LAWRENCE - Not everyone in Hollywood knows what nurses in catheterization labs wear, the specific package a poison antidote is delivered to the hospital in, or what really goes on in an emergency room.

That's why shows and movies need medical consultants, behind-the-scenes doctors that tweak the finest details of hospital drama.

Lawrence General Hospital now has such a "Hollywood person" right in its ER.

Dr. Irv Danesh, associate director of emergency medicine at Lawrence General Hospital, landed a medical consulting job after a chance encounter with a writer at a West Coast wedding.

By e-mail and phone, Danesh spent months helping writer Andrew Lenchewski fine tune his script. Then, between shifts, the 52-year-old doc has been jumping to filming sites all over the country for the new pilot dubbed "Royal Pains."

He said the first day of shooting "was amazing," noting props included five Ferrari sports cars and the backdrop for the set was a $32 million mega-mansion in South Hampton, N.Y.

Actor Mark Feuerstein, who played leading roles in the movie "What Women Want" and the sitcom "Good Morning, Miami," stars in the pilot, which is being produced by cable's USA Network.

Danesh, a smiling, witty man, says he's so impressed with his new job, he's decided to write his own medical screenplay.

"If anyone had told me I'd be doing this at the age of 52, I'd tell them they were crazy," said Danesh, a New York native and father of four sons, ages 16 to 25.

"Royal Pains" is the story of young doctor Hank Lawson who seems to have it all; a great career, beautiful fiance and swank New York City apartment. But after making one principled decision, Lawson loses it all and ends up single and blackballed from the medical community.

His best friend invites him to the Hamptons, the New York playground of the rich and famous, where they crash a party at a beach mansion. During the visit, Lawson jumps to the aid of a sick guest.

Before long, Lawson is summoned to another mansion and then another and soon his medical career takes off again in this opulent community.

Shooting a television pilot is a far different career from his own role as an emergency room doctor. Danesh has worked at Lawrence General for 15 years and loves the ER for the pace and constant change. On any given night, Danesh may treat patients for anything from a gun shot wound to a heart attack.

All doctors are different, but Danesh said he decided early in his career "I didn't want to be doing gall bladder surgeries all day ... I think anyone in emergency medicine comes into it for the action."

Yet, he admits he'd never even considered a job as a TV show consultant until his sister-in-law's wedding in Los Angeles last October.

There, he met fellow guest Andrew Lenchewski, who asked Danesh if he could help him with some of the medical jargon in "Royal Pains." Months later, Lenchewski sent him a 90-page script. The two started e-mailing and chatting about changes needed.

"This went on for months and months," he said.

When the USA Network bought the pilot, Lenchewski said he wanted Danesh there for filming.

On the set, Danesh said much of the work he did was with props and costuming. To insure the most realistic look, he even took photos of nurses who work in the Lawrence General catheterization lab to show producers.

"They were just the nicest people and great to work with," he said.

Feuerstein is also an amazing actor, who seems to have the ability to memorize his lines in split seconds, Danesh said.

The consulting role has also helped Danesh focus a bit of his future. He's now at work on his own screenplay; a tale of aspiring 1980s doctors who can't get into an American colleges so they go to medical school in Mexico. The story is somewhat biographical as Danesh went to medical school in Mexico and later worked in hospitals in New York, Philadelphia, California and New England Medical Center in Boston.

Despite the bright lights, glamour and even his cameo role as a cardiologist in "Royal Pains," Danesh said he has no immediate plans to back his bags and head to Hollywood permanently.

He came to Lawrence General originally because the "case mix" in the ER was so good. A medium-sized trauma center with specialized care for stroke victims, Danesh said the ER is also blessed with great and highly-skilled nurses.

"They are superb," he said.

It's unclear when "Royal Pains" will air on USA Network, a spokesman said.