By Nancy Dillon

Tuesday, August 3rd 2010, 4:00 AM

Resort rehab it’s not.

Lindsay Lohan‘s post-pokey pad is the renowned and no-nonsense substance abuse program at UCLA‘s Resnick Neuropsychiatric Hospital in Westwood, a source confirmed to the Daily News.

Though hospital officials refused to verify Lohan’s admission, citing patient confidentiality, the actress was transported from jail to the facility at 1:35 a.m. Monday to complete 90 days of in-patient treatment.

The hospital, which treated Britney Spears after her breakdown in early 2008, specializes in combined psychiatric and substance abuse disorders.

“It’s strict, it’s not plush. It’s a down-to-earth real therapeutic community that will deal with her underlying issues,” Beverly Hills-based addiction specialist Marty Brenner told The News.

Judge Marsha Revel made the last-minute switch to UCLA over concerns visitors might be able to pass contraband to Lohan, a source said.

The judge also ordered Lohan to go immediately to rehab after her release from the Century Regional Detention Facility, pulling the plug on her original decision giving the the starlet 24 hours with her family.

While she didn’t get a day with her family, Lohan did have physical contact with her mom on Monday.

“I was finally able to hug my daughter after two long weeks of speaking to her from behind a glass wall,” Dina Lohan told after the emotional early-morning reunion.

“Lindsay is doing well and is appreciative of the hundreds of well-wishes she has received,” the relieved mom said.

Lohan, 24, was released 14 days into her 90-day jail sentence due to good behavior and overcrowding.

A Sheriff’s spokesman Steve Whitmore confirmed that a “designated driver” took the “Mean Girls” star directly to rehab from a back exit of the jail that bypassed media waiting at the usual inmate release door.

Lawyer Shawn Chapman Holley told The News she rode with her client to the hospital.

“We had to comply with the wishes of the court, and safety and security were the paramount concerns. It wasn’t special treatment,” Whitmore told The News.

Lohan, who is on probation until August 2011, has a history with prescription and illegal drugs.