Manual therapies as needed, including muscle release and/or Graston Technique. Explore PDR's Services. (763) 201-8191. Referrals Fax: (952) 303-4027. iSpine Clinics Maple Grove North. 9645 Grove Cr N, Ste 200. iSpine Clinics Chaska. 3000 Hundertmark Rd, Ste 250. iSpine Clinics PDR Coon Rapids East..