Staffing an ID practice: the pharmacist is not optional

Most staffing guidance for physician practices assumes the ancillary business is a piece of equipment. In infectious disease it is a pharmacy, and that changes the roles you need.

The clinical spine

• Physicians — consultation, complex management, stewardship and institutional leadership.
• Advanced practice providers — outpatient follow-up, OPAT monitoring visits, stable chronic infection management and defined acute access. Scope, supervision and collaborative-practice requirements vary by state and are modified by payer policy; confirm what applies to you before designing the role or modelling its contribution.
• Infusion nursing — the binding constraint on infusion capacity. Concurrent-patient ratios, not chairs, determine how much therapy you can safely deliver.
• Pharmacist — clinical review, dosing, compounding oversight, drug storage and handling, and stewardship support. Employed or contracted, but not absent.

The roles that get left out

The OPAT coordinator

Referral intake, insurance verification, vascular access arrangement, home infusion or facility coordination, laboratory scheduling and result chasing, weekly review preparation, and complication triage. Surveyed OPAT programs consistently report coordination and communication among their central challenges — which is what happens when this work is distributed across people who have other primary jobs.

Fund it as a role. Then identify what pays for it: contracted hospital support, infusion contribution, or clinical revenue. A role with no identified funding source is a role that gets cut in the first difficult quarter, taking the program's reliability with it.

The authorisation function

In drug-heavy practice this is not a task somebody picks up between calls. Volume of high-cost authorisations plus reauthorisation on extension plus site-of-care approvals makes it a staffed position in most practices running an active infusion business.

Sizing it honestly

Build from the work, not from a ratio. Write out what a representative week requires: consult volume and where it happens, clinic sessions, infusion chair-hours, OPAT patients under active monitoring, authorisation volume, and institutional committee obligations. Attach honest time estimates. Sum it. That is your requirement — and it will look nothing like a generic staff-per-physician benchmark, because the ancillary business dominates it.

The cross-training problem

Small ID practices concentrate critical knowledge in individuals: one person who understands the authorisation pathways, one nurse who knows the home infusion relationships. That is an operational risk with a financial expression, and it surfaces during holidays and resignations. Document the pathways and cross-train deliberately.