A former doctor who spent more than two decades on the run after being convicted of sexual assault has finally been captured — aboard a yacht off the coast of New Jersey.

Ronald L. Fischer, 70, had been wanted since 2005 after authorities say he disappeared before a Rhode Island jury returned a verdict in his sexual assault case.

The former anesthesiologist was accused of sexually assaulting a woman aboard his boat in 2003.

But instead of waiting to learn his fate, Fischer allegedly vanished.

He was later convicted in absentia and became a fugitive wanted for failure to appear and unlawful flight to avoid prosecution.

For more than 20 years, Fischer managed to stay one step ahead of authorities.

The well-traveled doctor eventually landed on Rhode Island’s Most Wanted List, and his case was featured multiple times on “America’s Most Wanted.”

His lengthy run finally came crashing to an end after the Rhode Island Violent Fugitive Task Force received what authorities described as a credible tip about his whereabouts.

Investigators with the FBI, Rhode Island State Police and U.S. Marshals Service began following newly developed leads that eventually took them to New York.

Authorities then tracked Fischer to a massive 56-foot vessel named Silver Lining.

But there was another twist.

The boat was reportedly registered under the name Richard Graydon — an alias authorities say Fischer had been using while hiding from justice.

That same name reportedly belonged to a doctor and veteran drug-development executive who had been hired in March by a Los Angeles-based biotechnology company.

An internet biography for Graydon, which has since been removed, reportedly included a photograph resembling Fischer.

The biotech company later announced that Graydon had been terminated for reasons it said were unrelated to his work activities.

Fischer’s life on the run officially ended when U.S. Marshals and local authorities moved in on Silver Lining roughly an hour off the New Jersey coast.

He was arrested without incident on a U.S. Marshals Service Unlawful Flight to Avoid Prosecution warrant and transported to New York.

Wing Chau, U.S. Marshal for the District of Rhode Island, said Fischer’s arrest proves fugitives cannot simply wait out the justice system.

“Time does not erase accountability,” Chau said.

He credited investigators, intelligence analysts and multiple law enforcement agencies for finally bringing Fischer into custody.

“We hope today’s arrest brings a measure of justice and long-awaited closure to the victim and everyone impacted by these crimes,” Chau said.

First Assistant U.S. Attorney Charles C. Calenda delivered an even more pointed message following Fischer’s capture.

“You can run, but you cannot hide from justice,” Calenda said.

Fischer is now expected to return to Rhode Island, where authorities say he will finally face the consequences he spent more than 20 years trying to escape.