According to Yahoo Sports' Chris Haynes, Hollins, 66, was "red-flagged" for health reasons amid the coronavirus pandemic.
On July 1, ESPN's Tim MacMahon reported the NBA would not prevent coaches from working with their teams in Orlando based on their ages alone.
The assurance followed criticism from the National Basketball Coaches Association, which was concerned the league's health and safety guidelines would single out older coaches since age is a factor in assessing risk related to COVID-19.
NBCA president and Dallas Mavericks head coach Rick Carlisle told MacMahon:
"Everybody goes through a screening process, but we've been assured by the league that no one will be red-flagged from going to Orlando based on age alone. That was a very positive thing for us to hear, but as I said, everybody in all 22 markets—all staff, all players, everybody—goes through a significant screening process. We'll see who ends up going, not going, etc. But we were very encouraged to hear that age alone would not be something that would keep you from going to Orlando."
Last month, the NBA gave teams a 113-page health and safety manual that said staffers must get a doctor's note approving their travel to Orlando, though teams can designate certain employees as high-risk and require them to get clearance from additional specialists.
The NBA also reserved the right to flag certain employees and refer them to a league-appointed panel of physicians who will have the final say over whether they can join the bubble at ESPN's Wide World of Sports Complex.
It is unclear if Hollins was flagged by the Lakers, the NBA or an independent doctor.
This is Hollins' first year with Los Angeles, and he is the second member of the organization who will not be joining the team for the restart of the 2019-20 campaign.
Wojnarowski reported guard Avery Bradley opted out because of family health concerns.