Is a Dhamma follower always a stream entrant?
It appears that the Dhamma-follower has assured Strem entry in this very life. He is in the Sotapanna path (Magga) but not experience fruits (Phala) He is a stream entrant to be.


  "One who, after pondering with a modicum of discernment, has accepted that these phenomena are this way is called a Dhamma-follower: one who has entered the orderliness of rightness, entered the plane of people of integrity, transcended the plane of the run-of-the-mill. He is incapable of doing any deed by which he might be reborn in hell, in the animal womb, or in the realm of hungry shades. He is incapable of passing away until he has realized the fruit of stream-entry.


SN 25.1

See also this topic Regarding Cula Sotapanna