Cornerstone Pulmonary & Critical Care Associates, PLLC. 1424 Baddour Parkway, Lebanon, TN 37087 Tel: (615) 444-8686 Fax: (615) 444-7793. Home; About Us; Our Staff; Our Services; Patient Info. Appointments; Forms; ... The scope of our practice includes adult pulmonary in-patient/out-patient care and in-hospital critical care. Our state of the ....