By Texas Back Institute / September 16, 2025 Meet Our Team Tiffany HartmanPhysician Assistant Book An Appointment [email protected] 469-617-4810 LocationsProvider: Dr. Kosztowski McKinney 4510 Medical Center Dr Suite 106 McKinney, TX 75069 Plano 6020 W Parker Rd. Suite 200, Plano, TX 75093