An RVU, or relative value unit, is the number Medicare and most private payors use to measure how much work, complexity, and cost goes into a given medical service — and it’s the unit most employed physician compensation plans are actually built on. Understand how RVUs work and you understand why two physicians with the same base salary can take home very different pay depending on patient volume, visit complexity, and payor mix.
What is an RVU, exactly?
An RVU is a standardized measure of the resources a medical service requires, and every CPT code has an RVU value assigned to it under Medicare’s Resource-Based Relative Value Scale (RBRVS). A total RVU for any given service is made up of three components:
- Work RVU (wRVU) — the physician’s time, skill, and effort. This is the component most compensation plans key off.
- Practice expense RVU — overhead: staff, equipment, supplies, rent.
- Malpractice RVU — the malpractice risk associated with that specific service.
Add the three components together, multiply by a geographic adjustment and a dollar conversion factor Medicare sets annually, and you get the reimbursement rate for that CPT code. A 99214 office visit and a 20-minute joint injection have different total RVUs because they require different amounts of physician work, overhead, and malpractice exposure — not because one is arbitrarily “worth more.”
Why does the wRVU specifically decide your paycheck?
Most employed physician compensation plans pay on wRVUs specifically, not total RVUs, because wRVU isolates the piece of the equation that’s actually attributable to the physician’s own effort rather than the practice’s overhead or malpractice carrier. A typical structure sets a base salary tied to an expected wRVU threshold, then pays a per-wRVU rate — often called a “conversion factor” in the compensation plan, distinct from Medicare’s own conversion factor — for everything produced above that threshold.
That means two physicians on the same base salary can end up with very different take-home pay depending on how many patients they see, how complex those visits are coded, and how much of their payor mix reimburses at Medicare rates versus commercial rates. wRVU production is the same regardless of who’s paying, which is exactly why practices use it as the internal yardstick instead of raw collections — but it also means the number on your offer letter is only half the picture.
Why does the conversion factor vary so much between offers?
The per-wRVU conversion factor in a compensation plan varies because each practice sets its own rate based on what it can afford to pay per unit of physician work, which depends on the practice’s overhead, payor mix, and how much margin it needs to retain. Two practices in the same specialty and the same city can set noticeably different conversion factors depending on how efficiently each one is run and how much of its revenue comes from higher-reimbursing commercial payors versus Medicare and Medicaid.
This is also where hospital-employed and private-practice compensation plans tend to diverge. A hospital system often sets a conversion factor independent of what a given department actually collects, subsidizing lower-margin specialties as part of a broader strategic mix. A private practice generally can’t subsidize in the same way, so its conversion factor tends to track collections more directly. Neither structure is inherently better — but they create different incentives, and it’s worth knowing which one you’re being offered.
wRVU-based pay vs. collections-based pay: what’s the difference?
A wRVU-based model pays for the work performed regardless of what actually gets collected from the payor, while a collections-based model pays a percentage of what the practice actually receives after billing and reimbursement — meaning payor mix and billing efficiency directly affect a physician’s paycheck, not just patient volume.
wRVU models are more common in hospital-employed settings and shield the physician from collections risk — a service still counts the same whether the payor reimburses at 100% of the expected rate or denies the claim outright. Collections-based models, more common in some private practice and specialty settings, expose the physician directly to how well the practice’s billing operation performs, along with the payor mix of the patients actually being seen. Neither is universally better; the right question is which model matches the stability you’re looking for versus the upside you’re willing to take on.
How do you know if a wRVU threshold is reasonable?
A wRVU threshold is reasonable if it reflects a realistic patient panel and visit mix for your specialty, not an aspirational number set to make a base salary look larger than the practice expects to actually pay. This is where an offer can look identical on paper to a peer’s and still be structured very differently underneath — the base salary might match, but the wRVU target needed to hit that base, or to earn anything above it, can be set high enough that it’s rarely reached in practice.
The honest limitation here: there’s no universal wRVU number that’s “correct” for every specialty, practice setting, or region — specialty-specific benchmarking data (the kind organizations like MGMA publish) is the actual reference point, and it varies by specialty, geography, and practice type. Comparing your offer’s wRVU threshold against real benchmark data for your specialty, rather than against a peer’s anecdote or a recruiter’s assurance, is the difference between a number that sounds fine and a number you can verify.
DocNation’s Data Benchmarking service exists specifically for this comparison — putting a specific offer’s wRVU threshold and conversion factor against real data for the specialty and market, rather than leaving a physician to guess whether a number is generous or exploitative.
Does specialty change how much a wRVU is worth?
The wRVU value assigned to a given CPT code is the same regardless of specialty — Medicare’s RBRVS scale doesn’t vary by who performs the service — but what changes by specialty is how many wRVUs a typical patient encounter generates and how many encounters are realistic in a working day. A specialty built around longer, cognitively complex visits generates wRVUs differently than a procedure-heavy specialty built around shorter, higher-volume encounters, even if both specialties’ physicians are working equally hard.
This is exactly why comparing a wRVU threshold across specialties is close to meaningless, while comparing it within a specialty against real benchmark data is genuinely useful. A wRVU target that would be unreasonably high for one specialty could be entirely normal for another, simply because of how the underlying visit types generate wRVUs in the first place.
What should you do with this information before you negotiate?
Once you understand your own wRVU threshold and conversion factor, the next step is asking whether the whole compensation structure — not just the base number — holds up against the rest of the contract. A wRVU target that’s reasonable on its own can still sit inside a contract with a non-compete or termination clause that undercuts the value of the compensation entirely. Compensation and contract terms aren’t separate conversations; they’re the same conversation from two different angles.
That’s the connection worth making before signing anything: our guide to what to check in a physician contract before you sign walks through the non-compete, malpractice coverage, and termination terms that determine how much that wRVU number is actually worth to you over the life of the contract.
DocNation’s RVU and Compensation Analytics service takes a specific offer and breaks down what the wRVU structure actually means in dollar terms, given a realistic patient volume and payor mix — the analysis most physicians are trying to do in their head with an offer letter and a calculator.
What this article doesn’t cover: RVU-based billing disputes with payors, or coding-level questions about which CPT code applies to a specific encounter. Those are billing and coding questions, not compensation-structure questions, and they need a different kind of specialist.
