Darvin Zimmerman

Darvin Zimmerman, boxer and bullmastiff breeder in Shippensburg, PA, serves families across the Cumberland Valley near Harrisburg. The kennel follows standards set by national boxer and bullmastiff clubs and prioritizes genetic diversity to reduce inherited issues. It health-tests adult dogs for common genetic conditions and registers each litter with major kennel clubs. Puppies are raised around children and livestock on a working farm, receiving daily socialization and habituation to household sounds.

With litters limited to ensure focused attention, each pup enjoys attention to early neurological stimulation, regular handling, and attentive veterinary care. Reviews note the calm temperaments and strong health of Zimmerman’s pups, and many have gone on to companion, therapy, or obedience roles, while owners appreciate consistent updates and transition guidance throughout puppyhood. Zimmerman operates a family-run facility where pups grow up with daily interaction and exposure to typical home routines. Adults live indoors as part of the household, ensuring well-socialized companions ready for new homes.