How to define, develop and measure the ANM role to build your leadership pipeline
A CNO can set strategy on Monday, but it only becomes practice when assistant nurse managers carry it through day, evening and night shifts. That translation layer is what HealthLeaders highlighted in a profile of Terry Dillman, VP and CNO at Plainview and Syosset Hospitals at Northwell Health. She called the ANM role "the most influential, underdeveloped leadership role in healthcare today."
The gap is operational, not motivational. Hospitals promote strong clinicians into ANM posts, then leave them to learn budgeting, conflict management, scheduling, and nursing leadership and management on their own. The result is a leadership tier with unit-wide accountability but little structured development, and a pipeline that stalls before manager, director and CNO succession can begin.
A charge nurse keeps one shift moving; an assistant nurse manager keeps the unit moving across every shift. Assistant nurse managers are unit-level leaders who extend the nurse manager's reach into day, evening, and night coverage and turn organizational priorities into bedside routines.
A single nurse manager cannot be present on day, evening, and night shifts. ANMs provide on-site leadership during off shifts, giving staff a consistent decision-maker who knows the unit's standards and can act without waiting for morning. That makes the ANM the bridge between the manager's office and the bedside.
Exact duties vary by facility. Some ANMs spend most of their time in clinical assignments, while others focus heavily on administrative work. In practice, many split their time, stepping into patient care during staffing gaps and returning to nurse administrator duties and responsibilities such as scheduling, rounding, and follow-up conversations.
The easiest way to confuse these roles is to focus on the title instead of the span of authority. A charge nurse manages a shift, an assistant nurse manager shares unit-wide accountability with the nurse manager, and a director of nursing owns multi-unit or department-level operations. The pay progression reflects that widening scope, from $73,390 for charge nurse and assistant nurse manager roles, to $123,860 or $166,100 for nurse managers depending on unit size, and $224,340 for a nursing or service line director in 2026.
| Role | Primary scope | Decision authority | Accountability | Pay (2026) |
|---|---|---|---|---|
| Assistant Nurse Manager | Permanent management position with shared accountability for patient outcomes, staff performance, regulatory compliance, hiring, performance evaluations, budget monitoring, and 24-hour oversight of an assigned inpatient unit. | Holds greater formal authority than a charge nurse, including authority related to hiring, performance evaluations, budget monitoring, and unit-wide operations across shifts. | Shared accountability for patient outcomes, staff performance, and regulatory compliance on an assigned inpatient unit. | $73,390 per year |
| Charge Nurse | Leads a nursing unit for a single shift; assigns patients, coordinates staff, manages unit workflow, coordinates admissions and discharges, and troubleshoots staffing gaps. | Assigns patient loads, coordinates staff, and manages shift workflow, but does not typically handle hiring, firing, performance evaluations, or long-term budgeting. | Unit outcomes during the assigned shift; ends when the shift is handed off. | $73,390 per year |
| Nurse Manager | Oversees unit operations, including staffing, budgeting, quality metrics, and performance management, as a middle-management leader. | Authority over hiring, scheduling, agency decisions, performance reviews, discipline, termination, and the full unit budget. | 24/7, 365-day accountability for the unit, including people, performance, budget, and HCAHPS-related outcomes. | $123,860 for single unit; $166,100 for large or multi-unit service |
| Director of Nursing | Oversees nursing operations across multiple units, service lines, or an entire nursing department; supervises nurse managers and may report below the chief nursing officer in large systems. | Sets department-wide staffing models, scheduling policies, float-pool strategy, and department-level policy; owns department labor, capital, and supply-budget decisions. | Department-wide clinical quality, patient safety, regulatory compliance, staffing strategy, budget, and nurse-manager development. | $224,340 per year |
Terry Dillman, VP and CNO at Plainview and Syosset Hospitals at Northwell Health, told HealthLeaders the assistant nurse manager role is "the most influential, underdeveloped leadership role in healthcare today." That quote, from CNOs Don't Forget About Assistant Nurse Managers, names the problem precisely: the ANM layer sits between frontline clinicians and executives, yet development budgets rarely treat it as its own line item.
Learning dollars tend to flow to two places: senior leader academies and bedside education. The ANMs who translate organizational strategy to the bedside on day, evening, and night shifts often receive the least structured preparation. They are close enough to the schedule and staffing to need operational skills, but not visible enough to be included in executive development cohorts.
The default move is to promote a strong clinician and assume leadership follows. Clinical excellence does not automatically build skill in finance, conflict management, or leading through change. Without a structured ramp, new ANMs learn by trial and error on live units, often without a nurse administrator first 90 days plan.
AONL guidance supports nurse leadership development programs before promotion through mentorship residencies, succession planning, and competency-based programs.1 A 2026 Nursing Management report on a six-month Clinical Charge Nurse Leadership Development Program using AONL Nurse Leader Competencies found participants reported more confidence, better communication and conflict resolution, and clearer operational understanding; several took on additional leadership responsibilities.2 Those are readiness signals, not guarantees.
A structured ANM residency costs less than repeated manager vacancies, stalled strategy, and churn among high-potential clinicians. The budget question is not whether the program is affordable, but what the middle layer costs when it keeps turning over.
Published benchmarks show why span matters. A 2024 AONL and Laudio analysis found a median nurse manager span of 46 employees, or 36 FTEs, and one in four inpatient managers carried at least 78 direct reports.1 Larger spans were associated with higher RN turnover: emergency departments with manager spans under 70 employees had 14% turnover, versus 23% when spans exceeded 115 employees.2 Larger spans are also associated with preventable adverse events and lower patient satisfaction.4 Engagement evidence is mixed. A 2025 analysis associated better outcomes below 60 FTEs, adding to staffing ratios and nurse retention evidence.3 Treat these as directional signals.
No single number fits every unit. AONL stresses that complexity, manager experience, resources, workload, and reporting structure all change the appropriate span.1 The 2024 medians of 83 for ED and 80 for ICU reflect current practice, not necessarily optimal design.1 A practical planning target is under 60 FTE reports for routine inpatient units, tighter for high-acuity, high-turnover, or novice teams.3 Assistant nurse managers (ANMs) do not automatically reduce a manager's span: 56% of managers had ANM support, but in 78% of those cases all team members still reported to the manager.1 When ANMs did carry direct reports, their median span was 20 to 25 employees.1
A span ratio without decision rights is just a headcount. Write a one-page authority card so night and weekend ANMs know what they can approve alone; where units use nurse scheduling software, embed the same approval rules in the tool. Common ANM approvals: shift swaps within the pay period, incidental overtime up to a set hour threshold, float requests within the same service line or cluster, and reassignment of orientees or precepted staff. Escalate to the nurse manager or director: overtime beyond the threshold or consecutive shift patterns, involuntary reassignment or low-census cancellation of staff, FTE or budget changes, corrective action, and unit closure or diversion decisions.
Give night and weekend ANMs a simple ladder: first, triage using approved swap, incidental overtime, and float-pool resources; second, if staffing falls below matrix or patient acuity spikes, contact the on-call manager or director; third, for facility-level incidents, activate the house supervisor or incident command.
A credible ANM residency starts with primary-source verification, not a polished secondhand summary. Before you adopt or replicate a program you have heard about, confirm what exists on the institution's own pages and through the people who run it.
Northwell Health's nursing externship and fellowship pages are the authoritative place to check current Assistant Nurse Manager Residency and Catalyst program descriptions, eligibility, length, and curriculum. Use exact phrases: "Northwell Assistant Nurse Manager Residency," "Northwell Catalyst program clinical nurses," and "HealthLeaders Northwell nurse residency." Add site-restricted searches such as site:northwell.edu and site:healthleadersmedia.com to surface press releases or nursing education updates. Public coverage did not surface a current Northwell announcement confirming either program's launch date, cohort size, or 2026 continuation, so treat any secondhand description as provisional.1
Reach out to Northwell HR, nursing education, or a program coordinator to confirm mentorship structure, operational experiences, and coaching components. Ask whether the reported 10-month ANM residency and 7-month Catalyst program are currently active, who is eligible, and what completion entails. Ask for a sample schedule and list of completed operational experiences. Confirm whether mentorship is one-to-one with an executive or group-based. Do not treat a career profile or general nurse residency page as proof of either named program.
When you obtain a program description, map it to AONL Nurse Leader Core Competencies. Ask for a syllabus or competency checklist covering strategic planning, financial stewardship, workforce engagement, quality and safety, operational excellence, conflict management, emotional intelligence, and change leadership. A program can say it is competency-based without actually teaching those domains.
BLS.gov provides nurse administrator salary and nurse manager role benchmarks to test whether a residency's promised next step is realistic. The ANA and state nursing associations offer nurse leader continuing professional development, mentorship, and coaching frameworks that can supplement a hospital's internal curriculum. Use them to assess any program you are evaluating or building. Verification is not a checkbox; it is the governance that keeps a residency honest.
CNML eligibility lists 2,080 hours in a nurse manager or primary unit leader role, or 4,160 hours in a comprehensive nursing leadership support role, marking where formal leadership credit starts.1
Charge nurses typically direct a single shift. ANMs carry that responsibility across all shifts, helping with schedules, staffing adjustments, coaching, and translating unit goals for day, evening, and night teams. Nurse managers own unit operations, budget, hiring, and performance. Directors of Nursing span multiple units and connect service-line strategy with execution; the Chief Nursing Officer holds system-wide accountability.
AONL's six Nurse Leader Core Competencies, anchored by Leader Within, give a shared development framework.2 The CNML (Certified Nurse Manager and Leader) targets nurse managers and requires an RN license, a baccalaureate or higher, and the experience hours above. The ANCC Nurse Executive Board Certified (NE-BC) requires a bachelor's in nursing, 2,000 hours of leadership or management within the last three years, and 30 continuing education hours.3
For ANM roles, current postings commonly require a BSN and about two to three years of acute-care experience; an MSN is often preferred, not required, with federal postings sometimes accepting an ADN or diploma plus supervisory experience.456 Higher rungs increasingly expect an MSN nursing leadership and administration degree or a related graduate degree.
Raise your hand for charge, preceptor, or committee work. Show you can manage flow and conflict, then ask for supervisory responsibilities. A BSN plus one to three years of charge or team-lead experience matches most current postings.
National wage estimates from the Bureau of Labor Statistics show how pay scales across nurse leadership and advanced practice roles. Medical and health services managers report a median annual wage above registered nurses, while nurse practitioners show the highest median of the occupations below.
| Occupation | Total employment | Mean annual wage | 25th percentile annual wage | Median annual wage | 75th percentile annual wage |
|---|---|---|---|---|---|
| Medical and Health Services Managers | 597,080 | $140,970 | $94,700 | $123,860 | $166,100 |
| Registered Nurses | 3,379,720 | $101,420 | $80,330 | $97,550 | $112,350 |
| Nurse Practitioners | 323,040 | $137,300 | $117,990 | $132,300 | $156,700 |
Salary.com reports a national average of $103,660 for assistant nurse managers as of October 1, 2026, with a typical range of $94,566–$113,385.
Set a baseline before the ANM residency launches and review it quarterly. Published benchmarks are mostly for broader nurse leader roles, not ANMs specifically: nurse manager annual exit rate is 7.5 percent, and in AONL's 2025 study 23 percent of nurse leaders intended to leave while another 23 percent said they might. No national ANM turnover, leadership vacancy, or succession readiness benchmark is established, so treat these numbers as directional context.
| Metric Bucket | Metric | How to Calculate It | What It Tells a CNO |
|---|---|---|---|
| Workforce metrics | ANM retention | Number of ANMs remaining at end of period divided by number at start, over 12 months | Shows whether ANMs stay long enough to lead; no ANM-specific benchmark exists, but nurse manager annual exit rate is 7.5 percent. |
| Workforce metrics | ANM promotion rate | Number of ANMs promoted to nurse manager or director divided by total ANMs in the period | Indicates how often the ANM role converts to future nurse managers or directors. |
| Workforce metrics | Leadership vacancy rate | Open nurse manager and assistant nurse manager positions divided by total leadership positions | Reveals unplanned gaps; AONL calls nurse manager vacancies a high priority but reports no percentage. |
| Workforce metrics | Succession plan readiness | Number of ANMs rated ready now or ready within one year for nurse manager roles divided by total ANMs | Measures bench strength for manager openings; no national readiness rate is published. |
| Employee engagement | ANM intent to leave | Annual survey item asking ANMs if they intend to leave within one year, reported as percent yes | Monitors retention risk; in AONL 2025 data 23 percent of nurse leaders intended to leave and another 23 percent said they might. |
| Operational metrics | Leadership replacement cost | Estimate unfilled role coverage, recruitment, onboarding, and lost productivity for a nurse manager or ANM opening | General benchmarks show senior leader replacement can reach 213 percent of salary, and CNO replacement can exceed $750,000; no ANM-specific cost is published. |
| Operational metrics | RN turnover cost | Use NSI Nursing Solutions 2026 staff RN replacement cost of $60,090 and each 1 percent RN turnover costing $262,000 to $295,000 annually | Frames organizational churn, but applies to staff RNs, not nurse leaders. |
