EM practice models explained: who owns your emergency department group?

The main ownership models

Most US emergency physicians work for one of a few kinds of employer. The labels below follow the ownership categories used in the 2026 Annals of Emergency Medicine market-share study (Cai et al., 2026).

Physician-owned groups (clinician partnerships)

The group is owned by its physicians, who contract with one or more hospitals to staff the ED. They range from a single-site group (often called a democratic group when partners share ownership and votes) to regional and national partnerships. New physicians may join as employees with a path to partnership, sometimes with a buy-in.

Hospital or health-system employment

The health system employs the emergency physicians directly. There is no separate staffing contract to lose, but scheduling, pay and staffing decisions sit inside the system's own management.

Contract management groups, private equity and public companies

A contract management group (CMG) holds staffing contracts with many hospitals and employs or contracts with the physicians who work them. Some are physician-owned partnerships. Others are owned by private equity funds or publicly traded companies. At some employers, in any model, physicians are independent contractors rather than employees, so ask which you would be.

Who staffs US emergency departments

A recent study classified 3,998 emergency departments by physician employer ownership in 2024, using 109.7 million visits from 2021 as a proxy for volume (Cai et al., 2026). In ACEP's words, “fewer than half of emergency visits are staffed by majority physician-owned employers.”

Two more findings from the same analysis matter for job seekers. The three clinician-partnership categories together come to 42.3% of visits (20.8 + 13.4 + 8.1). And within the private-equity category, “93% of all ED visits were seen by physicians under three employers” (Cai et al., 2026). Within that category, the choice of employer is concentrated.

In a separate study, private equity and publicly traded companies' share of emergency medicine Medicare fee-for-service spending, measured by allowed amounts, grew from 8.6% in 2009 to 22.0% in 2019 (Adler et al., 2023).

What the research shows, and what it doesn't

Well supported: consolidation, and who owns what. The market-share figures above come from large datasets. Professional societies have also taken clear positions. ACEP's 2022 statement says staffing decisions belong to emergency physicians and that “full transparency regarding private equity and corporate investment is essential in the health care industry” (ACEP, 2022).

Thin: how each model affects the physicians who work in it. A 2026 JACEP Open review describes limited EM-specific evidence about private equity and notes that claims about less time with patients and less physician agency rest largely on non-EM studies and journalism (JACEP Open, 2026).

An EM survey comparing models shows why caution is needed. It asked AAEM members whether their APP supervision model was safe: 63% in community CMGs said yes, against 80–100% in other models, including military respondents at 80%. But only 196 physicians answered (a 4.8% response rate), the sample came from an organisation that openly opposes corporate ownership, and the survey instrument was not validated (Schreyer et al., 2025). It is a signal worth asking about, not a finding about any group you might join.

Not shown: we found no EM study that compares burnout or overall satisfaction by ownership model. Anyone telling you one model is where emergency physicians are happiest is going beyond the evidence. The useful question is not which model is best, but what this employer's contract says.

What changes for you

The same question can have very different answers depending on the model. These are the areas to check.

Questions to ask any employer

1. Who owns this employer, and who has a controlling stake?
2. Am I an employee or an independent contractor?
3. Who holds the contract with the hospital, when does it renew, and what happens to my job if it changes hands?
4. Is there a partnership track? What are the years to partner, buy-in and voting rights?
5. What are the noncompete radius and length, and do they apply if the contract is lost or I am let go?
6. Who pays tail coverage if I leave or the contract ends?
7. How many shifts per month, how long, and what share are nights?
8. What is the APP supervision ratio, and who sets it?
9. Can I speak with two physicians who work here now, and one who left in the last two years?

Many of these answers belong in the job listing itself. See what EM job postings don't tell you, and ask an attorney about noncompete laws in your state before you negotiate. Employers can list on VitalPair with these terms stated up front.

Common questions