Premier Medical Group in Clarksville TN is a multi speciality practice with doctors to serve you in pediatrics, OB/GYN, a walk-in clinic & more! ... See My Provider Walk-In Clinics. Patient Portal . For services prior to 10-5-20 For services since 10-5-20. Make Payment . For services prior to 10-5-20 For services since 10-5-20. 931.245.7000 ....