PA Locum Tenens: A Practical Guide for Cardiology Leaders
- 13 minutes ago
- 12 min read
About 1 in 23 physician assistants worked locum tenens as of October 2025, making temporary PA coverage a meaningful, if still selective, workforce channel. For cardiology leaders, PA locum tenens should be managed as a strategic staffing lever for access, service-line growth, and resilience, not as an emergency patch for an empty seat.
Cardiology programs face a specific operational problem. A vacant PA position can close clinic capacity, delay post-discharge follow-up, disrupt device surveillance, and leave physicians performing work that could otherwise support higher-acuity care. A locum PA doesn't solve every continuity or culture challenge, but the right assignment can preserve clinical throughput while permanent recruitment continues.
Table of Contents
The Strategic Case for PA Locum Tenens - The workforce history supports flexibility
Cost of Vacancy and When Locum PAs Make Sense - A practical decision test
Credentialing Licensure and Medicare Rules for Locum PAs - Supervision must be explicit - Medicare billing is not physician locum billing
Where PA Locums Are Changing Cardiology Programs - Fit matters more than generic availability
Pay Structure Benefits and Contract Terms - Terms that deserve negotiation
Finding Placements and Working With Specialized Firms - Questions for hospital leaders
Decision Framework and Common Questions - Five questions program directors should settle
The Strategic Case for PA Locum Tenens
The PA locum tenens workforce remains relatively small, but its role is expanding. A little over 4% of physician assistants, approximately 1 in 23, were working locum tenens jobs in October 2025, while PA employment is projected to grow 27% through 2032, according to current PA locum tenens workforce reporting. The same source reports that NPs and PAs represented 24% of providers working locum tenens, up from 8% in 2016, indicating that advanced practice coverage has become more relevant to hospitals and group practices.
The strategic shift is straightforward. Health systems can deploy locum PAs against defined operating needs, including planned leave, new clinic capacity, service-line launches, and temporary surges. That approach differs from waiting until a vacancy has already damaged access, physician productivity, or downstream procedural volume.
Cardiology provides a strong test case. Structural heart clinics, electrophysiology programs, and heart failure services often depend on APP-supported evaluation, education, surveillance, and follow-up. If a PA seat remains open, the resulting constraint may appear first as an appointment backlog, but the financial effect can extend into diagnostic testing, procedural referrals, and care transitions.
The workforce history supports flexibility
The profession has always had a connection to mobile, service-oriented care. The first PA program was created in 1965 by Dr. Eugene Stead Jr. at Duke University, using the skills of returning Navy corpsmen and Army medics in civilian care, as described in the history of veterans and physician associates in locum tenens. After federal support followed the Health Manpower Training Act of 1971, the profession expanded rapidly. By 1978, 42% of practicing PAs were ex-military medical corps members, according to the same account.
The lesson for executives isn't that every PA should work temporarily. It's that the profession's adaptability makes locum deployment credible when the assignment has a clear scope, a capable supervising model, and a defined endpoint.
Executive rule: Approve a locum PA because the assignment protects a measurable cardiology operating need, not because the permanent search has become frustrating.
A permanent hire remains the right answer for enduring continuity roles. Locum coverage is the bridge that protects access while leaders decide whether the need is temporary, recurring, or evidence of a larger service-line opportunity.
What PA Locum Tenens Actually Means
PA locum tenens means a licensed and credentialed physician assistant accepts a defined, time-limited assignment with a hospital, health system, specialty group, or clinic. The assignment should identify the practice location, clinical duties, schedule, supervision structure, documentation expectations, and billing arrangement before the PA begins.
This model isn't a travel nurse arrangement. It also isn't an independent medical practice role or moonlighting by an employed PA. A locum PA works within the host organization's clinical governance, facility policies, state law, and written supervising relationship.
The distinction from permanent hiring matters operationally. A permanent PA generally joins the organization's ongoing workforce model, with employment terms, benefits, leave policies, and long-term performance expectations. A locum PA is engaged for a specific coverage need and typically doesn't accrue the same employment benefits or tenure protections unless the staffing firm provides them through its own employment structure.
Physician locum coverage also can't be treated as the same product under a different title. Physician assistants have a different scope of practice, supervision framework, and Medicare reimbursement pathway. A hospital that copies a physician coverage workflow for a PA assignment creates avoidable compliance and revenue risk.
Dimension | PA Locum Tenens | Permanent PA Hire | Physician Locum |
|---|---|---|---|
Purpose | Defined temporary coverage, growth support, or surge capacity | Ongoing workforce and patient continuity | Temporary physician coverage |
Clinical authority | PA scope under state law, facility bylaws, and supervision requirements | Same PA framework, integrated over time | Physician scope and physician-specific credentialing |
Employment model | Agency employee or contractor arrangement, depending on the firm | Direct employment or group employment | Agency or direct locum arrangement |
Benefits | Contract-specific, may be provided by the staffing firm | Organization-defined benefits and leave | Contract-specific |
Billing | PA-specific Medicare and payer workflow | PA-specific Medicare and payer workflow | Physician locum rules may apply when requirements are met |
Best fit | Leave, recruitment bridge, new program ramp, or recurring coverage gap | Long-term continuity and embedded team roles | Physician vacancy, specialty coverage, or procedural demand |
Supervision can change by state and facility. A PA moving from an outpatient cardiology clinic to an inpatient consult service may face a different protocol, credentialing review, or supervising physician relationship even within the same health system. Cross-state assignments require separate attention to licensure and practice authority.
Cost of Vacancy and When Locum PAs Make Sense
An empty PA seat has a clinical and financial footprint. Cardiology leaders should calculate the work that disappears or shifts when the position remains unfilled, including clinic slots, stress echocardiography coordination, device checks, post-discharge visits, and referrals into catheterization or electrophysiology services.
The verified market data places the potential cost of an unfilled role at up to $2.6 million per vacancy, according to CHG Healthcare's 2025 locum usage analysis. That figure isn't a universal price tag for every PA vacancy. It's a warning that leaders should assess the full economic effect of lost access, delayed care, physician displacement, and downstream service-line activity rather than comparing only hourly rates.
Facilities still use locums mainly for backfill, but that pattern is changing. 67% of facilities reported using locums mainly to backfill, down from 82% in 2023, while 35% use them to meet rising patient demand and 28% to cover peak periods, according to the same CHG Healthcare report. 80% of organizations plan to maintain or increase locum use, and actual usage ran 25% above expectations in 2024.
A practical decision test
Locum PAs make sense when the need is defined and the vacancy has an immediate operating consequence:
Planned leave: FMLA, parental leave, sabbaticals, and other predictable absences justify a temporary assignment with a clear end date.
Program ramp-up: A new heart failure, structural heart, or EP workflow may need PA capacity before permanent staffing patterns stabilize.
Recruitment bridge: A search that exceeds the organization's normal hiring cycle can justify interim coverage if patient access is already constrained.
Demand surges: Seasonal or episodic volume can support temporary capacity without committing the organization to permanent headcount.
Locums lose their advantage when the role depends on deep longitudinal relationships, highly embedded team behavior, or years of follow-up continuity. They also become inefficient when a facility repeatedly renews the same temporary assignment without deciding whether the need is permanent.
A simple internal breakeven test is useful: compare the fully loaded cost of the assignment with the contribution margin from retained visits, preserved testing, avoided physician displacement, and protected procedural referrals. If the assignment merely fills a schedule without preserving meaningful access or downstream activity, the business case is weak. If it keeps a constrained cardiology pathway open while recruitment proceeds, the calculation changes.
Credentialing Licensure and Medicare Rules for Locum PAs
Credentialing is the operational backbone of a PA locum tenens assignment. The facility must verify the PA's license, education, training, work history, references, malpractice history, sanctions status, clinical privileges, and scope of practice. The process should begin as soon as the assignment is contemplated, not after the contract is signed.
State law controls the PA's authority, while facility bylaws determine local privileges and workflow. Compact participation may simplify some multistate processes where applicable, but it doesn't eliminate facility review, supervising physician requirements, or payer enrollment obligations. Pennsylvania illustrates the point: its Medical Practice Act permits a temporary license only for an applicant who already holds an unrestricted license from another U.S. state, territory, possession, or country, and the board may limit scope, duration, or practice site under Pennsylvania's Medical Practice Act.
Supervision must be explicit
The written agreement should name the supervising physician or physicians, define availability, establish escalation procedures, and identify the PA's permitted clinical activities. Facility leaders should reconcile the agreement with state law, medical staff bylaws, department protocols, and the actual setting, whether outpatient clinic, inpatient consult service, cath lab support, or EP follow-up.
Pennsylvania also imposes specific prescribing limits. A PA may not prescribe Schedule I controlled substances, may prescribe a Schedule II controlled substance only for initial therapy up to a 72-hour dose with notification to the supervising physician within 24 hours, and may prescribe up to a 30-day supply for ongoing therapy only after physician review and approval under Pennsylvania's PA prescribing regulation.
For a practical overview of the administrative process, cardiology leaders can review healthcare credentialing requirements.
Medicare billing is not physician locum billing
CMS guidance is unambiguous: the physician fee-for-time locum tenens pathway and reciprocal billing exceptions apply to physicians, not non-physician practitioners such as PAs. A PA's services generally require a separate PA billing workflow under the applicable Medicare rules, rather than use of the physician Q6-style substitute arrangement, as explained in CMS guidance on locum tenens and reciprocal billing.
Medicare pays PA services at 85% of the physician fee schedule when the PA bills directly, according to 42 CFR 410.74. The same regulation addresses supervision and clarifies that a PA's supervision of other nonphysician staff doesn't count as the PA personally performing the service.
Before the first claim, billing staff should verify the PA's enrollment identity, supervising clinician relationship, setting, documentation, and whether incident-to or direct billing applies. Those records matter more than a generic locum label.
Where PA Locums Are Changing Cardiology Programs
PA locum demand is becoming a workforce strategy across outpatient, inpatient, and specialty cardiology services. APP locum staffing, including PAs, grew nearly 25% year over year in the first half of 2024, and APPs represented about 15% of all locum providers by 2024, up from around 1% in 2020, according to industry trend reporting on locum tenens.
Cardiology leaders should deploy temporary PAs where the role has defined scope, workable physician supervision, and measurable operating value. The objective is not to fill any open seat. It is to preserve access, throughput, and continuity while recruitment or service redesign is underway.
Setting | Typical PA Locum Role | Strategic Value |
|---|---|---|
Outpatient cardiology | Continuity clinics, post-discharge visits, medication management, test follow-up, and device surveillance | Preserves appointment access while permanent recruitment continues |
Inpatient cardiology | Consult support, chest-pain evaluation, post-PCI admissions, discharge planning, and weekend coverage | Reduces pressure on physicians and protects timely transitions |
Heart failure | Volume management, education, transition follow-up, and multidisciplinary clinic support | Expands capacity for high-touch care pathways |
Electrophysiology | Pre-procedure assessment, post-ablation follow-up, device clinic support, and patient education | Keeps procedural pathways moving during volume spikes or departures |
Interventional cardiology | Inpatient coordination, post-procedure care, clinic preparation, and referral management | Protects cath lab-related throughput without assigning the PA physician-level procedural authority |
Structural heart | Referral intake, imaging coordination, preoperative assessment, and longitudinal follow-up | Supports a complex pathway that can otherwise bottleneck at evaluation and coordination stages |
Fit matters more than generic availability
A clinically strong generalist PA may still need substantial onboarding for multiple EHRs, specialized procedural protocols, or complex cardiology pathways. Evaluate experience with documentation standards, inpatient escalation, device workflows, and the department's established care pathways before approving the assignment.
The right comparison is the candidate's ability to perform defined work safely within the supervising physician model. An outpatient continuity placement may prioritize adaptability and communication. An EP or heart failure role may require specialized workflow experience from the first shift.
Supervision rules also shape the assignment. Define escalation thresholds, physician availability, procedure boundaries, handoff expectations, and documentation ownership before the PA starts. A temporary clinician can protect capacity only when the operating model is explicit.
The broader temporary-staffing market is projected to reach approximately $9.6 billion to $9.9 billion in 2025 to 2026, according to recent industry analysis. Cardiology may have lower locum volume than anesthesia or other high-demand lines, but its operating dependencies make clinical fit, credentialing, and supervision especially important.
Pay Structure Benefits and Contract Terms
A PA candidate shouldn't evaluate a locum assignment by headline hourly rate alone. The contract may distinguish between the facility's all-in bill rate and the PA's actual compensation, with separate treatment for overtime, call, holidays, travel, housing, malpractice, licensing, and benefits.
The cited compensation guidance places the typical PA locum range at $90 to $140 per hour, as discussed in how much a physician assistant makes. That range is a reference point, not a guaranteed offer. Specialty, geography, schedule, call burden, credentialing complexity, and assignment urgency can change the economics.
Terms that deserve negotiation
Assignments commonly use defined blocks of time with extension options, but the contract should state the actual dates and renewal process. Cancellation language matters just as much. A facility may need protection if volume changes, while the PA needs reasonable notice and clarity about compensation if the assignment ends early.
Candidates should review:
Pay mechanics: Hourly rate, overtime threshold, call compensation, holiday differentials, and any minimum shift guarantee.
Travel terms: Airfare approval, lodging standard, rental vehicle class, mileage treatment, and reimbursement timing.
Professional coverage: Malpractice limits, claims-made or occurrence structure, and responsibility for tail coverage.
Licensing expenses: Which party pays application fees, renewals, controlled-substance registration, and credentialing costs.
Employment classification: Whether the PA is a W-2 employee of the staffing firm or works under a 1099 arrangement.
Benefits: Health insurance, retirement access, paid leave, and eligibility rules tied to the staffing firm.
Restrictive clauses: Non-compete, non-solicit, conversion fees, and restrictions on accepting permanent employment with the host.
Contract checkpoint: A high rate doesn't compensate for undefined call, weak housing, uncovered tail exposure, or a cancellation clause that leaves the PA carrying the risk.
Cardiology candidates should also confirm the actual daily scope. A contract that says “cardiology coverage” without identifying clinic, inpatient, device, procedural, and call responsibilities leaves too much room for assignment drift. A hospital should expect the same precision. Ambiguous terms create disputes, delayed onboarding, and patient-safety concerns.
Finding Placements and Working With Specialized Firms
A cardiology PA can find locum assignments through an internal float pool, professional networks, job boards, general staffing agencies, or specialty-focused recruiting firms. These channels differ in speed, candidate reach, clinical screening, and administrative support. Treat the choice as a workforce decision, not a simple vacancy referral.
Internal pools usually understand local systems but may have limited geographic and subspecialty reach. Generalist agencies can search a broad market, yet hospital leaders must test whether the recruiter understands electrophysiology, heart failure, structural heart, interventional workflows, and PA supervision. A specialty partner should contribute clinical judgment, not just a database.
Questions for hospital leaders
A credible firm should explain its process in specific terms. Ask:
Candidate presentation: How quickly can it present qualified cardiology PAs after receiving the complete scope?
Specialty depth: Can it show experience recruiting for electrophysiology, heart failure, interventional, or structural heart coverage?
Clinical screening: Who verifies cardiology competency, procedures, EHR experience, and availability?
Credentialing support: Does it coordinate state licensing, hospital privileging, references, and payer enrollment?
Supervision fluency: Can the recruiter explain how the supervising physician relationship will be documented?
Malpractice structure: What coverage is included, and who handles tail obligations?
Travel administration: Which party controls lodging, transportation, extensions, and cancellation logistics?
Specialized firms often pre-screen cardiology competency and credentialing readiness. That can reduce avoidable onboarding delays when the hospital needs a PA who can work inside a demanding subspecialty workflow, rather than someone suited only to a general clinical schedule.
Use a disciplined sourcing sequence. First, define the service line, patient population, schedule, procedures, call expectations, supervision, EHR, and billing model. Next, request a focused shortlist and examine each candidate's cardiology background. Validate two professional references, complete the facility's credentialing review, and settle travel, housing, malpractice, and termination terms before signature.
Hospitals can compare internal resources and generalist locum firms with an overview of how specialized physician placement agencies operate. Select the partner that demonstrates clinical fit, transparent process ownership, and support through sourcing, credentialing, deployment, and assignment closeout.
Decision Framework and Common Questions
A hospital leader should approve PA locum tenens only after five conditions are clear:
Scope: The assignment identifies the setting, patient population, procedures, schedule, call, documentation, and escalation rules.
Supervision: A named supervising physician has sufficient availability and accepts the written responsibilities.
Duration: The organization knows whether the assignment covers leave, recruitment, a service-line launch, or recurring demand.
Budget: Finance has compared the fully loaded locum cost with the economic effect of lost access and displaced physician work.
Exit path: The contract states what happens at completion, including extension, conversion, handoff, and outstanding patient-care responsibilities.
Locum coverage usually wins when the need is temporary or uncertain, including planned leave, volume surges, fellowship transitions, and new service-line launches. Permanent PA hiring or a physician-led model is stronger when the program requires durable patient relationships, stable team integration, or ongoing ownership of a complex clinical pathway.
Five questions program directors should settle
Can a locum PA bill incident-to?Possibly, but the answer depends on the applicable Medicare rules, supervision, setting, documentation, and billing identity. The facility's compliance and revenue-cycle teams should determine whether incident-to or direct billing applies before the PA starts.
Does credentialing transfer between health systems?No assumption should be made. A PA may hold an active state license, but each hospital or health system generally needs its own privileging and credentialing review.
What happens when the contract ends?The PA must complete handoffs, close documentation, communicate unresolved care issues, and follow the agreement's termination and extension language. The facility should have a defined transition plan before the final shift.
Are travel and malpractice all-inclusive?Only the contract can answer that. Housing standards, mileage, rental vehicles, coverage limits, claims-made exposure, and tail responsibility should appear in writing.
What are the most common contract risks?Vague supervision language, automatic renewal, unclear call expectations, conversion fees, and non-compete or non-solicit restrictions can limit both operational flexibility and the PA's next career move.
The strongest arrangements treat a locum PA as a controlled workforce intervention. Leaders define the clinical problem, protect supervision capacity, verify billing, and set a clear endpoint. Candidates protect scope, compensation, travel, coverage, and professional autonomy through the same level of contract discipline.
American Cardiology Group provides cardiology-focused locum tenens coverage and advanced practice placement for hospitals, health systems, academic centers, private practices, and community programs. Leaders and PA candidates evaluating a cardiology assignment can visit American Cardiology Group to discuss specialized recruiting support.
Comments