CLOQUET — Essentia Health is purchasing Park Avenue Therapies, an independent-owned practice that has been in operation for 35 years. The new clinic will be named Essentia Health-Cloquet Therapy, and it will offer both physical and occupational therapy. Park Avenue Therapies & Fitness Owner and Founder Rhonda Johnson approached the Duluth-based health system earlier this year about taking over the therapy portion of her business, located at 1204…