Dr. Alex Valadka has taken emergency room call in the nation’s fourth largest city, Houston, for 12 years. But only since last July did the 43 year-old neurosurgeon get paid for it.

One of two institutions where he practices. The Methodist Hospital, doles out $500 for each day he agrees to come in to treat emergency patients for cervical spine fractures, cerebral hemorrhages and more.

“Doctors brought it up. The hospital administration said, ‘no,’” Valadka, says. “Eventually they realized it was a trend.”

All Methodist community physicians are compensated now for covering the ER, whether or not they are called. Samplings of daily rates include $100 for pediatricians, $250 for general surgeons, topping off at $500 for cardiologists. “The stipend does not cover losses from being in your office and seeing patients, but it’s better than nothing,” Valadka says.

About 30 percent of the nation’s hospitals report they pay some specialists for ER call, according to a 2004 American Hospital Association survey of hospital leaders. About 2 percent of that number pays all specialists.

Most began the practice within the last two years. “It is becoming more common to pay physicians for on call ER coverage,” says Caroline Steinberg, vice president, trends analysis, AHA, Washington, D.C. Medical defense coverage and reimbursements for the poor are sometimes additional.

Stipends were little known only a decade ago. A confluence of changes in medicine altered what doctors provided voluntarily as a social imperative, as a means to build young practices and as a way to sustain old ones. A tide of uninsured patients, rising medical liability insurance rates and physician lifestyle issues converged to make ER call exceedingly undesirable. Doctors are demanding compensation.

“Historically, hospitals provided work shops for physicians in exchange for physicians having a responsibility to the community at large,” AHA’s Steinberg says. That workshop environment changed considerably when hospitalists started relieving primary care doctors of admissions in the 1990s.

At the same time, the growth of alternative practice venues, combined with technological and scientific advances that made outpatient surgeries possible, encouraged some surgical specialists, once dependent on hospitals, to reduce or drop their privileges.