Individual HCPs, Practices, and Health Systems: Choosing the Targeting Unit

Three units, three different jobs

Most brands need a mix. The question is which unit leads for each objective.

A four-question decision tree

1. Who actually makes the decision you need to change? If a system pathway determines first-line therapy, individual prescriber media will have limited effect until the pathway changes.
2. Is the message clinical, operational, or economic? Clinical messages usually go to prescribers. Operational messages about ordering, prior authorization support, or patient programs often reach practice staff better. Economic messages belong with system decision makers and usually outside programmatic entirely.
3. Can you identify the unit reliably? Individual NPIs are well structured. Practice and system affiliations are messier and require a documented data source.
4. Can you measure at that unit? Rx outcome measurement is typically at the prescriber level. If you target systems, plan how you will measure change at that level, often through aggregated or geographic designs.

Practical combinations

Prescriber-led with practice support. Target prescribers with clinical content and add practice-level reach for staff-facing messages about support programs. Keep the two audiences and their reporting separate.

System-aware prescriber targeting. Prioritize prescribers within systems where the therapy is already on pathway, because media can more plausibly change behavior there.

System-level awareness. For complex therapies, broad awareness among clinicians inside a target system may support field and account teams. Treat this as supporting the account strategy, not as a standalone media objective.

Data cautions

Affiliation data changes often. Clinicians join and leave groups, and systems merge. The NPPES registry lists practice locations as reported, which does not always reflect current affiliations. If practice or system membership drives inclusion, note the source and refresh date and plan a freshness check.

Also watch for double counting. A prescriber reached individually and again through practice targeting can receive more frequency than intended. Deduplicate at the NPI level where both approaches run.

Hypothetical example

An oncology brand finds that most new starts in its top accounts follow a system treatment pathway updated annually. Instead of increasing individual prescriber frequency, the team keeps prescriber media at steady levels, adds staff-facing content at practices within pathway-adopting systems, and coordinates timing with the account team's pathway discussions. The illustrative lesson: the unit followed the decision, not the data that happened to be available.

Practical takeaway

For each objective in the plan, write down the decision maker and the unit you will target. If they do not match, either change the unit or change the objective.

Editorial note. Analysis and frameworks are the author's own and do not represent Acxiom or any current or former employer, client, or named platform. Examples labeled hypothetical or illustrative are not results from real campaigns. Nothing here is legal, regulatory, or medical advice.