G-codes allowing Behavioral Health Integration (BHI) services to be billed alongside APCM, a stacking opportunity previously unavailable.
Per the Medicare Physician Fee Schedule Look-Up Tool, actual rates vary by geographic locality and Medicare Administrative Contractor. G0557 is the most commonly applicable code - nearly four in five Medicare beneficiaries have two or more chronic conditions.
The 13 APCM Service Elements
Rather than tracking minutes, APCM requires that providers make 13 service elements available to enrolled patients each month. These elements must be present as capabilities - not necessarily delivered in full every month:
- Patient consent - Obtained once at enrollment; documented in the medical record
- Initiating visit - Required for new patients or those not seen in the prior three years; the Annual Wellness Visit qualifies
- 24/7 access to care - Patients and caregivers must be able to reach the care team around the clock for urgent needs
- Continuity of care - Patients can schedule successive appointments with a designated team member
- Alternative care delivery - Capability for home visits, telehealth, e-visits, or expanded hours
- Comprehensive care management - Systematic assessments of medical and psychological needs
- Patient-centered care plan - An electronic, individualized plan covering goals, medications, specialists, and self-management
- Care transitions coordination - Management of inpatient, ED, and post-acute transitions
- Ongoing communication - Regular patient contact through calls, portal messages, or in-person visits
- Enhanced communication - Secure messaging, remote check-ins, and virtual touchpoints
- Population data analysis - Panel-level identification of care gaps and risk trends
- Risk stratification - Categorizing patients by clinical complexity to direct management intensity
- Performance measurement - Tracking and reporting quality metrics aligned with CMS value-based initiatives
APCM participation requires meeting CMS value-based care reporting thresholds. Practices billing APCM must report performance on the Value in Primary Care MIPS Value Pathway beginning in 2026 for the 2025 performance year, and must also participate in a Medicare Shared Savings Program ACO, a REACH ACO, the Making Care Primary model, or the Primary Care First model.
How APCM Differs From CCM and PCM
Understanding where APCM sits relative to other care management programs prevents billing conflicts and helps practices determine which program best fits each patient:
- CCM (99490/99439) - Time-based; requires 20+ documented minutes of non-face-to-face care per month; limited to patients with two or more chronic conditions. A detailed breakdown of CCM billing and documentation is available in the complete CCM services guide.
- PCM - Targets patients with a single complex chronic condition, placing them at risk of hospitalization or functional decline. Practices managing patients who fall outside CCM's two-condition threshold can explore the Principal Care Management billing framework as an alternative pathway.
- APCM (G0556–G0558) - Activity-based; no minimum time requirement; covers all Medicare beneficiaries from low-complexity preventive patients through high-complexity dual-eligible beneficiaries
APCM cannot be billed concurrently with CCM, PCM, TCM, inter professional internet consultation, remote evaluation of patient videos/images, virtual check-ins, or online digital E/M visits for the same patient in the same month. Only one provider may bill APCM for a given patient per calendar month.
What APCM Can Be Paired With
CMS supports the integration of APCM with RPM and telehealth to provide continuous monitoring and proactive care. RPM codes CPT 99457 and 99458 may be billed alongside APCM for patient management and interactive communication with the care team. Telehealth can be used for non-emergency check-ins and follow-up visits, enhancing access for patients with mobility or transportation limitations.
For practices managing patients dually enrolled in APCM and RPM, understanding the 2026 updates to RPM and CCM billing codes ensures clean documentation and prevents inadvertent double-counting of clinical time across programs.
Common Implementation Considerations
- Initiating visit - New patients or those not seen in the prior three years require a face-to-face initiating visit billed separately. The Annual Wellness Visit may qualify if the AWV-performing provider will also be responsible for APCM.
- Consent - Required once at enrollment; a separate consent from CCM is needed if the practice also runs CCM for other patients
- Care plan maintenance - CMS requires the care plan to be a "living document" updated as clinically necessary, not on a fixed schedule
- Quality reporting - Practices must participate in a qualifying value-based care model to bill APCM; this is a prerequisite, not optional
- Code selection - If a patient's status changes - for example, they enroll in the Qualified Medicare Beneficiary program - the billing code should be updated to G0558 in the following month
The CMS APCM program page is the authoritative source for service element definitions, billing provider requirements, and auxiliary personnel supervision rules.
Conclusion
APCM represents CMS's clearest signal yet that the future of Medicare reimbursement is activity-based, longitudinal, and population-oriented - not built on per-visit billing or minute-counting. For primary care practices already delivering coordinated, proactive care to Medicare patients, APCM provides a billing structure that better matches how that care is actually delivered. The 13 service elements are not a compliance checklist to chase - they are the infrastructure of a functioning advanced primary care program.
Practices that map their existing workflows against APCM's requirements, verify value-based care program participation, and implement clean documentation processes will be best positioned to scale APCM across their Medicare panel while maintaining the compliance standards that protect long-term program viability.
Frequently Asked Questions
Q1. Can APCM be billed for Medicare Advantage patients, or is it limited to Original Medicare?
APCM is primarily a Medicare Part B (Original Medicare) program and is not required to be covered by Medicare Advantage plans. Some MA plans may offer similar care management benefits, but coverage varies. Providers must verify eligibility with each plan before billing.
Q2. Does APCM require a minimum number of patient contacts per month to bill?
No, APCM has no minimum time or contact requirement like CCM. Billing is based on providing ongoing care coordination capability rather than specific monthly minutes. However, documented care activities should still support medical necessity.
Q3. What happens if a patient is already enrolled in CCM - can they switch to APCM?
Yes, patients can switch from CCM to APCM, but not in the same month. CCM and APCM cannot be billed together for the same patient. A new APCM consent is also required before starting the program.
Q4. Are there copay or cost-sharing obligations for patients enrolled in APCM?
Yes, standard Medicare Part B cost-sharing applies, including 20% coinsurance and deductibles. QMB patients are exempt from these costs. Patients should be informed of cost-sharing before enrollment to ensure proper documentation.
Q5. Can specialists bill APCM, or is it restricted to primary care physicians?
APCM is mainly intended for primary care providers responsible for overall patient care coordination. Specialists may qualify only in rare cases where they act as the primary care coordinator. Most specialists are better suited for PCM billing instead.
Q6. How does the Annual Wellness Visit interact with APCM enrollment?
An Annual Wellness Visit can be used as the initiating visit for APCM enrollment if the same provider continues care. The AWV is billed separately and does not replace APCM services. This allows efficient onboarding during routine preventive visits.
Q7. Does APCM require telehealth infrastructure, and can services be delivered remotely?
APCM does not mandate telehealth, but it does require that providers have the capability to deliver care through alternative modalities, including telehealth, e-visits, secure messaging, and home visits. HHS telehealth guidance confirms that APCM-related patient communications conducted via telehealth are consistent with the program's care delivery expectations.