Near the end of Episode 11 ("The Magical Place"), we see an older man
walk out of his upscale brick home, at night, and get into his car.
When he does, he finds Coulson waiting in the back seat. "Good evening, Doctor"
We recognize him as Dr. Streiten, the same man in scrubs we saw
in Coulson's horrifying hospital flashbacks - the one who was pleading
with the others in the room to stop the procedure.
(In case you didn't recognize him, the role of the doctor was played by Ron Glass,
who played 'Detective Harris' in the classic 70's sitcom "Barney Miller".)
Coulson finally learns the full truth about "Tahiti... a magical place".
In the real world, this house is at 16257 Lovett Place, in Encino,
at the end of a short cul-de-sac. That's in L.A.'s San Fernando Valley.
(It is just a few houses east of Lloyd Rathman's house, on a short cul-de-sac.)
Here is a StreetView of the house:
[ Warning: This is a private home. Do not trespass on their property,
knock on their door, or do anything that might disturb the residents. ]