Your infectious disease physician takes a week of vacation. Or gets sick. Or resigns, and the search for a replacement stretches into months. The consults keep coming, positive cultures still need review, and your antimicrobial stewardship program is still a CMS requirement. For many hospitals, the gap gets filled with phone calls to an overextended colleague, delayed consults, or transfers that send patients down the road.

Backup infectious disease coverage closes that gap. Here is why it matters more every year, and what good coverage looks like.

The ID workforce is thin, and getting thinner

Even hospitals that have an ID physician are working with a narrow margin. A 2020 analysis in the Annals of Internal Medicine found that 2,499 of the 3,142 U.S. counties (79.5%) had no infectious disease physician at all, and that nearly two-thirds of Americans live in counties with below-average or no ID physician access.

The pipeline isn’t catching up. In the 2025 fellowship Match, adult infectious disease programs filled only 60.9% of their positions, according to the NRMP, and more than half of ID programs did not fill. The Infectious Diseases Society of America has warned that when hospitals lack ID physicians, preventable infections rise and antimicrobial misuse increases (IDSA).

The practical result: if your ID physician leaves, replacing them can take a long time. And if you have only one or two ID physicians, every vacation, conference, and sick day is a coverage problem.

What a gap in ID coverage costs

Timing matters in infectious disease care. A large Medicare claims study in Clinical Infectious Diseases found that patients who received ID specialist care had lower mortality and fewer readmissions than similar patients who did not. Patients seen by ID within two days of admission did better still: lower 30-day mortality and readmissions, shorter hospital and ICU stays, and lower Medicare charges and payments than patients whose ID involvement came later (Schmitt et al., 2014).

A week without coverage pushes consults into that “later” group. It also creates operational problems:

• Transfers. When no ID physician is available, some patients with complex infections end up at a larger center, along with the revenue tied to their care.
• Longer stays. Patients waiting on an ID plan, an antibiotic decision, or an OPAT discharge plan stay in the bed longer.
• Stewardship gaps. CMS requires hospitals to run an active, hospital-wide antibiotic stewardship program led by someone qualified through education, training, or experience in infectious diseases or stewardship (42 CFR 482.42). Critical access hospitals have parallel requirements under 42 CFR 485.640. That program does not pause when your ID physician is on vacation.
• Burnout. An ID physician who is never truly off is a retention risk. Reliable backup is one of the simplest ways to protect the physician you already have.

Where backup tele-ID coverage fits

Backup coverage is not a replacement for your ID team. It keeps the service running when your team can’t be there. Common uses include:

• Planned time off: vacations, CME, family events
• Unplanned absences: illness or family leave
• Nights, weekends, and holidays
• An open ID position while you recruit
• Ongoing part-time support for a hospital that doesn’t need, or can’t recruit, a full-time ID physician

What good backup coverage looks like

Not all coverage is equal. Before you sign with anyone, ask five questions:

1. Will we see the same physicians? Continuity matters. Your staff should know who is covering, and the covering physician should know your formulary, antibiogram, and protocols.
2. Are they credentialed before we need them? Licensing, credentialing, and privileging take time. The best time to set up backup coverage is before the first gap, not the week it starts.
3. Do they follow our handoff? Covering physicians should pick up your active census from a clear sign-out and hand it back the same way.
4. Does stewardship continue? Look for coverage that includes antimicrobial stewardship review, not just new consults.
5. What are the response times, and what does it cost? Both should be agreed in writing before coverage starts.

How IDSS approaches backup coverage

Infectious Disease Staffing Solutions is physician-owned and physician-centered. Our 16 infectious disease physicians provide telemedicine ID consults, including video and peer-to-peer consults, along with antimicrobial stewardship, infection prevention support, and OPAT management.

We match physicians to each facility by expertise, experience, and availability, so your team works with a consistent group rather than whoever happens to be free. We handle licensing and credentialing in your state, build a staffing plan around your schedule, and discuss pricing upfront.

Whether you need coverage for one week a year or a standing weekend schedule, the goal is the same: keep patients local, keep consults moving, and give your own ID physicians real time off. Hospitals without an ID physician can read our practical guide to tele-infectious disease for rural hospitals.

Frequently asked questions

What is backup infectious disease coverage?

It is an arrangement in which outside ID physicians cover your hospital’s infectious disease consults and related services when your own ID physicians are unavailable, such as during vacations, illness, weekends, or an open position.

Can backup tele-ID coverage work if we already have an ID physician on staff?

Yes, and that is one of the most common uses. Covering physicians pick up new consults and follow-ups during scheduled gaps and hand the census back when your physician returns.

How far in advance should we set up coverage?

Earlier than you might think. Licensing, credentialing, and privileging must be complete before a covering physician can see patients, so it is best to start before you need coverage.

Which states does IDSS cover?

We can cover hospitals in any state. IDSS handles physician licensing and credentialing in your state.

What services can backup coverage include?

New inpatient consults, follow-up on your active census, antimicrobial stewardship review, infection prevention support, and OPAT management. We build the plan around what your hospital needs.