How many hours should a medical director actually log? (The data says size barely matters)

Medical director agreements are written in hours: 10 a month, 20 a month, an annual cap, a time log to prove it. So before anyone argues about the rate, someone has to decide how many hours the role is worth. The usual shortcut is facility size. Bigger hospital, bigger time commitment, bigger stipend.

The filings say otherwise. We tested that assumption against 9,608 individual directorships reported in Medicare cost reports (FY2024–2025), and size turns out to be one of the weakest predictors of director hours in the dataset. Here is the finding, what it does to size-scaled benchmarks, and what the market's hours look like by specialty.

Shouldn't a bigger hospital mean more director hours?

The intuition is reasonable. A 500-bed hospital has more staff to credential, more committees, more protocols, more surveys to survive. Its ICU directorship should demand more time than the 90-bed community hospital's, and plenty of stipends get sized on exactly that logic: take the bed count, apply a multiplier, call it commensurate.

Reasonable, and mostly wrong.

What the data shows: size barely predicts hours

Across individual directorships with a reported bed count (n = 9,606), facility beds explain about 3% of the variation in reported director hours. Within a typical service line the number is the same, about 3%, and in the single line where size matters most it reaches only about 15%. Net patient revenue does no better as a size proxy: 3.4%.

• Beds vs hours — R² 0.03 · About 3% of the variation explained
• Median hours — 245/yr · Middle half 100 to 635
• Revenue as proxy — R² 0.034 · Net patient revenue does no better

Weakly associated is not unrelated, so be precise about what the 3% means. Median hours do drift upward with size: directorships at hospitals under 100 beds report a median of 153 hours a year, and at 500-plus beds the median is 417. But the spread inside every size band dwarfs that gradient. Small hospitals contain 1,000-hour directorships, large ones contain 50-hour directorships, and knowing the bed count tells you almost nothing about the directorship in front of you. If size drove hours, the scatter would be a tight upward line. It's a cloud.

What that means for a benchmark

Don't scale a stipend off bed count. A formula that walks hours up with beds manufactures precision the data doesn't contain, and it will fail in both directions: overpaying the big facility's protocols-and-committees role, underpaying the small facility's program-building one.

Size still has a job, as a sanity check at the extremes. A 40-bed hospital reporting a 2,000-hour cardiology directorship deserves questions. Between roughly comparable facilities, though, bed count is noise, and the defensible move is to benchmark hours against the specialty and the actual scope of the role.

So how many hours do directorships run?

The market's median time commitment is 245 hours a year, about 20 a month. The middle half of directorships runs from 100 to 635 hours; the 10th percentile logs 41 and the 90th logs 1,227. That last pair is the honest version of "it depends": there is no clean formula, only a distribution.

Median annual hours by service line (individual directorships, n ≥ 30):

Notice the ordering. Laboratory, which sits near the bottom of the rate table, sits at the top of the hours table; radiology, near the top on rate, runs light on hours. Hours track the nature of the oversight work, not the size of the building and not the price of the physician's time. The full per-specialty hours distributions, and the same cut by metro, sit in the paid tiers of the Medical Director tool.

Why hours vary, if not size

Four things do the explaining that beds can't.

• Specialty — Oversight cadence is built into the service line. A lab director signs off on CLIA compliance continuously; a radiology directorship can run on periodic protocol review.
• Scope — A single-unit role with quarterly committee duty and a multi-site directorship with program-building responsibility carry the same title and different jobs. Scope is the variable most size-based formulas are trying to approximate, badly.
• Co-directorships — Where a department splits oversight among co-directors, each reports fewer hours, so a low-hours filing can be a shared role rather than a small one.
• Org structure — Employed medical staff leadership absorbs work that a contracted directorship would otherwise cover, so two identical departments can report very different contracted hours.

Using hours in a defensible benchmark

For appraisers and compliance teams, hours are where directorship arrangements get tested. Regulators read time logs against duties; an OIG reviewer's first question about an outlier stipend is whether the hours are commensurate with the role. So treat reported hours as one input among several: start from the specialty median, adjust for documented scope, and check the implied hourly rate against the market rate benchmarks rather than trusting either number alone. The scope-intensity feature in the Medical Director tool productizes exactly this test: whether a directorship's hours and pay are commensurate with the size of the role.

If size drove hours, the scatter would be a tight upward line. It's a cloud.

For physicians, the practical version: if the offered time commitment is far from your specialty's median, that's a negotiating fact, and if the stipend divided by the hours lands outside the market's middle half, so is that.

Either way, the market data informs the range. Whether a specific arrangement's hours and compensation are consistent with fair market value is a facts-and-circumstances analysis, and that opinion stays with a qualified appraiser. Building the full comp set is covered in How to benchmark a medical-director stipend (defensibly).

Test one arrangement

Scope intensity checks whether hours and pay are commensurate with the role.

Sources and method

• Source — CMS Form 2552-10 Worksheet A-8-2, Medicare hospital cost reports
• Period — FY2024–2025, one filing per hospital
• Analysis set — 9,608 individual directorships; 9,606 with a reported bed count
• Size test — Pearson R² of hours on beds, pooled and within service lines with n ≥ 100 (23 lines); net patient revenue tested on 9,537 filings
• Hours definition — Reported administrative-physician hours as filed; top and bottom 1% of implied rates trimmed
• Known limits — Self-reported and unaudited; filings lag 12 to 24 months; co-directorship counts are not in this export, so the shared-role point is qualitative

Full methodology and limitations

Disclaimer

This article is a market-data benchmarking resource derived from publicly available Medicare hospital cost reports. It does not provide, and must not be relied upon as, a fair market value determination, valuation opinion, appraisal, or legal, tax, or compliance advice. The opinion of value for any specific arrangement remains the professional judgment of a qualified appraiser.