“He is receiving treatment. He does not have any health care issues that have put him in a situation that would require a new decision,” Kirkpatrick said.

The situation for the John Doe in Villa Coronado could become more complicated if he’s identified — and found to be in the country illegally.

The man’s care, about $700 a day, is covered by Medi-Cal, the state’s program for the poor and disabled. A section in the Medi-Cal policy manual allows Jane and John Does to qualify for care when they are comatose, amnesic, or in some other way incompetent. A health care provider must conduct what’s called a “diligent search” to try and determine a person’s identity and ability to pay before applying for Medi-Cal on his or her behalf.

There are provisions in state policy that allow Medi-Cal to pay for long-term care for undocumented residents, according to a spokesman for the state.

This is the sixth time someone claiming to be the man’s relative has contacted Villa Coronado. The previous five inquiries did not result in a positive ID.

Ibarra Lara has enlisted the help of the Mexican Consulate in San Diego to work with the nursing home to identify whether the resident is her brother. She sent the consulate her brother’s Mexican military ID, which has his photo and his fingerprints.

“They told me it looked a lot like that young man (in the nursing home) and he more or less has the same age as my brother,” Ibarra Lara said.

Remedios Gómez Arnau, the Mexican consul general in San Diego, confirmed that her office was contacted Aug. 28 by the Mexican Consulate in Texas regarding Ibarra Lara’s claim.

Her office contacted nursing home administrators the next day, Gomez Arnau said.

“They are in the process of reviewing the fingerprints trying to see if they really match,” she said.

Ibarra Lara considered the immigration implications, but she said they can’t be worse than knowing that her brother is sick or alone.

“If he is my brother the only thing we want and think about is getting him back and taking care of him. And the rest God will decide what happens,” she said.

Ibarra Lara said if the man in the nursing home is her brother, she knows he’ll require medical care. She said her mother would take care of him in Mexico.

The Border Patrol reports that hundreds of migrants are found dead every year along the U.S. – Mexican border.

Many are never identified, according to the Colibrí Center for Human Rights in Arizona.

The Colibri Center attempts to identify remains and reunite them with their families. It has a database of 1,500 missing people last seen near the border.

Kirkpatrick would release few details because of privacy laws. The nursing home won’t provide a current photo of the man or allow Ibarra Lara to see him unless nursing home officials can positively identify her as his relative.

“At this time we do not have enough evidence to show this is the individual they are seeking,” Kirkpatrick said.

Medical administrators and practitioners acknowledge end-of-life treatment is a delicate and emotional area. But some don’t believe society is ready to decide who should live and who should die.

Dr. Lawrence Schneiderman, a physician, ethicist and professor emeritus at UC San Diego, doesn’t believe the government should pay for unlimited life-support treatment when there is no reasonable chance of recovery because it isn’t fair to everyone else.

He reacted strongly when told about unidentified people being kept alive.

“This is brought to absurd extremes by people who have nobody to speak for them,” he said, “And they’re just in a kind of inertia, legal and ethical inertia of just being kept on life-sustaining treatment.”

He said hospitals and nursing homes must establish policies to guide care in futile situations, when a patient is incapable of experiencing the benefit of treatment. These policies should address when physicians are not obligated to continue treatment if there is no benefit, he said.

Even if the John Doe at Villa Coronado is not Ibarra Lara’s brother, she wants the man’s story told.

She understands the anguish of a family not knowing what has happened to a loved one.

“How is it possible that someone (can) be there so many years, lost without their family,” she said.

“That young man is human… and if he’s not my brother, I would like to do everything possible to try to find his family as well.”

inewsource reporter Leo Castaneda and KPBS web assistant Lisa Shiroma contributed to this report.