I'm not sure who 'Dr. Heigger' specifically is. There could be many people with this name. Maybe it's a name within a specific community, field, or just a relatively unknown individual.
It might imply that in the end, everyone's life is like a story. Maybe it's suggesting that we all have a narrative that concludes at some point, like in the Dr Who universe.
Well, it might suggest that in the Doctor Who universe, no matter who we are, our existence becomes a tale when it reaches its end. It could be a philosophical take on the show's characters and their journeys.