Vet Clinics in Loudon, New Hampshire2 veterinary clinics in Loudon, New Hampshire.HomeClinicsNew HampshireLoudonClinicsAcorn Animal Wellness — 7312 Oak Hill Rd, Loudon, NH 03307, USA (5 stars)Healthy Heart Veterinary Clinic — 7140 Oak Hill Rd, Loudon, NH 03307, USA (4.9 stars)